Trouble Codes
"Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth." - Sherlock Holmes

OBDII P Code Definitions.

Be sure to double check the codes. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones listed here. Check specific manufacturer pages on the site, as some of them, we list the OBD2 codes on those pages for those specific vehicles.

[ P0000-0100 ] [ P0100-0200 ] [ P0200-0300 ] [ P0300-0400 ] [ P0400-0500 ] [ P0500-0600 ] [ P0600-0700 ] [ P0700-0800 ] [ P0800- ]
[ P1000-1100 ] [ P1100-1200 ] [ P1200-1300 ] [ P1300-1400 ] [ P1400-1500 ] [ P1500-1600 ] [ P1600-1700 ] [ P1700-1800 ] [ P1800- ]
[ P2000-2100 ] [ P2100-2200 ] [ P2200-2300 ] [ P2300-2400 ] [ P2400-2500 ] [ P2500-2600 ] [ P2600-2700 ] [ P2700-2800 ] [ P2800- ]
[ P3000-3100 ] [ P3100-3200 ] [ P3200-3300 ] [ P3300-3400 ] [ P3400-3500 ] [ P3500- ]

P2 Codes
Trouble Code Fault Location Probable Cause
P2000 – P2099 (Fuel and air metering and auxiliary emission control)
P2000Nitrogen oxides (NOx) trap, bank 1 - efficiency below thresholdNOx trap
P2001Nitrogen oxides (NOx) trap, bank 2 - efficiency below thresholdNOx trap
P2002Particulate trap, bank 1 - efficiency below thresholdParticulate trap
P2003Particulate trap, bank 2 - efficiency below thresholdParticulate trap
P2004Intake manifold air control actuator / solenoid, bank 1 - actuator / solenoid stuck openWiring, intake manifold air control actuator / solenoid, mechanical fault
P2005Intake manifold air control actuator / solenoid, bank 2 - actuator / solenoid stuck openWiring, intake manifold air control actuator / solenoid, mechanical fault
P2006Intake manifold air control actuator / solenoid, bank 1 - actuator / solenoid stuck closedWiring, intake manifold air control actuator / solenoid, mechanical fault
P2007Intake manifold air control actuator / solenoid, bank 2 - actuator / solenoid stuck closedWiring, intake manifold air control actuator / solenoid, mechanical fault
P2008Intake manifold air control actuator / solenoid, bank 1 -open circuitWiring open circuit, intake manifold air control actuator / solenoid
P2009Intake manifold air control actuator / solenoid, bank 1 -circuit lowWiring short to ground, intake manifold air control actuator / solenoid
P200AIntake manifold air control actuator / solenoid, bank 1 - performance problemWiring, intake manifold air control actuator / solenoid, ECM
P200BIntake manifold air control actuator / solenoid, bank 2 - performance problemWiring, intake manifold air control actuator / solenoid, ECM
P200CDiesel particulate filter (DPF), bank 1 - over-temperature condition-
P200DDiesel particulate filter (DPF), bank 2 - over-temperature condition-
P200ECatalytic converter, bank 1 - over-temperature condition-
P200FCatalytic converter, bank 2 - over-temperature condition-
P2010Intake manifold air control actuator / solenoid, bank 1 -circuit highWiring short to positive, intake manifold air control actuator / solenoid
P2011Intake manifold air control actuator / solenoid, bank 2 - open circuitWiring open circuit, intake manifold air control actuator / solenoid
P2012Intake manifold air control actuator / solenoid, bank 2- circuit lowWiring short to ground, intake manifold air control actuator / solenoid
P2013Intake manifold air control actuator / solenoid, bank 2- circuit highWiring short to positive, intake manifold air control actuator / solenoid
P2014Intake manifold air control actuator position sensor/switch, bank 1 - circuit malfunctionWiring, intake manifold air control actuator position sensor/switch
P2015Intake manifold air control actuator position sensor/switch, bank 1 - range/performance problemWiring, mechanical fault, intake manifold air control actuator position sensor/switch
P2016Intake manifold air control actuator position sensor/switch, bank 1 - circuit lowWiring short to ground, intake manifold air control actuator position sensor/switch
P2017Intake manifold air control actuator position sensor/switch, bank 1 - circuit highWiring short to positive, intake manifold air control actuator position sensor/switch
P2018Intake manifold air control actuator position sensor/switch, bank 1 - circuit intermittentWiring, poor connection, intake manifold air control actuator position sensor/switch
P2019Intake manifold air control actuator position sensor/switch, bank 2 - circuit malfunctionWiring, intake manifold air control actuator position sensor/switch
P201AReductant injector - circuit range/performance Bank 2 Unit 1Wiring, reductant injector, ECM
P201BISO/SAE Reserved -
P201CISO/SAE Reserved -
P201DISO/SAE Reserved -
P201EISO/SAE Reserved-
P201FISO/SAE Reserved-
P2020Intake manifold air control actuator position sensor/switch, bank 2 - range/performance problemWiring, mechanical fault, intake manifold air control actuator position sensor/switch
P2021Intake manifold air control actuator position sensor/switch, bank 2 - circuit lowWiring short to ground, intake manifold air control actuator position sensor/switch
P2022Intake manifold air control actuator position sensor/switch, bank 2 - circuit highWiring short to positive, intake manifold air control actuator position sensor/switch
P2023Intake manifold air control actuator position sensor/switch, bank 2 - circuit intermittentWiring, poor connection, intake manifold air control actuator position sensor/switch
P2024Evaporative emission (EVAP) fuel vapour temperature sensor - circuit malfunctionWiring, EVAP fuel vapour temperature sensor
P2025Evaporative emission (EVAP) fuel vapour temperature sensor - range/performance problemWiring, EVAP fuel vapour temperature sensor
P2026Evaporative emission (EVAP) fuel vapour temperature sensor - low voltageWiring short to ground, EVAP fuel vapour temperature sensor
P2027Evaporative emission (EVAP) fuel vapour temperature sensor - high voltageWiring short to positive, EVAP fuel vapour temperature sensor
P2028Evaporative emission (EVAP).fuel vapour temperature sensor - circuit intermittentWiring, poor connection, EVAP fuel vapour temperature sensor
P2029Auxiliary heater (fuel fired) - system disabledAuxiliary heater system
P202AReductant tank heater control - open circuitWiring, reductant tank heater, ECM
P202BReductant tank heater control - circuit lowWiring, reductant tank heater, ECM
P202CReductant tank heater control - circuit highWiring, reductant tank heater, ECM
P202DReductant leakage-
P202EReductant injector - circuit range/performance bank 1 unit 1Wiring, reductant injector, ECM
P202FReductant supply control - circuit range/performance-
P2030Auxiliary he·ater (fuel fired) - performance problemAuxiliary heater system
P2031Exhaust gas temperature (EGT) sensor 2, bank 1 - circuit malfunctionWiring, EGT sensor
P2032Exhaust gas temperature (EGT) sensor 2, bank 1 - circuit lowWiring short to ground, EGT sensor
P2033Exhaust gas temperature (EGT) sensor 2, bank 1 - circuit highWiring short to positive, EGT sensor
P2034Exhaust gas temperature (EGT) sensor 2, bank 2 - circuit malfunctionWiring, EGT sensor
P2035Exhaust gas temperature (EGT) sensor 2, bank 2 - circuit lowWiring short to ground, EGT sensor
P2036Exhaust gas temperature (EGT) sensor 2, bank 2 - circuit highWiring short to positive, EGT sensor
P2037Reductant injection air pressure sensor- circuit malfunctionWiring, reductant injection air pressure sensor
P2038Reductant injection air pressure sensor- range/performance problemWiring, reductant injection air pressure sensor
P2039Reductant injection air pressure sensor- low inputWiring short to ground, reductant injection air pressure sensor
P203AReductant level sensor - circuit malfunctionWiring, reductant level sensor, ECM
P203BReductant level sensor - circuit range/performanceWiring, reductant level sensor, ECM
P203CReductant level sensor - circuit lowWiring, reductant level sensor, ECM
P203DReductant level sensor - circuit highWiring, reductant level sensor, ECM
P203EReductant level sensor - circuit intermittent/erraticWiring, reductant level sensor, ECM
P203FReductant level - low-
P2040Reductant injection air pressure sensor - high inputWiring short to positive, reductant injection air pressure sensor
P2041Reductant injection air pressure sensor - circuit intermittentWiring, reductant injection air pressure sensor
P2042Reductant temperature sensor - circuit malfunctionWiring, reductant temperature sensor
P2043Reductant temperature sensor - range/performance problemWiring, reductant temperature sensor
P2044Reductant temperature sensor - low inputWiring, reductant temperature sensor
P2045Reductant temperature sensor - high inputWiring, reductant temperature sensor
P2046Reductant temperature sensor- circuit intermittentWiring, reductant temperature sensor
P2047Reductant injector 1, bank 1 - open circuitWiring, reductant injector
P2048Reductant injector 1, bank 1 - circuit lowWiring short to ground, reductant injector
P2049Reductant injector 1, bank 1 - circuit highWiring short to positive, reductant injector
P204AReductant pressure sensor - circuit malfunctionWiring, reductant pressure sensor, ECM
P204BReductant pressure sensor - circuit range/performanceWiring, reductant pressure sensor, ECM
P204CReductant pressure sensor - circuit lowWiring, reductant pressure sensor, ECM
P204DReductant pressure sensor - circuit highWiring, reductant pressure sensor, ECM
P204EReductant pressure sensor - circuit intermittent/erraticWiring, reductant pressure sensor, ECM
P204FReductant system, bank 1 - performance problem-
P2050Reductant injector 1, bank 2 - open circuitWiring, reductant injector
P2051Reductant injector 1, bank 2 - circuit lowWiring short to ground, reductant injector
P2052Reductant injector 1, bank 2 - circuit highWiring short to positive, reductant injector
P2053Reductant injector 2, bank 1 - open circuitWiring, reductant injector
P2054Reductant injector 2, bank 1 - circuit lowWiring short to ground, reductant injector
P2055Reductant injector 2, bank 1 - circuit highWiring short to positive, reductant injector
P2056Reductant injector 2, bank 2 - open circuitWiring, reductant injector
P2057Reductant injector 2, bank 2 - circuit lowWiring short to ground, reductant injector
P2058Reductant injector 2, bank 2 - circuit highWiring short to positive, reductant injector
P2059Reductant injection air pump - open circuitWiring, reductant injection air pump
P205AReductant temperature sensor - circuit malfunctionWiring, reductant tank temperature sensor, ECM
P205BReductant temperature sensor - circuit range/performanceWiring, reductant tank temperature sensor, ECM
P205CReductant temperature sensor - circuit lowWiring, reductant tank temperature sensor, ECM
P205DReductant temperature sensor - circuit highWiring, reductant tank temperature sensor, ECM
P205EReductant temperature sensor - circuit intermittent/erraticWiring, reductant tank temperature sensor, ECM
P205FReductant system, bank 2 - performance problem-
P2060Reductant injection air pump - circuit lowWiring short to ground, reductant injection air pump
P2061Reductant injection air pump - circuit highWiring short to positive, reductant injection air pump
P2062Reductant supply control - open circuitWiring
P2063Reductant supply control - circuit lowWiring
P2064Reductant supply control - circuit highWiring
P2065Fuel gauge tank sensor B - circuit malfunctionWiring, fuel gauge tank sensor
P2066Fuel gauge tank sensor B - performance problemWiring, fuel gauge tank sensor
P2067Fuel gauge tank sensor B - circuit lowWiring short to ground, fuel gauge tank sensor
P2068Fuel gauge tank sensor B - circuit highWiring short to positive, fuel gauge tank sensor
P2069Fuel gauge tank sensor B - circuit intermittentWiring, poor connection, fuel gauge tank sensor
P206AReductant quality sensor - malfunctionWiring, reductant quality sensor, ECM
P206BReductant quality sensor - range/performance problemWiring, reductant quality sensor, ECM
P206CReductant quality sensor - circuit lowWiring, reductant quality sensor, ECM
P206DReductant quality sensor - circuit highWiring, reductant quality sensor, ECM
P206EIntake manifold air control actuator, bank 2 - actuator stuck openWiring, intake manifold air control actuator, ECM
P206FIntake manifold air control actuator, bank 2 - actuator stuck closedWiring, intake manifold air control actuator, ECM
P2070Intake manifold air control actuator/solenoid- actuator/solenoid stuck openWiring, intake manifold air control actuator/solenoid, mechanical fault
P2071Intake manifold air control actuator/solenoid - actuator/solenoid stuck closedWiring, intake manifold air control actuator/solenoid, mechanical fault
P2074Manifold absolute pressure (MAP) sensor/throttle position switch (TPS) - high air flow/vacuum leakVacuum leak, wiring, MAP, TPS, ECM
P2075Intake manifold air control actuator position sensor/switch - circuit malfunctionWiring, intake manifold air control actuator position sensor/switch
P2076Intake manifold air control actuator position sensor/switch - range/performance problemWiring, intake manifold air control actuator position sensor/switch
P2077Intake manifold air control actuator position sensor/switch - circuit lowWiring short to ground, intake manifold air control actuator position sensor/switch
P2078Intake manifold air control actuator position sensor/switch - circuit highWiring short to positive, intake manifold air control actuator position sensor/switch
P2079Intake manifold air control actuator position sensor/switch - circuit intermittentWiring, poor connection, intake manifold air control actuator position sensor/switch
P207AIntake manifold air control actuator position sensor/switch, bank 2 - circuit malfunctionWiring, intake manifold air control actuator position sensor, ECM
P207BIntake manifold air control actuator position sensor/switch, bank 2 - circuit range/performanceWiring, intake manifold air control actuator position sensor, ECM
P207CIntake manifold air control actuator position sensor/switch, bank 2 - circuit lowWiring, intake manifold air control actuator position sensor, ECM
P207DIntake manifold air control actuator position sensor/switch, bank 2 - circuit highWiring, intake manifold air control actuator position sensor, ECM
P207EIntake manifold air control actuator position sensor/switch, bank 2 - circuit intermittentWiring, intake manifold air control actuator position sensor, ECM
P207FReductant quality - performance problem-
P2080Exhaust gas temperature (EGT) sensor 1, bank 1 - range/performance problemWiring, EGT sensor
P2081Exhaust gas temperature (EGT) sensor 1, bank 1 - circuit intermittentWiring, poor connection, EGT sensor
P2082Exhaust gas temperature (EGT) sensor 1, bank 2 - range/performance problemWiring, EGT sensor
P2083Exhaust gas temperature (EGT) sensor 1, bank 2 - circuit intermittentWiring, poor connection, EGT sensor
P2084Exhaust gas temperature (EGT) sensor 2, bank 1 - range/performance problemWiring, EGT sensor
P2085Exhaust gas temperature (EGT) sensor 2, bank 1 - circuit intermittentWiring, poor connection, EGT sensor
P2086Exhaust gas temperature (EGT) sensor 2, bank 2 - range/performance problemWiring, EGT sensor
P2087Exhaust gas temperature (EGT) sensor 2, bank 2 - circuit intermittentWiring, poor connection, EGT sensor
P2088Camshaft position (CMP) actuator A, bank 1 - circuit lowWiring short to ground, CMP actuator
P2089Camshaft position (CMP) actuator A, bank 1 - circuit highWiring short to positive, CMP actuator
P208AReductant pump control - open circuitWiring, reductant pump, ECM
P208BReductant pump control - range/performance problemWiring, reductant pump, ECM
P208CReductant pump control - circuit lowWiring, reductant pump, ECM
P208DReductant pump control - circuit highWiring, reductant pump, ECM
P208EReductant injector 1, bank 1 - stuck closedReductant injector
P208FReductant injector 1, bank 2 - stuck closedWiring, reductant injector, ECM
P2090Camshaft position (CMP) actuator B, bank 1 - circuit lowWiring short to ground, CMP actuator
P2091Camshaft position (CMP) actuator B, bank 1 - circuit highWiring short to positive, CMP actuator
P2092Camshaft position (CMP) actuator A, bank 2 - circuit lowWiring short to ground, CMP actuator
P2093Camshaft position (CMP) actuator A, bank 2 - circuit highWiring short to positive, CMP actuator
P2094Camshaft position (CMP) actuator B, bank 2 - circuit lowWiring short to ground, CMP actuator
P2095Camshaft position (CMP) actuator B, bank 2 - circuit highWiring short to positive, CMP actuator
P2096Post catalytic converter fuel trim (FT), bank 1 -too leanCatalytic converter, exhaust leak
P2097Post catalytic converter fuel trim (FT), bank 1 - too richCatalytic converter
P2098Post catalytic converter fuel trim (FT), bank 2- too leanCatalytic converter, exhaust leak
P2099Post catalytic converter fuel trim (FT), bank 2 -too richCatalytic converter
P209AReductant injection air pressure sensor B - circuit malfunctionWiring, reductant injection air pressure sensor, ECM
P209BReductant injection air pressure sensor B - circuit range/performanceWiring, reductant injection air pressure sensor, ECM
P209CReductant injection air pressure sensor B - circuit lowWiring, reductant injection air pressure sensor, ECM
P209DReductant injection air pressure sensor B - circuit highWiring, reductant injection air pressure sensor, ECM
P209EReductant injection air pressure sensor NB - correlationWiring, reductant injection air pressure sensor, ECM
P209FReductant tank heater control - performance problemWiring, reductant tank heater, ECM
P20A0Reductant purge control valve - open circuitWiring, reductant purge control valve, ECM
P20A1Reductant purge control valve - performance problemWiring, reductant purge control valve, ECM
P20A2Reductant purge control valve - circuit lowWiring, reductant purge control valve, ECM
P20A3Reductant purge control valve - circuit highWiring, reductant purge control valve, ECM
P20A4Reductant purge control valve - valve stuck openWiring, reductant purge control valve, ECM
P20A5Reductant purge control valve - valve stuck closedWiring, reductant purge control valve, ECM
P20A6Reductant injection air pressure control valve - open circuitWiring, reductant injection air pressure control valve, ECM
P20A7Reductant injection air pressure control valve - performance problemWiring, reductant injection air pressure control valve, ECM
P20A8Reductant injection air pressure control valve - circuit lowWiring, reductant injection air pressure control valve, ECM
P20A9Reductant injection air pressure control valve - circuit highWiring, reductant injection air pressure control valve, ECM
P20AAReductant injection air pressure control valve - valve stuck openWiring, reductant injection air pressure control valve, ECM
P20ABReductant injection air pressure control valve - valve stuck closedWiring, reductant injection air pressure control valve, ECM
P20ACReductant metering unit temperature sensor- circuit malfunctionWiring, reductant metering unit temperature sensor, ECM
P20ADReductant metering unit temperature sensor - circuit range/performanceWiring, reductant metering unit temperature sensor, ECM
P20AEReductant metering unit temperature sensor - circuit lowWiring, reductant metering unit temperature sensor, ECM
P20AFReductant metering unit temperature sensor - circuit highWiring, reductant metering unit temperature sensor, ECM
P20B0Reductant metering unit temperature sensor - circuit intermittenUerraticWiring, reductant metering unit temperature sensor, ECM
P20B1Reductant heater coolant control valve - open circuitWiring, reductant heater coolant control valve, ECM
P20B2Reductant heater coolant control valve - performance problemWiring, reductant heater coolant control valve, ECM
P20B3Reductant heater coolant control valve- circuit lowWiring, reductant heater coolant control valve, ECM
P20B4Reductant heater coolant control valve - circuit highWiring, reductant heater coolant control valve, ECM
P20B5Reductant metering unit heater control - openCircuit wiring, reductant heater, ECM
P20B6Reductant metering unit heater- control performance problemWiring, reductant metering unit heater, ECM
P20B7Reductant metering unit heater- control circuit lowWiring, reductant metering unit heater, ECM
P20B8Reductant metering unit heater control - circuit highWiring, reductant metering unit heater, ECM
P20B9Reductant heater control A - open circuitWiring, reductant heater, ECM
P20BAReductant heater control A - circuit performance problemWiring, reductant heater, ECM
P20BBReductant heater control A - circuit lowWiring, reductant heater, ECM
P20BCReductant heater control A - circuit highWiring, reductant heater, ECM
P20BDReductant heater control B - circuit openWiring, reductant heater, ECM
P20BEReductant heater control B - performance problemWiring, reductant heater, ECM
P20BFReductant heater control B - circuit lowWiring, reductant heater, ECM
P20C0Reductant heater control B - circuit highWiring, reductant heater, ECM
P20C1Reductant heater control C - open circuitWiring, reductant heater, ECM
P20C2Reductant heater control C- performance problemWiring, reductant heater, ECM
P20C3Reductant heater control C - circuit lowWiring, reductant heater, ECM
P20C4Reductant heater control C - circuit highWiring, reductant heater, ECM
P20C5Reductant heater control D - open circuitWiring, reductant heater, ECM
P20C6Reductant heater control 0- performance problemWiring, reductant heater, ECM
P20C7Reductant heater control 0 - circuit lowWiring, reductant heater, ECM
P20C8Reductant heater control 0 - circuit highWiring, reductant heater, ECM
P20C9Reductant control module - MIL activation requested-
P20CAReductant injection air pressure - leak-
P20CBExhaust after treatment fuel injector A - control circuit openWiring, exhaust after treatment fuel injector, ECM
P20CCExhaust after treatment fuel injector A - performance problemWiring, exhaust after treatment fuel injector, ECM
P20CDExhaust after treatment fuel injector A - control circuit lowWiring, fuel injector, ECM
P20CEExhaust after treatment fuel injector A - control circuit highWiring, fuel injector, ECM
P20CFExhaust after treatment fuel injector A - stuck openWiring, exhaust after treatment fuel injector, ECM
P20D0Exhaust after treatment fuel injector A - stuck closedWiring, exhaust after treatment fuel injector, ECM
P20D1Exhaust after treatment fuel injector B - control circuit openWiring, exhaust after treatment fuel injector, ECM
P20D3Exhaust after treatment fuel injector B - control circuit lowWiring, exhaust after treatment fuel injector, ECM
P20D4Exhaust after treatment fuel injector B - control circuit high ·Wiring, exhaust after treatment fuel injector, ECM
P20D6Exhaust after treatment fuel injector B - stuck closedWiring, exhaust after treatment fuel injector, ECM
P20D7Exhaust after treatment fuel supply control - open circuit-
P20D8Exhaust after treatment fuel supply control - performance problem-
P20D9Exhaust after treatment fuel supply- control circuit low-
P20DAExhaust after treatment fuel supply - control circuit high-
P20DBExhaust after treatment fuel supply - control stuck open-
P20DCExhaust after treatment fuel supply control - valve stuck closed-
P20DDExhaust after treatment fuel pressure sensor - circuit malfunctionWiring, exhaust after treatment fuel pressure sensor, ECM
P20DEExhaust after treatment fuel pressure sensor - circuit range/performanceWiring, exhaust after treatment fuel pressure sensor, ECM
P20DFExhaust after treatment fuel pressure sensor - circuit lowWiring, exhaust after treatment fuel pressure sensor, ECM
P20E0Exhaust after treatment fuel pressure sensor - circuit highWiring, exhaust after treatment fuel pressure sensor, ECM
P20E1Exhaust after treatment fuel pressure sensor - circuit intermittent/erraticWiring, exhaust after treatment fuel pressure sensor, ECM
P20E2Exhaust gas temperature sensor 1/2, bank 1 - correlationWiring, exhaust gas temperature sensor, ECM
P20E3Exhaust gas temperature sensor 1/3, bank 1 - correlationWiring, exhaust gas temperature sensor, ECM
P20E4Exhaust gas temperature sensor 2/3, bank 1 - correlationWiring, exhaust gas temperature sensor, ECM
P20E5Exhaust gas temperature sensor 1/2, bank 2- correlationWiring, exhaust gas temperature sensor, ECM
P20E6Reductant Injection Air Pressure Too Low-
P20E7Reductant Injection Air Pressure Too High-
P20E8Reductant Pressure Too Low-
P20E9Reductant Pressure Too High-
P20EAReductant Control Module Power Relay De-Energized Performance - Too Early-
P20EBReductant Control Module Power Relay De-Energized Performance - Too Late-
P20ECSCR NOx Catalyst - Over Temperature Bank 1-
P20EDSCR NOx Pre-Catalyst - Over Temperature Bank 1-
P20EESCR NOx Catalyst Efficiency Below Threshold Bank 1-
P20EFSCR NOx Pre- Catalyst Efficiency Below Threshold Bank 1-
P20F0SCR NOx Catalyst - Over Temperature Bank 2-
P20F1SCR NOx Pre-Catalyst - Over Temperature Bank 2-
P20F2SCR NOx Catalyst Efficiency Below Threshold Bank 2-
P20F3SCR NOx Pre- Catalyst Efficiency Below Threshold Bank 2-
P20F4Reductant Consumption Too Low-
P20F5Reductant Consumption Too High-
P20F6Reductant Injection Valve Stuck Open Bank 1 Unit 1-
P20F7Reductant Injection Valve Stuck Open Bank 2 Unit 1-
P20F8 – P20FFISO/SAE Reserved-
P2100 – P2199 (Fuel and air metering)
P2100Throttle actuator control (TAC) motor - open circuitWiring, TAC motor
P2101Throttle actuator control (TAC) motor - range/performance problemWiring, TAC motor
P2102Throttle actuator control (TAC) motor - circuit lowWiring short to ground, TAC motor
P2103Throttle actuator control (TAC) motor - circuit highWiring short to positive, TAC motor
P2104Throttle actuator control (TAC) system- forced idle modeWiring, TAC motor, APP sensor, ECM
P2105Throttle actuator control (TAC) system - forced engine shut down modeWiring, TAC motor, APP sensor, ECM
P2106Throttle actuator control (TAC) system - forced limited power modeWiring, TAC motor, APP sensor, ECM
P2107Throttle actuator control (TAC) module- processor faultTAC control module
P2108Throttle actuator control (TAC) module - performance problemTAC control module
P2109Accelerator pedal position (APP) / Throttle position (TP) sensor A - minimum stop performanceAPP sensor / TP sensor, throttle valve tight/sticking
P210AThrottle control unit B, control motor - open circuit / Heated oxygen sensor (H02S) 1, bank 1 - implausible signalWiring, throttle control unit, ECM / Wiring, short to positive, short to ground, H025, ECM
P210BThrottle control unit B, control motor- circuit range/performanceWiring, throttle control unit, ECM
P210CThrottle control unit B, control motor - circuit lowWiring, throttle control unit, ECM
P210DThrottle control unit B, control motor - circuit highWiring, throttle control unit, ECM
P210EThrottle position sensor (TPS)/accelerator pedal position (APP) sensor/switch C/F voltage - correlationWiring, TPS, APP sensor/switch, ECM
P210FHeated oxygen sensor (H02S) 1, bank 1 - implausible signalWiring, short to positive, short to ground, H02S, ECM
P2110Throttle actuator control (TAC) system - forced limited rpm mode / Heated oxygen sensor (H02S) 1, bank 1 - implausible signalWiring, TAC motor, APP sensor, ECM / Wiring, short to positive, short to ground, H025, ECM
P2111Throttle actuator control (TAC) system- actuator stuck open Throttle body, throttle valve tight/sticking
P2112Throttle actuator control (TAC) system - actuator stuck closed / - circuit malfunctionThrottle body, throttle valve tight/sticking / Wiring, short to positive, short to ground, TP sensor, ECM
P2113Accelerator pedal position (APP) / Throttle position (TP) sensor B - minimum stop performanceAPP sensor / TP sensor, throttle valve tight/sticking
P2114Accelerator pedal position (APP) / Throttle position (TP) sensor C - minimum stop performanceAPP sensor / TP sensor, throttle valve tight/sticking
P2115Accelerator pedal position (APP) / Throttle position (TP) sensor D - minimum stop performanceAPP sensor / TP sensor, throttle valve tight/sticking
P2116Accelerator pedal position (APP) / Throttle position (TP) sensor E - minimum stop performanceWiring, TP sensor / Wiring, TP sensor
P2117Accelerator pedal position (APP) sensor F / Throttle position (TP) - minimum stop performanceWiring, APP sensor / Wiring, TP sensor
P2118Throttle actuator control (TAC), throttle motor current - range/performance problemWiring, throttle motor
P2119Throttle actuator control (TAC), throttle valve - range/performance problem / Engine control module (ECM) - circuit malfunctionThrottle valve tight/sticking, throttle motor / Wiring, ECM
P211AISO/SAE Reserved -
P211BISO/SAE Reserved -
P211CISO/SAE Reserved -
P211DISO/SAE Reserved -
P211EISO/SAE Reserved -
P211FISO/SAE Reserved -
P2120Accelerator pedal position (APP) / Throttle position (TP) sensor/ switch D - circuit malfunction / Heated oxygen sensor (H02S) 1, bank 1 - implausible signalWiring, APP / TP sensor/switch / Wiring, short to positive, short to ground, H02S, ECM
P2121Accelerator pedal position (APP) / Throttle position (TP) sensor/switch D - range/performance problemWiring, APP / TP sensor/switch
P2122Accelerator pedal position (APP) / Throttle position (TP) sensor/switch D - low input / Engine control module (ECM), idle control - high inputWiring short to ground, APP / TP sensor/switch / Wiring, short to positive, TP sensor, ETS control module
P2123Accelerator pedal position (APP) / Throttle position (TP) sensor/switch D - high inputWiring short to positive, APP / TP sensor/switch
P2124Accelerator pedal position (APP) / Throttle position (TP) sensor/switch D - circuit intermittentWiring, poor connection, APP / TP sensor/switch
P2125Accelerator pedal position (APP) / Throttle position (TP) sensor/switch E - circuit malfunction Wiring, APP / TP sensor/switch
P2126Accelerator pedal position (APP) / Throttle position (TP) sensor/switch E - range/performance problemWiring, APP / TP sensor/switch
P2127Accelerator pedal position (APP) / Throttle position (TP) sensor/switch E - low inputWiring short to ground, APP / TP sensor/switch
P2128Accelerator pedal position (APP) / Throttle position (TP) sensor/switch E - high inputWiring short to positive, APP / TP sensor/switch
P2129Accelerator pedal position (APP) / Throttle position (TP) sensor/switch E - circuit intermittentWiring, poor connection, APP / TP sensor/switch
P212AThrottle Position Sensor/Switch "G" Circuit -
P212BThrottle Position Sensor/Switch "G" Circuit Range/Performance -
P212CThrottle Position Sensor/Switch "G" Circuit Low -
P212DThrottle Position Sensor/Switch "G" Circuit High -
P212EThrottle Position Sensor/Switch "G" Circuit Intermittent -
P212FISO/SAE Reserved -
P2130Accelerator pedal position (APP) / Throttle position (TP) sensor/switch F- circuit malfunctionWiring, APP / TP sensor/switch
P2131Accelerator pedal position (APP) / Throttle position (TP) sensor/switch F- circuit range/performance problem / Brake pedal position (BPP) switch - no signalWiring, APP / TP sensor/switch / Wiring, BPP switch, ECM
P2132Accelerator pedal position (APP) / Throttle position (TP) sensor/switch F- low inputWiring short to ground, APP / TP sensor/switch
P2133Accelerator pedal position (APP) / Throttle position (TP) sensor/switch F - high inputWiring short to positive, APP / TP sensor/switch
P2134Accelerator pedal position (APP) / Throttle position (TP) sensor/switch F- circuit intermittentWiring, poor connection, APP / TP sensor/switch
P2135Accelerator pedal position (APP) / Throttle position (TP) sensor/switch A/B - voltage correlationWiring, APP / TP sensor/switch / Wiring, TP sensor/switch
P2136Accelerator pedal position (APP) / Throttle position (TP) sensor/switch A/C - voltage correlationWiring, APP / TP sensor/switch
P2137Accelerator pedal position (APP) sensor/switch B/C / Throttle position (TP) sensor/switch D/E - voltage correlationWiring, APP sensor/switch / Wiring, TP sensor/switch
P2138Throttle position (TP) sensor/switch D/E - voltage correlationWiring, TP sensor/switch
P2139Accelerator pedal position (APP) / Throttle position (TP) sensor/switch D/F - voltage correlationWiring, APP / TP sensor/switch
P213AExhaust gas recirculation (EGR) throttle B - open circuitWiring, EGR throttle, ECM
P213BExhaust gas recirculation (EGR) throttle B - control circuit range/performanceWiring, EGR throttle, ECM
P213CExhaust gas recirculation (EGR) throttle B - control circuit lowWiring, EGR throttle, ECM
P213DExhaust gas recirculation (EGR) throttle B - control circuit highWiring, EGR throttle, ECM
P213EFuel injection system fault- forced engine shut-down mode-
P213FFuel pump (FP) system fault - forced engine shut-down modeWiring, FP, FP relay, ECM
P2140Accelerator pedal position (APP) / Throttle position (TP) sensor/switch E/F - voltage correlation / Long term fuel trim (LTFT), bank 1 -range/performance problemWiring, APP / TP sensor/switch / Catalytic converter, exhaust leak, injector leakage, H025
P2141Exhaust gas recirculation (EGR) throttle control valve - circuit lowWiring short to ground, EGR throttle control valve
P2142Exhaust gas recirculation (EGR) throttle control valve - circuit highWiring short to positive, EGR throttle control valve
P2143Exhaust gas recirculation (EGR) vent control - open circuitWiring, EGR vent control
P2144Exhaust gas recirculation (EGR) vent control - circuit lowWiring short to ground, EGR vent control
P2145Exhaust gas recirculation (EGR) vent control - circuit highWiring short to positive, EGR vent control
P2146Injector- group A, supply voltage - open circuitWiring, engine control (EC) relay, injector
P2147Injector - group A, supply voltage - circuit lowWiring short to ground, engine control (EC) relay, injector
P2148Injector - group A, supply voltage - circuit highWiring short to positive, engine control (EC) relay, injector
P2149Injector - group B, supply voltage - open circuitWiring, engine control (EC) relay, Injector
P214AISO/SAE Reserved -
P214BISO/SAE Reserved -
P214CLong term fuel trim (LTFT), bank 1 - range/performance problemCatalytic converter, exhaust leak, Injector leakage, H02S
P214DLong term fuel trim (LTFT), bank 1 -range/performance problemCatalytic converter, exhaust leak, injector leakage, H02S
P214EISO/SAE Reserved -
P214FISO/SAE Reserved -
P2150Injector- group B, supply voltage- circuit lowWiring short to ground, engine control (EC) relay, injector
P2151Injector - group B, supply voltage -circuit highWiring short to positive, engine control (EC) relay, injector
P2152Injector - group C, supply voltage - open circuitWiring, engine control (EC) relay, injector
P2153Injector - group C, supply voltage - circuit lowWiring short to ground, engine control (EC) relay, injector
P2154Injector - group C, supply voltage - circuit highWiring short to positive, engine control (EC) relay, injector
P2155Injector- group D, supply voltage - open circuitWiring, engine control (EC) relay, injector
P2156Injector- group D, supply voltage- circuit lowWiring short to ground, engine control (EC) relay, injector
P2157Injector- group D, supply voltage - circuit highWiring short to positive, engine control (EC) relay, injector
P2158Vehicle speed sensor (VSS) B- circuit malfunctionWiring, VSS
P2159Vehicle speed sensor (VSS) B - range/performance problemWiring, VSS
P215AVehicle speed sensor (VSS)/wheel speed - correlationWiring, VSS, wheel speed sensor, incorrect tyre size, ECM
P215BVehicle speed sensor (VSS)/transmission output shaft speed (OSS) sensor - correlationWiring, VSS, OSS sensor, transmission mechanical fault, incorrect tyre size, ECM
P215COutput Shaft Speed - Wheel Speed Correlation -
P215DISO/SAE Reserved -
P215EISO/SAE Reserved -
P215FISO/SAE Reserved -
P2160Vehicle speed sensor (VSS) B -circuit lowWiring short to ground, VSS
P2161Vehicle speed sensor (VSS) B -circuit intermittent/erraticWiring, poor connection, VSS
P2162Vehicle speed sensor (VSS) AlB -correlationWiring, VSS, incorrect tire size
P2163Accelerator pedal position (APP) / Throttle position (TP) sensor A - maximum stop performanceWiring, APP sensor / Wiring, TP sensor
P2164Accelerator pedal position (APP) / Throttle position (TP) sensor B - maximum stop performanceWiring, APP sensor / Wiring, TP sensor
P2165Accelerator pedal position (APP) / Throttle position (TP) sensor C - maximum stop performanceWiring, APP sensor / Wiring, TP sensor
P2166Accelerator pedal position (APP) / Throttle position (TP) sensor D - maximum stop performanceWiring, APP sensor / Wiring, TP sensor
P2167 Accelerator pedal position (APP) / Throttle position (TP) sensor E - maximum stop performanceWiring, APP sensor / Wiring, TP sensor
P2168Accelerator pedal position (APP) / Throttle position (TP) sensor F - maximum stop performanceWiring, APP sensor / Wiring, TP sensor
P2169Exhaust gas pressure regulator vent solenoid - circuit openWiring, exhaust gas pressure regulator vent solenoid
P216A Fuel injector group E, supply voltage - open circuit Wiring, engine control (EC) relay, injectors, ECM
P216B Fuel injector group E, supply voltage - circuit low Wiring, engine control (EC) relay, injectors, ECM
P216C Fuel injector group E, supply voltage - circuit high Wiring, engine control (EC) relay, injectors, ECM
P216DFuel injector group F, supply voltage - open circuitWiring, engine control (EC) relay, injectors, ECM
P216EFuel injector group F, supply voltage - circuit lowWiring, engine control (EC) relay, injectors, ECM
P216F Fuel injector group F, supply voltage - circuit high Wiring,Wiring, engine control (EC) relay, injectors, ECM
P2170 Exhaust gas pressure regulator vent solenoid - circuit low Wiring short to ground, exhaust gas pressure regulator vent solenoid
P2171 Exhaust gas pressure regulator vent solenoid - circuit highWiring short to positive, exhaust gas pressure regulator vent solenoid
P2172Throttle actuator control (TAG) system - sudden high airflow detected Intake system, throttle body
P2173 Throttle actuator control (TAG) system - high airflow detected Intake system, throttle body
P2174 Throttle actuator control (TAC) system - sudden low airflow detected Intake system, throttle body
P2175 Throttle actuator control (TAG) system - low airflow detectedIntake system, throttle body
P2176Throttle actuator control (TAG) system - idle position not learned Basic setting not carried out
P2177System too lean off idle, bank 1 / Adaptive heated oxygen sensor (H02S) control, bank 1 - signal high Fuel pressure, injectors, intake leak / Wiring, short to positive, H02S, ECM
P2178System too rich off idle, bank 1 / Adaptive heated oxygen sensor (H02S) control, bank 1 - signal lowFuel pressure, injectors, air intake restricted / Wiring, short to positive, H02S, ECM
P2179System too lean off idle, bank 2 / Adaptive heated oxygen sensor (H02S) control, bank 2 - signal high Fuel pressure, injectors, intake leak / Wiring, short to positive, H02S, ECM
P217AFuel Injector Group "G" Supply Voltage Circuit/Open -
P217BFuel Injector Group "G" Supply Voltage Circuit Low -
P217CFuel Injector Group "G" Supply Voltage Circuit High -
P217DFuel Injector Group "H" Supply Voltage Circuit/Open -
P217EFuel Injector Group "H" Supply Voltage Circuit Low -
P217FFuel Injector Group "H" Supply Voltage Circuit High -
P2180System too rich off idle, bank 2 / Adaptive heated oxygen sensor (H02S) control, bank 2 - signal lowFuel pressure, injectors, air intake restricted / Wiring, short to ground, H02S, ECM
P2181 Cooling system performance Radiator, coolant thermostat, engine coolant blower motor, ECT sensor
P2182 Engine coolant temperature (ECT) sensor 2 - circuit malfunction Wiring, ECT sensor
P2183Engine coolant temperature (ECT) sensor 2 - range/performance problemWiring, ECT sensor
P2184Engine coolant temperature (ECT) sensor 2 - circuit lowWiring short to ground, ECT sensor
P2185Engine coolant temperature (ECT) sensor 2 - circuit highWiring short to positive, ECT sensor
P2186Engine coolant temperature (ECT) sensor 2 - circuit intermittent/erraticWiring, poor connection, ECT sensor
P2187System too lean at idle, bank 1Fuel pressure, injectors, intake leak
P2188System too rich at idle, bank 1 / Adaptive heated oxygen sensor (H02S) control, bank 1 - signal low / - implausible signalFuel pressure, injectors, air intake restricted / Wiring, short to ground, H02S, ECM / Wiring, short to positive, short to ground, H025, ECM
P2189System too lean at idle, bank 2Fuel pressure, injectors, intake leak
P218AISO/SAE Reserved -
P218BISO/SAE Reserved -
P218CISO/SAE Reserved -
P218DISO/SAE Reserved -
P218EISO/SAE Reserved -
P218FISO/SAE Reserved -
P2190System too rich at idle, bank 2 / Adaptive heated oxygen sensor (H02S) control, bank 2 - signal low / - implausible signalFuel pressure, injectors, air intake restricted / Wiring, short to ground, H025, ECM / Wiring, short to positive, short to ground, H02S, ECM
P2191System too lean at higher load, bank 1Fuel pressure, injectors, intake leak
P2192System too rich at higher load, bank 1 Fuel pressure, injectors, air intake restricted
P2193System too lean at higher load, bank 2Fuel pressure, injectors, intake leak
P2194System too rich at higher load, bank 2Fuel pressure, injectors, air intake restricted
P2195Heated oxygen sensor (H02S) 1, bank 1 - signal stuck lean H02S, fuel pressure, injectors, intake leak
P2196Heated oxygen sensor (H02S) 1, bank 1 - signal stuck rich H02S, fuel pressure, injectors, air intake restricted
P2197Heated oxygen sensor (H02S) 1, bank 2- signal stuck lean / - implausible signalH02S, fuel pressure, injectors, intake leak / Wiring, short to positive, short to ground, H02S, ECM
P2198Heated oxygen sensor (H02S) 1, bank 2 - signal stuck richH02S, fuel pressure, injectors, air intake restricted
P2199Intake air temperature (IAT) sensor 1/2- correlationWiring, IAT sensor
P219AISO/SAE Reserved -
P21ACLong term fuel trim (LTFT), under load, bank 1 - richCatalytic converter, injector leakage, H02S
P21ADLong term fuel trim (LTFT), under load, bank 1 - leanCatalytic converter, exhaust leak, H02S
P21CCLong term fuel trim (LTFT), at idle, bank 1 - richCatalytic converter, injector leakage, H02S
P21CDLong term fuel trim (LTFT), at idle, bank 1 -leanCatalytic converter, exhaust leak, H02S
P21E0Long term fuel trim (LTFT), bank 1 - implausible signalWiring, injector, H02S
P21EBLong term fuel trim (LTFT), bank 1 -no signalWiring, injector, H02S
P21ECLong term fuel trim (LTFT), bank 1 - signal highWiring, short to power, injector, H02S
P21EDLong term fuel trim (LTFT), bank 1 -signal lowWiring, short to ground, injector, H02S
P21EE – P21FFISO/SAE Reserved -
P2200 – P2299 (Fuel and air metering – injector circuit)
P2200Nitrogen oxides (NOx) sensor, bank 1 - circuit malfunctionWiring, NOx sensor
P2201Nitrogen oxides (NOx) sensor, bank 1 - range/performance problemWiring, NOx sensor
P2202Nitrogen oxides (NOx) sensor, bank 1 - low inputWiring short to ground, NOx sensor
P2203Nitrogen oxides (NOx) sensor, bank 1 - high inputWiring short to positive, NOx sensor
P2204Nitrogen oxides (NOx) sensor, bank 1 - intermittent inputWiring, poor connection, NOx sensor
P2205Nitrogen oxides (NOx) sensor, bank 1, heater control - open circuitWiring, NOx sensor
P2206Nitrogen oxides (NOx) sensor, bank 1, heater control - circuit lowWiring short to ground, NOx sensor
P2207Nitrogen oxides (NOx) sensor, bank 1, heater control - circuit highWiring short to positive, NOx sensor
P2208Nitrogen oxides (NOx) sensor, bank 1, heater sense circuit - malfunctionWiring, NOx sensor
P2209Nitrogen oxides (NOx) sensor, bank 1, heater sense circuit - range/performance problemWiring, NOx sensor
P220AISO/SAE Reserved -
P220BISO/SAE Reserved -
P220CISO/SAE Reserved -
P220DISO/SAE Reserved -
P220EISO/SAE Reserved -
P220FISO/SAE Reserved -
P2210Nitrogen oxides (NOx) sensor, bank 1, heater sense circuit - low inputWiring short to ground, NOx sensor
P2211Nitrogen oxides (NOx) sensor, bank 1, heater sense circuit - high inputWiring short to positive, NOx sensor
P2212Nitrogen oxides (NOx) sensor, bank 1, heater sense circuit - circuit intermittentWiring, poor connection, NOx sensor
P2213Nitrogen oxides (NOx) sensor, bank 2 - circuit malfunctionWiring, NOx sensor
P2214Nitrogen oxides (NOx) sensor, bank 2 - range/performance problemWiring, NOx sensor
P2215Nitrogen oxides (NOx) sensor, bank 2 - low inputWiring short to ground, NOx sensor
P2216Nitrogen oxides (NOx) sensor, bank 2 - high inputWiring short to positive, NOx sensor
P2217Nitrogen oxides (NOx) sensor, bank 2 - intermittent inputWiring, poor connection, NOx sensor
P2218Nitrogen oxides (NOx) sensor, bank 2, heater control - open circuitWiring, NOx sensor
P2219Nitrogen oxides (NOx) sensor, bank 2, heater control - circuit lowWiring short to ground, NOx sensor
P221AISO/SAE Reserved -
P221BISO/SAE Reserved -
P221CISO/SAE Reserved -
P221DISO/SAE Reserved -
P221EISO/SAE Reserved -
P221FISO/SAE Reserved -
P2220Nitrogen oxides (NOx) sensor, bank 2, heater control - circuit highWiring short to positive, NOx sensor
P2221Nitrogen oxides (NOx) sensor, bank 2, heater sense circuit - circuit malfunctionWiring, NOx sensor
P2222Nitrogen oxides (NOx) sensor, bank 2, heater sense circuit - range/performance problemWiring, NOx sensor
P2223Nitrogen oxides (NOx) sensor, bank 2, heater sense circuit - circuit lowWiring short to ground, NOx sensor
P2224Nitrogen oxides (NOx) sensor, bank 2, heater sense circuit - circuit highWiring short to positive, NOx sensor
P2225Nitrogen oxides (NOx) sensor, bank 2, heater sense circuit - circuit intermittentWiring, poor connection, NOx sensor
P2226Barometric pressure (BARO) sensor- circuit malfunctionWiring, BARO sensor, ECM
P2227Barometric pressure (BARO) sensor- range/performance problemWiring, BARO sensor, ECM
P2228Barometric pressure (BARO) sensor- circuit lowWiring short to ground, BARO sensor, ECM
P2229Barometric pressure (BARO) sensor- circuit highWiring short to positive, BARO sensor, ECM
P222ABarometric Pressure Sensor "B" Circuit Range/Performance -
P222BBarometric Pressure Sensor "B" Circuit Low -
P222CBarometric Pressure Sensor "B" Circuit High -
P222DBarometric Pressure Sensor "B" Circuit Intermittent/Erratic -
P222EBarometric Pressure Sensor "A"/"B" Correlation -
P222FISO/SAE Reserved -
P2230Barometric pressure (BARO) sensor - circuit intermittentWiring, poor connection, BARO sensor, ECM
P2231Heated oxygen sensor (H028) 1, bank 1 - signal circuit shorted to heater circuit / - no signalWiring, H025 / Wiring, H025, ECM
P2232Heated oxygen sensor (H028) 2, bank 1 - signal circuit shorted to heater circuit / - implausible signalWiring, H025 / Wiring, short to positive, short to ground, H025, ECM
P2233Heated oxygen sensor (H028) 3, bank 1 - signal circuit shorted to heater circuitWiring, H025
P2234Heated oxygen sensor (H028) 1, bank 2 - signal circuit shorted to heater circuit / - no signalWiring, H025 / Wiring, H025, ECM
P2235Heated oxygen sensor (H02S) 2, bank 2 - signal circuit shorted to heater circuit / - implausible signalWiring, H025 / Wiring, short to positive, short to ground, H025, ECM
P2236Heated oxygen sensor (H028) 3, bank 2 - signal circuit shorted to heater circuitWiring, H025
P2237Heated oxygen sensor (H028) 1, bank 1, positive current control - open circuit / - open circuit / - no signalWiring, H025 / Wiring, H025, ECM
P2238Heated oxygen sensor (H028) 1, bank 1, positive current control - circuit low / - implausible signalWiring short to ground, H02S / Wiring, short to positive, short to ground, H025, ECM
P2239Heated oxygen sensor (H028) 1, bank 1, positive current control - circuit highWiring short to positive, H025
P223AISO/SAE Reserved -
P223BISO/SAE Reserved -
P223CISO/SAE Reserved -
P223DISO/SAE Reserved -
P223EISO/SAE Reserved -
P223FISO/SAE Reserved -
P2240Heated oxygen sensor (H028) 1, bank 2, positive current control - open circuit / - no signalWiring, H025 / Wiring, H025, ECM
P2241Heated oxygen sensor (H028) 1, bank 2, positive current control - circuit low / - implausible signalWiring short to ground, H025 / Wiring, short to positive, short to ground, H025, ECM
P2242Heated oxygen sensor (H028) 1, bank 2, positive current control - circuit highWiring short to positive, H025
P2243Heated oxygen sensor (H028) 1, bank 1, reference voltage - open circuit / -no signalWiring, H025 / Wiring, H025, ECM
P2244Heated oxygen sensor (H028) 1, bank 1, reference voltage - performance problemWiring, H025
P2245Heated oxygen sensor (H028) 1, bank 1, reference voltage - circuit lowWiring short to ground, H025
P2246Heated oxygen sensor (H028) 1, bank 1, reference voltage - circuit highWiring short to positive, H025
P2247Heated oxygen sensor (H028) 1, bank 2, reference voltage - open circuit / - no signalWiring, H025 / Wiring, H025, ECM
P2248Heated oxygen sensor (H02S) 1, bank 2, reference voltage - performance problemWiring, H025
P2249Heated oxygen sensor (H02S) 1, bank 2, reference voltage - circuit lowWiring short to ground, H025
P224AISO/SAE Reserved -
P224BISO/SAE Reserved -
P224CISO/SAE Reserved -
P224DISO/SAE Reserved -
P224EISO/SAE Reserved -
P224FBarometric Pressure Sensor "B" Circuit -
P224FISO/SAE Reserved -
P2250Heated oxygen sensor (H02S) 1, bank 2, reference voltage - circuit highWiring short to positive, H025
P2251Heated oxygen sensor (H02S) 1, bank 1, negative current control - open circuit / - no signalWiring, H025 / Wiring, H025, ECM
P2252Heated oxygen sensor (H02S) 1, bank 1, negative current control - circuit lowWiring short to ground, H025
P2253Heated oxygen sensor (H02S) 1, bank 1, negative current control - circuit highWiring short to positive, H025
P2254Heated oxygen sensor (H02S) 1, bank 2, negative current control - open circuit / - no signalWiring, H025 / Wiring, H025, ECM
P2255Heated oxygen sensor (H02S) 1, bank 2, negative current control - circuit lowWiring short to ground, H025
P2256Heated oxygen sensor (H02S) 1, bank 2, negative current control - circuit highWiring short to positive, H025
P2257Secondary air injection (AIR) system, control A - circuit lowWiring short to ground, AIR pump relay, AIR pump, AIR solenoid
P2258Secondary air injection (AIR) system, control A - circuit highWiring short to positive, AIR pump relay, AIR pump, AIR solenoid
P2259Secondary air injection (AIR) system, control B - circuit lowWiring short to ground, AIR pump relay, AIR pump, AIR solenoid
P225AISO/SAE Reserved -
P225BISO/SAE Reserved -
P225CISO/SAE Reserved -
P225DISO/SAE Reserved -
P225EISO/SAE Reserved -
P225FISO/SAE Reserved -
P2260Secondary air injection (AIR) system, control B - circuit highWiring short to positive, AIR pump relay, AIR pump, AIR solenoid
P2261Turbocharger (TC) bypass valve/supercharger (8C) bypass valveMechanical fault
P2262Turbocharger (TC) boost pressure not detectedMechanical fault
P2263Turbocharger (TC) boost pressure/supercharger (8C) boost pressure - performance problemMechanical fault
P2264Fuel/water separator sensor- circuit malfunctionWiring, fuel/water separator sensor
P2265Fuel/water separator sensor- range/performance problemWiring, fuel/water separator sensor
P2266Fuel/water separator sensor - circuit lowWiring short to ground, fuel/water separator sensor
P2267Fuel/water separator sensor- circuit highWiring short to positive, fuel/water separator sensor
P2268Fuel/water separator sensor - circuit intermittentWiring, poor connection, fuel/water separator sensor
P2269Water in fuelWater in fuel
P226AWater-in-fuel warning lamp - circuit malfunctionWiring, warning lamp, ECM
P226BTurbocharger/Supercharger Boost Pressure Too High - Mechanical -
P226CISO/SAE Reserved -
P226DISO/SAE Reserved -
P226EISO/SAE Reserved -
P226FISO/SAE Reserved -
P2270Heated oxygen sensor (H028) 2, bank 1 - signal stuck leanWiring, H025, fuel pressure, injectors, intake leak
P2271Heated oxygen sensor (H02S) 2, bank 1 - signal stuck richWiring, H025, fuel pressure, injectors, air intake restricted
P2272Heated oxygen sensor (H02S) 2, bank 2 - signal stuck leanWiring, H025, fuel pressure, injectors, intake leak
P2273Heated oxygen sensor (H028) 2, bank 2 - signal stuck richWiring, H025, fuel pressure, injectors, air intake restricted
P2274Heated oxygen sensor (H028) 3, bank 1 - signal stuck leanWiring, H025, fuel pressure, injectors, intake leak
P2275Heated oxygen sensor (H028) 3, bank 1 - signal stuck richWiring, H025, fuel pressure, injectors, air intake restricted
P2276Heated oxygen sensor (H02S) 3, bank 2 - signal stuck leanWiring, H025, fuel pressure, injectors, intake leak
P2277Heated oxygen sensor (H028) 3, bank 2 - signal stuck richWiring, H025, fuel pressure, injectors, air intake restricted
P2278Heated oxygen sensor (H028) 3, bank 1/heated oxygen sensor (H028) 3, bank 2 - signals transposedWiring
P2279Intake air leakMechanical fault
P227AISO/SAE Reserved -
P227BISO/SAE Reserved -
P227CISO/SAE Reserved -
P227DISO/SAE Reserved -
P227EISO/SAE Reserved -
P227FISO/SAE Reserved -
P2280Air leak/blockage between air filter and mass air flow (MAF) sensorMechanical fault
P2281Air leak between mass air flow (MAF) sensor and throttle body / Turbocharger (TC) boost control position sensor - circuit malfunction / Engine blower fan - no signalMechanical fault / Wiring, short to positive, short to ground, TC boost control position sensor / Wiring, engine blower fan, engine blower fan relay, ECM
P2282Air leak between throttle body and intake valvesMechanical fault
P2283Injector control pressure sensor - circuit malfunctionWiring, injector control pressure sensor
P2284Injector control pressure sensor - range/performance problemWiring, injector control pressure sensor
P2285Injector control pressure sensor - circuit lowWiring short to ground, injector control pressure sensor
P2286Injector control pressure sensor - circuit highWiring short to positive, injector control pressure sensor
P2287Injector control pressure sensor - circuit intermittentWiring, poor connection, injector control pressure sensor
P2288Injector control pressure- pressure too highFuel pressure regulator, injector control pressure sensor
P2289Injector control pressure, engine off- pressure too highFuel pressure regulator
P228AFuel Pressure Regulator 1 - Forced Engine Shutdown -
P228BFuel Pressure Regulator 2 - Forced Engine Shutdown -
P228CFuel Pressure Regulator 1 Exceeded Control Limits - Pressure Too Low -
P228DFuel Pressure Regulator 1 Exceeded Control Limits - Pressure Too High -
P228EFuel Pressure Regulator 1 Exceeded Learning Limits - Too Low -
P228FFuel Pressure Regulator 1 Exceeded Learning Limits - Too High -
P2290Injector control pressure - pressure too lowFuel pressure regulator, injector control pressure sensor
P2291Injector control pressure, engine cranking - pressure too lowFuel pressure regulator, injector control pressure sensor
P2292Injector control pressure - erraticFuel pressure regulator, injector control pressure sensor
P2293Fuel pressure regulator 2 - performance problemWiring, fuel pressure regulator
P2294Fuel pressure regulator 2 - circuit malfunctionWiring, fuel pressure regulator
P2295Fuel pressure regulator 2 - circuit lowWiring short to ground, fuel pressure regulator
P2296Fuel pressure regulator 2 - circuit highWiring short to positive, fuel pressure regulator
P2297Heated oxygen sensor (H028) 1, bank 1 - signal out of range during decelerationH025, intake leak, exhaust leak, injectors
P2298Heated oxygen sensor (H02S) 1, bank 2 - signal out of range during decelerationH02S, intake leak, exhaust leak, injectors
P2299Brake pedal position (BPP) switch/accelerator pedal position (APP) sensor- signals incompatibleWiring, BPP switch, APP sensor
P229AFuel Pressure Regulator 2 Exceeded Control Limits - Pressure Too Low -
P229BFuel Pressure Regulator 2 Exceeded Control Limits - Pressure Too High -
P229CFuel Pressure Regulator 2 Exceeded Learning Limits - Too Low -
P229DFuel Pressure Regulator 2 Exceeded Learning Limits - Too High -
P229E – P22FFISO/SAE Reserved -
P2300 – P2399 (Ignition system or misfire)
P2300Ignition coil A, primary circuit - circuit lowWiring short to ground, ignition coil
P2301Ignition coil A, primary circuit - circuit highWiring short to positive, ignition coil
P2302Ignition coil A, secondary circuit - malfunctionWiring, ignition coil
P2303Ignition coil B, primary circuit - circuit lowWiring short to ground, ignition coil
P2304Ignition coil B, primary circuit- circuit highWiring short to positive, ignition coil
P2305Ignition coil B, secondary circuit - malfunctionWiring, ignition coil
P2306Ignition coil C, primary circuit - circuit lowWiring short to ground, ignition coil
P2307Ignition coil C, primary circuit - circuit highWiring short to positive, ignition coil
P2308Ignition coil C, secondary circuit - malfunctionWiring, ignition coil
P2309Ignition coil D, primary circuit- circuit lowWiring short to ground, ignition coil
P230AISO/SAE Reserved -
P230BISO/SAE Reserved -
P230CISO/SAE Reserved -
P230DISO/SAE Reserved -
P230EISO/SAE Reserved -
P230FISO/SAE Reserved -
P2310Ignition coil D, primary circuit - circuit highWiring short to positive, ignition coil
P2311Ignition coil D, secondary circuit- malfunctionWiring, ignition coil
P2312Ignition coil E, primary circuit - circuit lowWiring short to ground, ignition coil
P2313Ignition coil E. primary circuit - circuit highWiring short to positive, ignition coil
P2314Ignition coil E, secondary circuit - malfunctionWiring, ignition coil
P2315Ignition coil F, primary circuit - circuit lowWiring short to ground, ignition coil
P2316Ignition coil F, primary circuit - circuit highWiring short to positive, ignition coil
P2317Ignition coil F, secondary circuit - malfunctionWiring, ignition coil
P2318Ignition coil G, primary circuit - circuit lowWiring short to ground, ignition coil
P2319Ignition coil G, primary circuit- circuit highWiring short to positive, ignition coil
P231AISO/SAE Reserved -
P231BISO/SAE Reserved -
P231CISO/SAE Reserved -
P231DISO/SAE Reserved -
P231EISO/SAE Reserved -
P231FISO/SAE Reserved -
P2320Ignition coil G, secondary circuit - malfunctionWiring, ignition coil
P2321Ignition coil H, primary circuit - circuit lowWiring short to ground, ignition coil
P2322Ignition coil H, primary circuit - circuit highWiring short to positive, ignition coil
P2323Ignition coil H, secondary circuit- malfunctionWiring, ignition coil
P2324Ignition coil I, primary circuit- circuit lowWiring short to ground, ignition coil
P2325Ignition coil I, primary circuit- circuit highWiring short to positive, ignition coil
P2326Ignition coil I, secondary circuit- malfunctionWiring, ignition coil
P2327Ignition coil J, primary circuit- circuit lowWiring short to ground, ignition coil
P2328Ignition coil J, primary circuit - circuit highWiring short to positive, ignition coil
P2329Ignition coil J, secondary circuit- malfunctionWiring, ignition coil
P232AISO/SAE Reserved -
P232BISO/SAE Reserved -
P232CISO/SAE Reserved -
P232DISO/SAE Reserved -
P232EISO/SAE Reserved -
P232FISO/SAE Reserved -
P2330Ignition coil K, primary circuit - circuit lowWiring short to ground, ignition coil
P2331Ignition coil K, primary circuit - circuit highWiring short to positive, ignition coil
P2332Ignition coil K, secondary circuit - malfunctionWiring, ignition coil
P2333Ignition coil L, primary circuit - circuit lowWiring short to ground, ignition coil
P2334Ignition coil L, primary circuit - circuit highWiring short to positive, ignition coil
P2335Ignition coil L, secondary circuit - malfunctionWiring, ignition coil
P2336Cylinder 1 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2337Cylinder 2 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2338Cylinder 3 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2339Cylinder 4 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P233AISO/SAE Reserved -
P233BISO/SAE Reserved -
P233CISO/SAE Reserved -
P233DISO/SAE Reserved -
P233EISO/SAE Reserved -
P233FISO/SAE Reserved -
P2340Cylinder 5 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2341Cylinder 6 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2342Cylinder 7 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2343Cylinder 8 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2344Cylinder 9 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2345Cylinder 10 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2346Cylinder 11 - above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2347Cylinder 12- above knock thresholdIgnition timing, knock sensor (KS), fuel quality, mechanical fault
P2348 – P23FFISO/SAE Reserved -
P2400 – P2499 (Emission control)
P2400Evaporative emission (EVAP) leak detection pump, control - open circuitWiring, EVAP leak detection pump
P2401Evaporative emission (EVAP) leak detection pump, control - circuit lowWiring short to ground, EVAP leak detection pump
P2402Evaporative emission (EVAP) leak detection pump, control - circuit highWiring short to positive, EVAP leak detection pump
P2403Evaporative emission (EVAP) leak detection pump, sense circuit - open circuitWiring, EVAP leak detection pump
P2404Evaporative emission (EVAP) leak detection pump, sense circuit - range/performance problemWiring, EVAP leak detection pump
P2405Evaporative emission (EVAP) leak detection pump, sense circuit - circuit lowWiring short to ground, EVAP leak detection pump
P2406Evaporative emission (EVAP) leak detection pump, sense circuit- circuit highWiring short to positive, EVAP leak detection pump
P2407Evaporative emission (EVAP) leak detection pump, sense circuit - circuit intermittent/erraticWiring, poor connection, EVAP leak detection pump
P2408Fuel filler cap warning sensor/switch - circuit malfunctionWiring, fuel filler cap warning sensor/switch
P2409Fuel filler cap warning sensor/switch - range/performance problemWiring, fuel filler cap warning sensor/switch
P240AEvaporative emission (EVAP) leak detection pump heater - open circuitWiring, EVAP leak detection pump heater, ECM
P240BEvaporative emission (EVAP) leak detection pump heater - circuit lowWiring, EVAP leak detection pump heater, ECM
P240CEvaporative emission (EVAP) leak detection pump heater - circuit highWiring, EVAP system leak detection pump heater, ECM
P240DISO/SAE Reserved -
P240EISO/SAE Reserved -
P240FISO/SAE Reserved -
P2410Fuel filler cap warning sensor/switch - circuit lowWiring short to ground, fuel filler cap warning sensor/switch
P2411Fuel filler cap warning sensor/switch - circuit highWiring short to positive, fuel filler cap warning sensor/switch
P2412Fuel filler cap warning sensor/switch - circuit intermittent/erraticWiring, poor connection, fuel filler cap warning sensor/switch
P2413Exhaust gas recirculation (EGR) system - performance problemHoses blocked/leaking, EGR solenoid, EGR valve
P2414Heated oxygen sensor (H02S) 1, bank 1 - exhaust sample error / - implausible signalExhaust leak, H02S / Wiring, short to positive, shrot to ground, H02S, ECM
P2415Heated oxygen sensor (H02S) 1, bank 2 - exhaust sample error / Engine coolant temperature (ECT) sensor - low signalExhaust leak, H02S / Wiring, short to ground, ECT sensor, ECM
P2416Heated oxygen sensor (H02S) 2, bank 1/heated oxygen sensor (H02S) 3, bank 1 - signals transposedWiring
P2417Heated oxygen sensor (H02S) 2, bank 2/heated oxygen sensor (H02S) 3, bank 2 - signals transposedWiring
P2418Evaporative emission (EVAP) switching valve - open circuitWiring, EVAP switching valve
P2419Evaporative emission (EVAP) switching valve - circuit lowWiring short to ground, EVAP switching valve
P241AISO/SAE Reserved -
P241BISO/SAE Reserved -
P241CISO/SAE Reserved -
P241DISO/SAE Reserved -
P241EISO/SAE Reserved -
P241FISO/SAE Reserved -
P2420Evaporative emission (EVAP) switching valve - circuit highWiring short to positive, EVAP switching valve
P2421Evaporative emission (EVAP) vent valve - valve stuck openEVAP vent valve
P2422Evaporative emission (EVAP) vent valve - valve stuck closedEVAP vent valve
P2423Hydrocarbon (HC) catalytic converter, bank 1 - efficiency below thresholdHC catalytic converter
P2424Hydrocarbon (HC) catalytic converter, bank 2 - efficiency below thresholdHC catalytic converter
P2425Exhaust gas recirculation (EGR) cooling valve - open circuitWiring, EGR cooling valve
P2426Exhaust gas recirculation (EGR) cooling valve - circuit lowWiring short to ground, EGR cooling valve
P2427Exhaust gas recirculation (EGR) cooling valve - circuit highWiring short to positive, EGR cooling valve
P2428Exhaust gas temperature (EGT), bank 1 - temperature too high-
P2429Exhaust gas temperature (EGT), bank 2 - temperature too high-
P242AExhaust gas temperature sensor 3, bank 1 -circuit malfunctionWiring, exhaust gas temperature sensor, ECM
P242BExhaust gas temperature sensor 3, bank 1 -circuit range/performanceWiring, exhaust gas temperature sensor, ECM
P242CExhaust gas temperature sensor 3, bank 1 -circuit lowWiring, exhaust gas temperature sensor, ECM
P242DExhaust gas temperature sensor 3, bank 1 -circuit highWiring, exhaust gas temperature sensor, ECM
P242EExhaust gas temperature sensor 3, bank 1 -circuit intermittent/erraticWiring, exhaust gas temperature sensor, ECM
P242FDiesel particulate filter (DPF) - restriction/ash accumulationDPF
P2430Secondary air injection (AIR) system, air flow/pressure sensor, bank 1 - circuit malfunctionWiring, air flow/pressure sensor
P2431Secondary air injection (AIR) system, air flow/ pressure sensor, bank 1 - range/performance problemWiring, air flow/pressure sensor
P2432Secondary air injection (AIR) system, air flow/ pressure sensor, bank 1 - circuit lowWiring short to ground, air flow/pressure sensor
P2433Secondary air injection (AIR) system, air flow/pressure sensor, bank 1 - circuit highWiring short to positive, air flow/pressure sensor
P2434Secondary air injection (AIR) system, air flow/ pressure sensor, bank 1 - circuit intermittent/ erraticWiring, poor connection, air flow/pressure sensor
P2435Secondary air injection (AIR) system, air flow/pressure sensor, bank 2 - circuit malfunctionWiring, air flow/pressure sensor
P2436Secondary air injection (AIR) system, air flow/ pressure sensor, bank 2 - range/performance problemWiring, air flow/pressure sensor
P2437Secondary air injection (AIR) system, air flow/pressure sensor, bank 2 - circuit lowWiring short to ground, air flow/pressure sensor
P2438Secondary air injection (AIR) system, air flow/pressure sensor, bank 2 - circuit highWiring short to positive, air flow/pressure sensor
P2439Secondary air injection (AIR) system, air flow/ pressure sensor, bank 2 - circuit intermittent/ erraticWiring, poor connection, air flow/pressure sensor
P243AISO/SAE Reserved -
P243BISO/SAE Reserved -
P243CISO/SAE Reserved -
P243DISO/SAE Reserved -
P243EISO/SAE Reserved -
P243FISO/SAE Reserved -
P2440Secondary air injection (AIR) switching valve, bank 1 - valve stuck openAIR switching valve
P2441Secondary air injection (AIR) switching valve, bank 1 - valve stuck closedAIR switching valve
P2442Secondary air injection (AIR) switching valve, bank 2 - valve stuck openAIR switching valve
P2443Secondary air injection (AIR) switching valve, bank 2 - valve stuck closedAIR switching valve
P2444Secondary air injection (AIR) pump, bank 1 - pump stuck onAIR pump
P2445Secondary air injection (AIR) pump, bank 1 - pump stuck offAIR pump
P2446Secondary air injection (AIR) pump, bank 2 - pump stuck onAIR pump
P2447Secondary air injection (AIR) pump, bank 2 - pump stuck offAIR pump
P244ADiesel particulate filter (DPF) - differential pressure too low-
P244BDiesel particulate filter (DPF) - differential pressure too highDPF regeneration fluid, Large exhaust leaks, DPF pressure sensor, Open or shorted circuit/s
P244CDiesel particulate filter (DPF), bank 1 - exhaust temperature too low for regeneration-
P244DDiesel particulate filter (DPF), bank 1 - exhaust temperature too high for regeneration-
P244EDiesel particulate filter (DPF), bank 2 - exhaust temperature too low for regeneration-
P244FDiesel particulate filter (DPF), bank 2 - exhaust temperature too high for regeneration-
P2450Evaporative Emission System Switching Valve Performance/Stuck Open
P2452Diesel Particulate Filter Pressure Sensor "A" Circuit
P2455Diesel Particulate Filter Pressure Sensor "A" Circuit High
P2458Diesel Particulate Filter Regeneration Duration-
P245AExhaust gas recirculation (EGR) cooler bypass valve - control circuit malfunctionWiring, EGR cooler bypass valve, ECM
P245BExhaust gas recirculation (EGR) cooler bypass valve - control circuit range/performance / Heated oxygen sensor (H02S) 1, bank 1 - no signalWiring, EGR cooler bypass valve, ECM / Wiring, H02S, ECM
P245CExhaust gas recirculation (EGR) cooler bypass valve - control circuit low / Heated oxygen sensor (H02S) 1, bank 1 - signal high, heater circuitWiring, EGR cooler bypass valve, ECM / Wiring, short to positive, H02S, ECM
P245DExhaust gas recirculation (EGR) cooler bypass valve - control circuit high / Heated oxygen sensor (H02S) 1, bank 1 - signal lowWiring, EGR cooler bypass valve, ECM / Wiring, short to ground, H02S, ECM
P245EDiesel particulate filter (DPF) pressure sensor B - circuit malfunctionWiring, DPF pressure sensor, ECM
P245FDiesel particulate filter (DPF) pressure differential sensor 8 - circuit range/performanceWiring, DPF pressure differential sensor, ECM
P2460Diesel Particulate Filter Pressure Sensor "B" Circuit Low -
P2461Diesel Particulate Filter Pressure Sensor "B" Circuit High -
P2462Diesel Particulate Filter Pressure Sensor "B" Circuit Intermittent/Erratic -
P2463Diesel Particulate Filter Restriction - Soot AccumulationWiring, DPF pressure sensor, Pressure hoses, Wiring, Clogged DPF, SCR system malfunction, High or low exhaust temperature, Defective EGR valve / circuit, Low fuel, PCM failure
P2464Diesel Particulate Filter Differential Pressure Too Low Bank 2 -
P2465Diesel Particulate Filter Differential Pressure Too High Bank 2 -
P2466Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 3 -
P2467Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 3 -
P2468Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 3 -
P2469Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 3 -
P246AExhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 2 Sensor 3 -
P246BVehicle Conditions Incorrect for Diesel Particulate Filter Regeneration -
P246CDiesel Particulate Filter Restriction - Forced Limited Power -
P246DDiesel Particulate Filter Pressure Sensor "A"/"B" Correlation -
P246EExhaust Gas Temperature Sensor Circuit Bank 1 Sensor 4 -
P246FExhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 4 -
P2470Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 4 -
P2471Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 4 -
P2472Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 4 -
P2473Exhaust Gas Temperature Sensor Circuit Bank 2 Sensor 4 -
P2474Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 4 -
P2475Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 4 -
P2476Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 4 -
P2477Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 2 Sensor 4 -
P2478Exhaust Gas Temperature Out of Range Bank 1 Sensor 1 -
P2479Exhaust Gas Temperature Out of Range Bank 1 Sensor 2 -
P247AExhaust Gas Temperature Out of Range Bank 1 Sensor 3 -
P247BExhaust Gas Temperature Out of Range Bank 1 Sensor 4 -
P247CExhaust Gas Temperature Out of Range Bank 2 Sensor 1 -
P247DExhaust Gas Temperature Out of Range Bank 2 Sensor 2 -
P247EExhaust Gas Temperature Out of Range Bank 2 Sensor 3 -
P247FExhaust Gas Temperature Out of Range Bank 2 Sensor 4 -
P2480Exhaust Gas Temperature Sensor Circuit/Open Bank 1 Sensor 5 -
P2481Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 5 -
P2482Exhaust Gas Temperature Sensor Circuit High Bank 1 Sensor 5 -
P2483Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 5 -
P2484Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 1 Sensor 5 -
P2485Exhaust Gas Temperature Sensor Circuit/Open Bank 2 Sensor 5 -
P2486Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 5 -
P2487Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 5 -
P2488Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 2 Sensor 5 -
P2489Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic Bank 2 Sensor 5 -
P248A – P24FFISO/SAE Reserved -
P2500 – P2599 (Vehicle or idle speed control)
P2500Alternator warning lamp, L-terminal - circuit lowWiring short to ground, alternator, instrument panel
P2501Alternator warning lamp, L-terminal - circuit highWiring short to positive, alternator, instrument panel
P2502Charging system voltageWiring, alternator, battery
P2503Charging system - voltage lowWiring, alternator, battery
P2504Charging system - voltage highWiring, alternator, battery
P2505Engine control module (ECM) - supply voltageWiring, fuses, engine control (EC) relay
P2506Engine control module (ECM) - supply voltage, range/performance problemWiring, fuses, engine control (EC) relay
P2507Engine control module (ECM)- supply voltage lowWiring short to ground, fuses, engine control (EC) relay
P2508Engine control module (ECM) - supply voltage highCharging system
P2509Engine control module (ECM) - supply voltage, intermittentWiring, fuses, engine control (EC) relay
P250AEngine oil level sensor - circuit malfunctionWiring, engine oil level sensor, ECM
P250ALong term fuel trim (LTFT)- range/performance problemCatalytic converter, exhaust leak, injector leakage, H025
P250BEngine oil level sensor- circuit range/performanceWiring, engine oil level sensor, ECM
P250CEngine oil level sensor- circuit lowWiring, engine oil level sensor, ECM
P250DEngine oil level sensor - circuit highWiring, engine oil level sensor, ECM
P250EEngine oil level sensor - circuit intermittent/erraticWiring, engine oil level sensor, ECM
P250FEngine oil level too lowWiring, engine oil level, ECM
P2510Engine control (EC) relay, sense circuit - range/performance problemWiring, fuses, EC relay
P2510Power take-off (PTO), engine shut-down - open circuitWiring, ECM
P2511Engine control (EC) relay, sense circuit - circuit intermittentWiring, poor connection, EC relay
P2512Event data recorder request - open circuitWiring
P2513Event data recorder request - circuit lowWiring short to ground
P2514Event data recorder request - circuit highWiring short to positive
P2515A/C refrigerant pressure sensor B - circuit malfunctionWiring, AJC refrigerant pressure sensor
P2516A/C refrigerant pressure sensor B - range/performance problemWiring, AJC refrigerant pressure sensor
P2517AIC refrigerant pressure sensor B - circuit lowWiring short to ground, AIC refrigerant pressure sensor
P2518A/C refrigerant pressure sensor B - circuit highWiring short to positive, AIC refrigerant pressure sensor
P2519A/C request A - circuit malfunctionWiring, AIC control module, AJC master switch, AJC refrigerant pressure switch/sensor
P251APower take-off (PTO) enable switch - open circuitWiring, PTO enable switch, ECM
P251BPower take-off (PTO) enable switch - circuit lowWiring, PTO enable switch, ECM
P251CPower take-off (PTO) enable switch - circuit highWiring, PTO enable switch, ECM
P251EPower take-off (PTO)- engine shut-down- circuit lowWiring, ECM
P251FPower take-off (PTO) monitoring, engine shut-off control - circuit highWiring, ECM
P2520AJC request A - circuit lowWiring short to ground, AJC control module, AJC master switch, AJC refrigerant pressure switch/sensor
P2521AJC request A - circuit highWiring short to positive, AJC control module
P2522AJC request B - circuit malfunctionWiring, AJC control module, AJC master switch, AJC refrigerant pressure switch/sensor
P2523AJC request B - circuit lowWiring short to ground, AJC control module, AJC master switch, AJC refrigerant pressure switch/sensor
P2524AJC request B - circuit highWiring short to positive, AJC control module
P2525Vacuum reservoir pressure sensor - circuit malfunctionWiring, vacuum reservoir pressure sensor
P2526Vacuum reservoir pressure sensor - range/performance problemWiring, vacuum reservoir pressure sensor, hoses blocked/leaking
P2527Vacuum reservoir pressure sensor- circuit lowWiring short to ground, vacuum reservoir pressure sensor
P2528Vacuum reservoir pressure sensor - circuit highWiring short to positive, vacuum reservoir pressure sensor
P2529Vacuum reservoir pressure sensor - circuit intermittentWiring, poor connection, vacuum reservoir pressure sensor
P252AEngine oil quality sensor - circuit malfunctionWiring, engine oil quality sensor, ECM
P252BEngine oil quality sensor - circuit range/performanceWiring, engine oil quality sensor, ECM
P252CEngine oil quality sensor - circuit lowWiring, engine oil quality sensor, ECM
P252DEngine oil quality sensor - circuit highWiring, engine oil quality sensor, ECM
P252EEngine oil quality sensor - circuit intermittent/erraticWiring, engine oil quality sensor, ECM
P252FEngine oil level too highEngine oil level
P2530Ignition switch, ON position - circuit malfunctionWiring, fuse, ignition switch
P2531Ignition switch, ON position - circuit lowWiring short to ground, fuse, ignition switch
P2532Ignition switch, ON position - circuit highWiring short to positive, fuse, ignition switch
P2533Ignition switch, ON/start position -circuit malfunctionWiring, fuse, ignition switch
P2534Ignition switch, ON/start position - circuit lowWiring short to ground, fuse, ignition switch
P2535Ignition switch, ON/start position - circuit highWiring short to positive, fuse, ignition switch
P2536Ignition switch, accessory position - circuit malfunctionWiring, fuse, ignition switch
P2537Ignition switch, accessory position - circuit lowWiring short to ground, fuse, ignition switch
P2538Ignition switch, accessory position - circuit highWiring short to positive, fuse, ignition switch
P2539Fuel low pressure sensor - circuit malfunctionWiring, fuel low pressure sensor
P253APower take-off (PTO) monitoring - circuit openWiring, ECM
P253BPower take-off (PTO) monitoring- circuit range/performanceWiring, ECM
P253CPower take-off (PTO) monitoring- circuit lowWiring, ECM
P253DPower take-off (PTO) monitoring- circuit highWiring, ECM
P253EPower take-off (PTO) - sense circuit intermittent malfunction-
P253FEngine oil deterioratedEngine oil
P2540Fuel low pressure sensor - range/performance problemWiring, fuel low pressure sensor
P2541Fuel low pressure sensor- circuit lowWiring short to ground, fuel low pressure sensor
P2542Fuel low pressure sensor - circuit highWiring short to positive, fuel low pressure sensor
P2543Fuel low pressure sensor- circuit intermittentWiring, poor connection, fuel low pressure sensor
P2544Torque management request, input signal A - malfunction ·Wiring, ECM, TCM
P2545Torque management request, input signal A - range/performance problemWiring, ECM, TCM
P2546Torque management request, input signal A - signal lowWiring short to ground, ECM, TCM
P2547Torque management request, input signal A - signal highWiring short to positive, ECM, TCM
P2548Torque management request, input signal B - malfunctionWiring, ECM, TCM
P2549Torque management request, input signal B - range/performance problemWiring, ECM, TCM
P254APower take-off (PTO) speed selector sensor/switch 1 - open circuitWiring, PTO speed selector sensor/switch, ECM
P254BPower take-off (PTO) speed selector sensor/switch 1 - circuit range/performanceWiring, PTO speed selector sensor/switch, ECM
P254CPower take-off (PTO) speed selector sensor/switch 1 - circuit lowWiring, PTO speed selector sensor/switch, ECM
P254DPower take-off (PTO) speed selector sensor/switch 1 - circuit highWiring, PTO speed selector sensor/switch, ECM
P254EPower take-off (PTO) speed selector sensor/switch 1 - circuit intermittent/erraticWiring, PTO speed selector sensor/switch,ECM
P254FBonnet switch - open circuitWiring, bonnet switch, ECM
P2550Torque management request, input signal B - signal lowWiring short to ground, ECM, TCM
P2551Torque management request, input signal B - signal highWiring short to positive, ECM, TCM
P2552Throttle/fuel inhibit - circuit malfunctionWiring
P2553Throttle/fuel inhibit - range/performance problemWiring
P2554Throttle/fuel inhibit - circuit lowWiring short to ground
P2555Throttle/fuel inhibit - circuit highWiring short to positive
P2556Engine coolant 'low' sensor/switch - circuit malfunctionWiring, engine coolant 'low' sensor/switch
P2557Engine coolant 'low' sensor/switch - range/performance problemWiring, engine coolant 'low' sensor/switch
P2558Engine coolant 'low' sensor/switch - circuit lowWiring short to ground, engine coolant 'low' sensor/switch
P2558Power take-off (PTO) speed selector sensor/switch 2 - circuit range/performanceWiring, PTO speed selector sensor/switch, ECM
P2559Engine coolant 'low' sensor/switch - circuit highWiring short to positive, engine coolant 'low' sensor/switch
P255APower take-off (PTO) speed selector sensor/switch 2 - open circuitWiring, PTO speed selector sensor/switch, ECM
P255CPower take-off (PTO) speed selector sensor/switch 2 - circuit lowWiring, PTO speed selector sensor/switch, ECM
P255DPower take-off (PTO) speed selector sensor/switch 2 - circuit highWiring, PTO speed selector sensor/switch, ECM
P255EPower take-off (PTO) speed selector sensor/switch 2 - circuit intermittent/erraticWiring, PTO speed selector sensor/switch, ECM
P255FAJC request A - circuit range/performanceWiring, AJC control module, ECM
P2560Engine coolant level lowEngine coolant level low
P2561AJC control module - MIL activation requestedAIC control module trouble codes stored
P2562Turbocharger (TC) boost control position sensor - circuit malfunctionWiring, TC boost control position sensor
P2563Turbocharger (TC) boost control position sensor- range/performance problemWiring, TC boost control position sensor
P2564Turbocharger (TC) boost control position sensor - circuit lowWiring short to ground, TC boost control position sensor
P2565Turbocharger {TC) boost control position sensor- circuit highWiring short to positive, TC boost control position sensor
P2566Turbocharger (TC) boost control position sensor - circuit intermittentWiring, poor connection, TC boost control position sensor
P2567Direct ozone reduction catalytic converter temperature sensor- circuit malfunctionWiring, direct ozone reduction catalytic converter temperature sensor
P2568Direct ozone reduction catalytic converter temperature sensor- range/performance problemWiring, direct ozone reduction catalytic converter temperature sensor
P2569Direct ozone reduction catalytic converter temperature sensor - circuit lowWiring short to ground, direct ozone reduction catalytic converter temperature sensor
P256AEngine idle speed selector sensor/switch - open circuitWiring, engine idle speed selector sensor/switch, ECM
P256BEngine idle speed selector sensor/switch - circuit range/performanceWiring, engine idle speed selector sensor/switch, ECM
P256CEngine idle speed selector sensor/switch - circuit lowWiring, engine idle speed selector sensor/switch, ECM
P256DEngine idle speed selector sensor/switch - circuit highWiring, engine idle speed selector sensor/switch, ECM
P256EEngine idle speed selector sensor/switch - circuit intermittent/erraticWiring, engine idle speed selector sensor/switch, ECM
P256FAIC request B - circuit range/performanceWiring, AJC control module, ECM
P2570Direct ozone reduction catalytic converter temperature sensor - circuit highWiring short to positive, direct ozone reduction catalytic converter temperature sensor
P2571Direct ozone reduction catalytic converter temperature sensor- circuit intermittent/erraticWiring, poor connection, direct ozone reduction catalytic converter temperature sensor
P2572Direct ozone reduction catalytic converter deterioration sensorWiring, direct ozone reduction catalytic converter deterioration sensor
P2573Direct ozone reduction catalytic converter deterioration sensor- range/performance problemWiring, direct ozone reduction catalytic converter deterioration sensor
P2574Direct ozone reduction catalytic converter deterioration sensor - circuit lowWiring short to ground, direct ozone reduction catalytic converter deterioration sensor
P2575Direct ozone reduction catalytic converter deterioration sensor - circuit highWiring short to positive, direct ozone reduction catalytic converter deterioration sensor
P2576Direct ozone reduction catalytic converter deterioration sensor - circuit intermittent/erraticWiring, poor connection, direct ozone reduction catalytic converter deterioration sensor
P2577Direct ozone reduction catalytic converter - efficiency below thresholdDirect ozone reduction catalytic converter
P2578Turbocharger Speed Sensor Circuit -
P2579Turbocharger Speed Sensor Circuit Range/Performance -
P257AVacuum reservoir control - open circuit-
P257BVacuum reservoir control - circuit low-
P257CVacuum reservoir control - circuit high-
P257DBonnet switch - circuit range/performanceWiring, bonnet switch, ECM
P257EBonnet switch - circuit lowWiring, bonnet switch, ECM
P257FBonnet switch - circuit highWiring, bonnet switch, ECM
P2580Turbocharger Speed Sensor Circuit Low -
P2581Turbocharger Speed Sensor Circuit High -
P2582Turbocharger Speed Sensor Circuit Intermittent -
P2583Cruise Control Front Distance Range Sensor -
P2584Fuel Additive Control Module Requested MIL Illumination -
P2585Fuel Additive Control Module Warning Lamp Request -
P2586Turbocharger Boost Control Position Sensor "B" Circuit -
P2587Turbocharger Boost Control Position Sensor "B" Circuit Range/Performance -
P2588Turbocharger Boost Control Position Sensor "B" Circuit Low -
P2589Turbocharger Boost Control Position Sensor "B" Circuit High -
P258AVacuum pump - control circuit openWiring, vacuum pump, ECM
P258BVacuum pump control - range/performance problemWiring, vacuum pump, ECM
P258CVacuum pump control - circuit lowWiring, vacuum pump, ECM
P258DVacuum pump - control circuit highWiring, vacuum pump, ECM
P258EPower take-off (PTO) enable switch- performance problemWiring, PTO enable switch, ECM
P258FTorque management request - output signal malfunctionWiring, TCM, ECM
P2590Turbocharger Boost Control Position Sensor "B" Circuit Intermittent/Erratic -
P2591Cruise Control Front Distance Range Sensor Left -
P2592Cruise Control Front Distance Range Sensor Right -
P2593 – P25FFISO/SAE Reserved -
P2600 – P2699 (ECM – computer output circuit)
P2600Engine coolant pump motor - open circuitWiring, engine coolant pump relay
P2601Engine coolant pump motor- range/performance problemWiring, engine coolant pump relay
P2602Engine coolant pump motor- circuit lowWiring short to ground, engine coolant pump relay
P2603Engine coolant pump motor - circuit highWiring short to positive, engine coolant pump relay
P2604Intake air heater A - range/performance problemWiring, intake air heater relay, intake air heater
P2605Intake air heater A - open circuitWiring, intake air heater relay, intake air heater
P2606Intake air heater B - range/performance problemWiring, intake air heater relay, intake air heater
P2607Intake air heater B - circuit lowWiring short to ground, intake air heater relay, intake air heater
P2608Intake air heater B - circuit highWiring short to positive, intake air heater relay, intake air heater
P2609Intake air heater system - performance problemWiring, intake air heater relay, intake air heater
P260APower take-off (PTO), control - open circuitWiring
P260BPower take-off (PTO), control - circuit lowWiring, ECM
P260CPower take-off (PTO) control - circuit high-
P260DPower take-off (PTO) engaged warning lamp - control circuitWiring, warning lamp, ECM
P260EDiesel Particulate Filter Regeneration Lamp Control Circuit -
P260FEvaporative emission (EVAP) system - monitoring processor performance problemECM
P2610Engine control module (ECM) - internal engine off timer performanceECM
P2611NC refrigerant distribution valve - open circuitWiring, NC refrigerant distribution valve
P2612NC refrigerant distribution valve - circuit lowWiring short to ground, NC refrigerant distribution valve
P2613NC refrigerant distribution valve - circuit highWiring short to positive, AIC refrigerant distribution valve
P2614Camshaft position (CMP), output signal - open circuitWiring, ECM
P2615Camshaft position (CMP), output signal - circuit lowWiring short to ground, ECM
P2616Camshaft position (CMP), output signal - circuit highWiring short to positive, ECM
P2617Crankshaft position (CKP), output signal - open circuitWiring, ECM
P2618Crankshaft position (CKP), output signal - circuit lowWiring short to ground, ECM
P2619Crankshaft position (CKP), output signal - circuit highWiring short to positive, ECM
P261ACoolant Pump "B" Control Circuit/Open -
P261BCoolant Pump "B" Control Circuit Range/Performance -
P261CCoolant Pump "B" Control Circuit Low -
P261DCoolant Pump "B" Control Circuit High -
P261EISO/SAE Reserved -
P261FISO/SAE Reserved -
P2620Throttle position (TP), output signal - open circuitWiring, ECM
P2621Throttle position (TP), output signal - circuit lowWiring short to ground, ECM
P2622Throttle position (TP), output signal - circuit highWiring short to positive, ECM
P2623Injector control pressure regulator- open circuitWiring, injector control pressure regulator
P2624Injector control pressure regulator- circuit lowWiring short to ground, injector control pressure regulator
P2625Injector control pressure regulator - circuit highWiring short to positive, injector control pressure regulator
P2626Heated oxygen sensor (H02S) 1, bank 1, pumping current trim - open circuit / - no signalWiring, H025, ECM
P2627Heated oxygen sensor (H02S) 1, bank 1, pumping current trim - circuit lowWiring short to ground, H025, ECM
P2628Heated oxygen sensor (H02S) 1, bank 1, pumping current trim - circuit highWiring short to positive, H025, ECM
P2629Heated oxygen sensor (H02S) 1, bank 2, pumping current trim - open circuit / - no signalWiring, H025, ECM
P262AISO/SAE Reserved -
P262BISO/SAE Reserved -
P262CISO/SAE Reserved -
P262DISO/SAE Reserved -
P262EISO/SAE Reserved -
P262FISO/SAE Reserved -
P2630Heated oxygen sensor (H02S) 1, bank 2, pumping current trim - circuit lowWiring short to ground, H025, ECM
P2631Heated oxygen sensor (H02S) 1, bank 2, pumping current trim - circuit highWiring short to positive, H025, ECM
P2632Fuel pump (FP) B, control - open circuitWiring, FP relay, ECM
P2633Fuel pump (FP) B, control - circuit lowWiring short to ground, FP relay, ECM
P2634Fuel pump (FP) B, control - circuit highWiring short to positive, FP relay, ECM
P2635Fuel pump (FP) A- low flow/performance problemFuel filter blocked, fuel pump (FP)
P2636Fuel pump (FP) B- low flow/performance problemFuel filter blocked, fuel pump (FP)
P2637Torque management, feedback signal A - malfunctionWiring, ECM, TCM
P2638Torque management, feedback signal A - range/performance problemWiring, ECM, TCM
P2639Torque management, feedback signal A - signal lowWiring short to ground, ECM, TCM
P263AISO/SAE Reserved -
P263BISO/SAE Reserved -
P263CISO/SAE Reserved -
P263DISO/SAE Reserved -
P263EISO/SAE Reserved -
P263FISO/SAE Reserved -
P2640Torque management, feedback signal A - signal highWiring short to positive, ECM, TCM
P2641Torque management, feedback signal B - malfunctionWiring, ECM, TCM
P2642Torque management, feedback signal B - range/performance problemWiring, ECM, TCM
P2643Torque management, feedback signal B - signal lowWiring short to ground, ECM, TCM
P2644Torque management, feedback signal B - signal highWiring short to positive, ECM, TCM
P2645Rocker arm actuator A, bank 1 - open circuitWiring, rocker arm actuator
P2646Rocker arm actuator A, bank 1 - performance problem or actuator stuck offWiring, rocker arm actuator
P2647Rocker arm actuator A, bank 1 - actuator stuck onRocker arm actuator
P2648Rocker arm actuator A, bank 1 - circuit lowWiring short to ground, rocker arm actuator
P2649Rocker arm actuator A, bank 1 - circuit highWiring short to positive, rocker arm actuator
P264ARocker arm actuator position sensor A, bank 1 - circuit malfunctionWiring, rocker arm actuator position sensor, ECM
P264BRocker arm actuator position sensor A, bank 1 - circuit range/performanceWiring, rocker arm actuator position sensor, ECM
P264CRocker arm actuator position sensor A, bank 1 - circuit lowWiring, rocker arm actuator position sensor, ECM
P264DRocker arm actuator position sensor A, bank 1 - circuit highWiring, rocker arm actuator position sensor, ECM
P264ERocker arm actuator position sensor A, bank 1 - circuit intermittent/erraticWiring, rocker arm actuator position sensor, ECM
P264FISO/SAE Reserved -
P2650Rocker arm actuator B, bank 1 - open circuitWiring, rocker arm actuator
P2651Rocker arm actuator B, bank 1 - performance problem or actuator stuck offRocker arm actuator
P2652Rocker arm actuator B, bank 1 -actuator stuck onRocker arm actuator
P2653Rocker arm actuator B, bank 1 - circuit lowWiring short to ground, rocker arm actuator
P2654Rocker arm actuator B, bank 1 - circuit highWiring short to positive, rocker arm actuator
P2655Rocker arm actuator A, bank 2 - open circuitWiring, rocker arm actuator
P2656Rocker arm actuator A, bank 2 - performance problem or actuator stuck offRocker arm actuator
P2657Rocker arm actuator A, bank 2 - actuator stuck onRocker arm actuator
P2658Rocker arm actuator A, bank 2 - circuit lowWiring short to ground, rocker arm actuator
P2659Rocker arm actuator A, bank 2 - circuit highWiring short to positive, rocker arm actuator
P265ARocker arm actuator position sensor B, bank 1 - circuit malfunctionWiring, rocker arm actuator position sensor, ECM
P265BRocker arm actuator position sensor B, bank 1 - circuit range/performanceWiring, rocker arm actuator position sensor, ECM
P265CRocker arm actuator position sensor B, bank 1 - circuit lowWiring, rocker arm actuator position sensor, ECM
P265DRocker arm actuator position sensor B, bank 1 - circuit highWiring, rocker arm actuator position sensor, ECM
P265ERocker arm actuator position sensor B, bank 1 - circuit intermittent/erraticWiring, rocker arm actuator position sensor, ECM
P265FISO/SAE Reserved -
P2660Rocker arm actuator B, bank 2 - open circuitWiring, rocker arm actuator
P2661Rocker arm actuator B, bank 2 - performance problem or actuator stuck offRocker arm actuator
P2662Rocker arm actuator B, bank 2- actuator stuck onRocker arm actuator
P2663Rocker arm actuator B, bank 2 - circuit lowWiring short to ground, rocker arm actuator
P2664Rocker arm actuator B, bank 2 -circuit highWiring short to positive, rocker arm actuator
P2665Fuel shut-off solenoid B - open circuitWiring, fuel shut-off solenoid
P2666Fuel shut-off solenoid B - circuit lowWiring short to ground, fuel shut-off solenoid
P2667Fuel shut-off solenoid B - circuit highWiring short to positive, fuel shut-off solenoid
P2668Fuel mode indicator lamp- circuit malfunctionWiring, fuel mode indicator lamp
P2669Actuator supply voltage B - open circuitWiring, ECM
P266ARocker arm actuator position sensor A, bank 2 - circuit malfunctionWiring, rocker arm actuator position sensor, ECM
P266BRocker arm actuator position sensor A, bank 2 - circuit range/performanceWiring, rocker arm actuator position sensor, ECM
P266C"A" Rocker Arm Actuator Position Sensor Circuit Low Bank 2 -
P266DRocker arm actuator position sensor A, bank 2 - circuit highWiring, rocker arm actuator position sensor, ECM
P266ERocker arm actuator position sensor A, bank 2 - circuit intermittent/erraticWiring, rocker arm actuator position sensor, ECM
P266FISO/SAE Reserved -
P2670Actuator supply voltage B - circuit lowWiring short to ground, ECM
P2671Actuator supply voltage B - circuit highWiring short to positive, ECM
P2672Injection Pump Timing Offset -
P2673Injection Pump Timing Calibration Not Learned -
P2674Injection Pump Fuel Calibration Not Learned -
P2675Air Cleaner Inlet Control Circuit/Open -
P2676Air Cleaner Inlet Control Circuit Low -
P2677Air Cleaner Inlet Control Circuit High -
P2678Coolant Degassing Valve Control Circuit/Open -
P2679Coolant Degassing Valve Control Circuit Low -
P267ARocker arm actuator position sensor B, bank 2 - circuit malfunctionWiring, rocker arm actuator position sensor, ECM
P267BRocker arm actuator position sensor B, bank 2 - circuit range/performanceWiring, rocker arm actuator position sensor, ECM
P267CRocker arm actuator position sensor B, bank 2 - circuit lowWiring, rocker arm actuator position sensor, ECM
P267DRocker arm actuator position sensor B, bank 2 - circuit highWiring, rocker arm actuator position sensor, ECM
P267ERocker arm actuator position sensor B, bank 2- circuit intermittent/erraticWiring, rocker arm actuator position sensor, ECM
P267FISO/SAE Reserved -
P2680Coolant Degassing Valve Control Circuit High -
P2681Engine Coolant Bypass Valve Control Circuit/Open -
P2682Engine Coolant Bypass Valve Control Circuit Low -
P2683Engine Coolant Bypass Valve Control Circuit High -
P2684Actuator Supply Voltage "C" Circuit/Open -
P2685Actuator Supply Voltage "C" Circuit Low -
P2686Actuator Supply Voltage "C" Circuit High -
P2687Fuel Supply Heater Control Circuit/Open -
P2688Fuel Supply Heater Control Circuit Low -
P2689Fuel Supply Heater Control Circuit High -
P268AInjector - calibration not learned/programmedCalibration not learned
P268BFuel high pressure pump- calibration not learned/programmedCalibration not learned
P268CInjector 1 - data incompatibleWiring, injector, ECM
P268DInjector 2 - data incompatibleWiring, injector, ECM
P268EInjector 3 - data incompatibleWiring, injector, ECM
P268FInjector 4 - data incompatibleWiring, injector, ECM
P2690Cylinder 5 Injector Data Incompatible -
P2691Cylinder 6 Injector Data Incompatible -
P2692Cylinder 7 Injector Data Incompatible -
P2693Cylinder 8 Injector Data Incompatible -
P2694Cylinder 9 Injector Data Incompatible -
P2695Cylinder 10 Injector Data Incompatible -
P2696Injector Data Incompatible -
P2697Exhaust Aftertreatment Fuel Injector "A" Circuit/Open -
P2698Exhaust Aftertreatment Fuel Injector "A" Performance -
P2699Exhaust Aftertreatment Fuel Injector "A" Circuit Low -
P269AExhaust Aftertreatment Fuel Injector "A" Circuit High -
P269BExhaust Aftertreatment Glow Plug Control Circuit/Open -
P269CExhaust Aftertreatment Glow Plug Control Performance -
P269DExhaust Aftertreatment Glow Plug Control Circuit Low -
P269EExhaust Aftertreatment Glow Plug Control Circuit High -
P269FExhaust Aftertreatment Glow Plug Circuit/Open -
P26A0Exhaust Aftertreatment Glow Plug Performance -
P26A1Exhaust Aftertreatment Glow Plug Circuit Low -
P26A2Exhaust Aftertreatment Glow Plug Circuit High -
P26A3 – P26FFISO/SAE Reserved -
P2700 – P2799 (Transmission)
P2700Transmission friction element A, apply time - range/performance problemTransmission mechanical fault, shift solenoid (SS)
P2701Transmission friction element B, apply time - range/performance problemTransmission mechanical fault, shift solenoid (SS)
P2702Transmission friction element C, apply time - range/performance problemTransmission mechanical fault, shift solenoid (SS)
P2703Transmission friction element D, apply time - range/performance problemTransmission mechanical fault, shift solenoid (SS)
P2704Transmission friction element E, apply time - range/performance problemTransmission mechanical fault, shift solenoid (SS)
P2705Transmission friction element F, apply time - range/performance problemTransmission mechanical fault, shift solenoid (SS)
P2706Shift solenoid (SS) F - circuit malfunctionTransmission mechanical fault, shift solenoid (55)
P2707Shift solenoid (SS) F- performance problem or solenoid stuck offTransmission mechanical fault, shift solenoid (55)
P2708Shift solenoid (SS) F - solenoid stuck onTransmission mechanical fault, shift solenoid (SS)
P2709Shift solenoid (SS) F -electricalWiring, shift solenoid (SS)
P270AISO/SAE Reserved -
P270BISO/SAE Reserved -
P270CISO/SAE Reserved -
P270DISO/SAE Reserved -
P270EISO/SAE Reserved -
P270FISO/SAE Reserved -
P2710Shift solenoid (SS) F - intermittentWiring, poor connection, shift solenoid (55)
P2711Unexpected mechanical gear disengagementOperator error, transmission mechanical fault
P2712Hydraulic power unit leakage-
P2713Transmission fluid pressure (TFP) solenoid D - circuit malfunctionWiring, TFP solenoid, TCM
P2714Transmission fluid pressure (TFP) solenoid D - performance problem or solenoid stuck offWiring, TFP solenoid, transmission mechanical fault
P2715Transmission fluid pressure (TFP) solenoid D - solenoid stuck onTFP solenoid, transmission mechanical fault
P2716Transmission fluid pressure (TFP) solenoid D - electricalWiring, TFP solenoid
P2717Transmission fluid pressure (TFP) solenoid D - circuit intermittentWiring, poor connection, TFP solenoid, TCM
P2718Transmission fluid pressure (TFP) solenoid D - open circuitWiring, TFP solenoid, TCM
P2719Transmission fluid pressure (TFP) solenoid D - range/performance problemTFP solenoid, transmission mechanical fault
P271AISO/SAE Reserved -
P271BISO/SAE Reserved -
P271CISO/SAE Reserved -
P271DISO/SAE Reserved -
P271EISO/SAE Reserved -
P271FISO/SAE Reserved -
P2720Transmission fluid pressure (TFP) solenoid D - circuit lowWiring short to ground, TFP solenoid, TCM
P2721Transmission fluid pressure (TFP) solenoid D - circuit highWiring short to positive, TFP solenoid, TCM
P2722Transmission fluid pressure (TFP) solenoid E - circuit malfunctionWiring, TFP solenoid, TCM
P2723Transmission fluid pressure (TFP) solenoid E - performance problem or solenoid stuck offWiring, TFP solenoid, transmission mechanical fault
P2724Transmission fluid pressure (TFP) solenoid E - solenoid stuck onTFP solenoid, transmission mechanical fault
P2725Transmission fluid pressure (TFP) solenoid E - electricalWiring, TFP solenoid
P2726Transmission fluid pressure (TFP) solenoid E - circuit intermittentWiring, poor connection, TFP solenoid, TCM
P2727Transmission fluid pressure (TFP) solenoid E - open circuitWiring, TFP solenoid, TCM
P2728Transmission fluid pressure (TFP) solenoid E - range/performance problemTFP solenoid, transmission mechanical fault
P2729Transmission fluid pressure (TFP) solenoid E - circuit lowWiring short to ground, TFP solenoid, TCM
P272AISO/SAE Reserved -
P272BISO/SAE Reserved -
P272CISO/SAE Reserved -
P272DISO/SAE Reserved -
P272EISO/SAE Reserved -
P272FISO/SAE Reserved -
P2730Transmission fluid pressure (TFP) solenoid E - circuit highWiring short to positive, TFP solenoid, TCM
P2731Transmission fluid pressure (TFP) solenoid F - circuit malfunctionWiring, TFP solenoid, TCM
P2732Transmission fluid pressure (TFP) solenoid F - performance problem or solenoid stuck offWiring, TFP solenoid, transmission mechanical fault
P2733Transmission fluid pressure (TFP) solenoid F - solenoid stuck onTFP solenoid, transmission mechanical fault
P2734Transmission fluid pressure (TFP) solenoid F - electricalWiring, TFP solenoid
P2735Transmission fluid pressure (TFP) solenoid F - circuit intermittentWiring, poor connection, TFP solenoid, TCM
P2736Transmission fluid pressure (TFP) solenoid F - open circuitWiring, TFP solenoid, TCM
P2737Transmission fluid pressure (TFP) solenoid F - range/performance problemTFP solenoid, transmission mechanical fault
P2738Transmission fluid pressure (TFP) solenoid F - circuit lowWiring short to ground, TFP solenoid, TCM
P2739Transmission fluid pressure (TFP) solenoid F - circuit highWiring short to positive, TFP solenoid, TCM
P273ATransmission friction element G, apply time - range/performance problemShift solenoid (SS), transmission mechanical fault, TCM, ECM
P273BTransmission friction element H, apply time- range/performance problemShift solenoid (SS), transmission mechanical fault, TCM, ECM
P273CISO/SAE Reserved -
P273DISO/SAE Reserved -
P273EISO/SAE Reserved -
P273FISO/SAE Reserved -
P2740Transmission fluid temperature (TFT) sensor B - circuit malfunctionWiring, TFT sensor
P2741Transmission fluid temperature (TFT) sensor B - circuit range/performance problemWiring, TFT sensor
P2742Transmission fluid temperature (TFT) sensor B - circuit lowWiring short to ground, TFT sensor
P2743Transmission fluid temperature (TFT) sensor B - circuit highWiring short to positive, TFT sensor
P2744Transmission fluid temperature (TFT) sensor B - circuit intermittentWiring, poor connection, TFT sensor
P2745Transmission intermediate shaft speed sensor B - circuit malfunctionWiring, transmission intermediate shaft speed sensor, ECM, TCM
P2746Transmission intermediate shaft speed sensor B- range/performance problemWiring, transmission intermediate shaft speed sensor, ECM, TCM
P2747Transmission intermediate shaft speed sensor B- no signalWiring, transmission intermediate shaft speed sensor, ECM, TCM
P2748Transmission intermediate shaft speed sensor B- circuit intermittentWiring, poor connection, transmission intermediate shaft speed sensor, ECM, TCM
P2749Transmission intermediate shaft speed sensor C - circuit malfunctionWiring, transmission intermediate shaft speed sensor, ECM, TCM
P274AISO/SAE Reserved -
P274BISO/SAE Reserved -
P274CISO/SAE Reserved -
P274DISO/SAE Reserved -
P274EISO/SAE Reserved -
P274FISO/SAE Reserved -
P2750Transmission intermediate shaft speed sensor C - range/performance problemWiring, transmission intermediate shaft speed sensor, ECM, TCM
P2751Transmission intermediate shaft speed sensor C - no signalWiring, transmission intermediate shaft speed sensor, ECM, TCM
P2752Transmission intermediate shaft speed sensor C - circuit intermittentWiring, poor connection, transmission intermediate shaft speed sensor, ECM, TCM
P2753Transmission fluid cooler- open circuitWiring, transmission fluid cooler
P2754Transmission fluid cooler - circuit lowWiring short to ground, transmission fluid cooler
P2755Transmission fluid cooler - circuit highWiring short to positive, transmission fluid cooler
P2756Torque converter clutch (TCC) pressure control solenoid - circuit malfunctionWiring, TCC pressure control solenoid
P2757Torque converter clutch {TCC) pressure control solenoid - performance problem or solenoid stuck offTCC pressure control solenoid
P2758Torque converter clutch (TCC) pressure control solenoid - solenoid stuck onTCC pressure control solenoid
P2759Torque converter clutch (TCC) pressure control solenoid - electrical faultWiring, TCC pressure control solenoid
P275AISO/SAE Reserved -
P275BISO/SAE Reserved -
P275CISO/SAE Reserved -
P275DISO/SAE Reserved -
P275EISO/SAE Reserved -
P275FISO/SAE Reserved -
P2760Torque converter clutch (TCC) pressure control solenoid - circuit intermittentWiring, poor connection, TCC pressure control solenoid
P2761Torque converter clutch {TCC) pressure control solenoid - open circuitWiring, TCC pressure control solenoid
P2762Torque converter clutch {TCC) pressure control solenoid - range/performance problemWiring, TCC pressure control solenoid
P2763Torque converter clutch (TCC) pressure control solenoid - circuit highWiring short to positive, TCC pressure control solenoid
P2764Torque converter clutch (TCC) pressure control solenoid - circuit lowWiring short to ground, TCC pressure control solenoid
P2765Transmission input·shaft speed sensor/turbine shaft speed (TSS) sensor B - circuit malfunctionWiring, transmission input shaft speed sensor/ TSS sensor
P2766Transmission input shaft speed sensor/turbine shaft speed (TSS) sensor B - range/performance problemWiring, transmission input shaft speed sensor/ TSS sensor
P2767Transmission input shaft speed sensor/turbine shaft speed (TSS) sensor 8 - no signalWiring, transmission input shaft speed sensor/ TSS sensor
P2768Transmission input shaft speed sensor/turbine shaft speed (TSS) sensor 8 - circuit intermittentWiring, poor connection, transmission input shaft speed sensorrrss sensor
P2769Torque converter clutch (TCC) - circuit lowWiring short to ground, TCC
P276AISO/SAE Reserved -
P276BISO/SAE Reserved -
P276CISO/SAE Reserved -
P276DISO/SAE Reserved -
P276EISO/SAE Reserved -
P276FISO/SAE Reserved -
P2770Torque converter clutch (TCC) -circuit highWiring short to positive, TCC
P2771Four wheel drive, low gear ratio switch - circuit malfunctionWiring, low gear ratio switch
P2772Four wheel drive, low gear ratio switch - range/performance problemWiring, low gear ratio switch
P2773Four wheel drive, low gear ratio switch - circuit lowWiring short to ground, low gear ratio switch
P2774Four wheel drive, low gear ratio switch - circuit highWiring short to positive, low gear ratio switch
P2775Transmission gear selection switch, upshift - range/performance problemWiring, transmission gear selection switch
P2776Transmission gear selection switch, upshift- circuit lowWiring short to ground, transmission gear selection switch
P2777Transmission gear selection switch, upshift- circuit highWiring short to positive, transmission gear selection switch
P2778Transmission gear selection switch, upshift - circuit intermittent/erraticWiring, poor connection, transmission gear selection switch
P2779Transmission gear selection switch, downshift- range/performance problemWiring, transmission gear selection switch
P277AISO/SAE Reserved -
P277BISO/SAE Reserved -
P277CISO/SAE Reserved -
P277DISO/SAE Reserved -
P277EISO/SAE Reserved -
P277FISO/SAE Reserved -
P2780Transmission gear selection switch, downshift- circuit lowWiring short to ground, transmission gear selection switch
P2781Transmission gear selection switch, downshift- circuit highWiring short to positive, transmission gear selection switch
P2782Transmission gear selection switch, downshift - circuit intermittent/erraticWiring, poor connection, transmission gear selection switch
P2783Torque converter - temperature too highTransmission fluid level low, transmission mechanical fault, TCC slipping
P2784Transmission input shaft speed sensor/turbine shaft speed (TSS) sensor A/8- correlationWiring, transmission input shaft speed sensor/ TSS sensor
P2785Clutch actuator - temperature too high-
P2786Gear shift actuator - temperature too high-
P2787Clutch - temperature too highClutch slipping
P2788Auto shift manual (ASM) transmission, adaptive learning - at limit-
P2789Clutch, adaptive learning - at limit-
P278ATransmission kick-down switch - circuit malfunctionWiring, transmission kick-down switch, TCM, ECM
P278BTransmission kick-down switch - circuit range/performanceWiring, transmission kick-down switch, TCM, ECM
P278CTransmission kick-down switch - circuit lowWiring, transmission kick-down switch, TCM, ECM
P278DTransmission kick-down switch - circuit highWiring, transmission kick-down switch, TCM, ECM
P278ETransmission kick-down switch - circuit intermittent/erraticWiring, transmission kick-down switch, TCM, ECM
P278FClutch "B" Adaptive Learning at Limit -
P2790Gate select direction - circuit malfunctionWiring
P2791Gate select direction - circuit lowWiring short to ground
P2792Gate select direction - circuit highWiring short to positive
P2793Gear shift direction - circuit malfunctionWiring
P2794Gear shift direction - circuit lowWiring short to ground
P2795Gear shift direction - circuit highWiring short to positive
P2796Auxiliary Transmission Fluid Pump Control Circuit/Open -
P2797Auxiliary Transmission Fluid Pump Performance -
P2798Auxiliary Transmission Fluid Pump Control Circuit Low -
P2799Auxiliary Transmission Fluid Pump Control Circuit High -
P279ATransfer Case Gear High Incorrect Ratio -
P279BTransfer Case Gear Low Incorrect Ratio -
P279CTransfer Case Gear Neutral Incorrect Ratio -
P279DFour Wheel Drive (4WD) Range Signal Circuit -
P279EFour Wheel Drive (4WD) Range Signal Circuit Range/Performance -
P279FFour Wheel Drive (4WD) Range Signal Circuit Low -
P27A0Four Wheel Drive (4WD) Range Signal Circuit High -
P27A1 – P27FFISO/SAE Reserved -
P2800 – P2899 (Transmission)
P2800Transmission Range Sensor "B" Circuit (PRNDL Input) -
P2801Transmission Range Sensor "B" Circuit Range/Performance -
P2802Transmission Range Sensor "B" Circuit Low -
P2803Transmission Range Sensor "B" Circuit High -
P2804Transmission Range Sensor "B" Circuit Intermittent -
P2805Transmission Range Sensor "A"/"B" Correlation -
P2806Transmission Range Sensor Alignment -
P2807Pressure Control Solenoid "G" -
P2808Pressure Control Solenoid "G" Performance/Stuck Off -
P2809Pressure Control Solenoid "G" Stuck On -
P280ATransmission Range Sensor "A" Circuit Not Learned -
P280BTransmission Range Sensor "B" Circuit Not Learned -
P280CISO/SAE Reserved -
P280DISO/SAE Reserved -
P280EISO/SAE Reserved -
P280FISO/SAE Reserved -
P2810Pressure Control Solenoid "G" Electrical -
P2811Pressure Control Solenoid "G" Intermittent -
P2812Pressure Control Solenoid "G" Control Circuit/Open -
P2813Pressure Control Solenoid "G" Control Circuit Range/Performance -
P2814Pressure Control Solenoid "G" Control Circuit Low -
P2815Pressure Control Solenoid "G" Control Circuit High -
P2816Pressure Control Solenoid "H" -
P2817Pressure Control Solenoid "H" Performance/Stuck Off -
P2818Pressure Control Solenoid "H" Stuck On -
P2819Pressure Control Solenoid "H" Electrical -
P281ATransmission fluid pressure (TFP) solenoid H - intermittentWiring, TFP solenoid, ECM
P281BTransmission fluid pressure (TFP) solenoid H - control circuit openWiring, TFP solenoid, ECM
P281CTransmission fluid pressure {TFP) solenoid H - control circuit range/performanceWiring, TFP solenoid, ECM
P281DTransmission fluid pressure (TFP) solenoid H - control circuit lowWiring, TFP solenoid, ECM
P281ETransmission fluid pressure (TFP) solenoid H - control circuit highWiring, TFP solenoid, ECM
P281FTransmission fluid pressure {TFP) solenoid J - malfunctionWiring, TFP solenoid, ECM
P2820Pressure Control Solenoid "J" Performance/Stuck Off -
P2821Pressure Control Solenoid "J" Stuck On -
P2822Pressure Control Solenoid "J" Electrical -
P2823Pressure Control Solenoid "J" Intermittent -
P2824Pressure Control Solenoid "J" Control Circuit/Open -
P2825Pressure Control Solenoid "J" Control Circuit Range/Performance -
P2826Pressure Control Solenoid "J" Control Circuit Low -
P2827Pressure Control Solenoid "J" Control Circuit High -
P2828Pressure Control Solenoid "K" -
P2829Pressure Control Solenoid "K" Performance/Stuck Off -
P282ATransmission fluid pressure {TFP) solenoid K - solenoid stuck onWiring, TFP solenoid, transmission mechanical fault, ECM
P282BTransmission fluid pressure (TFP) solenoid K - electricalWiring, TFP solenoid, ECM
P282CTransmission fluid pressure (TFP) solenoid K - intermittentWiring, TFP solenoid, ECM
P282DTransmission fluid pressure {TFP) solenoid K - control circuit openWiring, TFP solenoid, ECM
P282ETransmission fluid pressure (TFP) solenoid K - control circuit range/performanceWiring, TFP solenoid, ECM
P282FTransmission fluid pressure {TFP) solenoid K - control circuit lowWiring, TFP solenoid, ECM
P2830Pressure Control Solenoid "K" Control Circuit High -
P2831Shift Fork "A" Position Circuit -
P2832Shift Fork "A" Position Circuit Range/Performance -
P2833Shift Fork "A" Position Circuit Low -
P2834Shift Fork "A" Position Circuit High -
P2835Shift Fork "A" Position Circuit Intermittent -
P2836Shift Fork "B" Position Circuit -
P2837Shift Fork "B" Position Circuit Range/Performance -
P2838Shift Fork "B" Position Circuit Low -
P2839Shift Fork "B" Position Circuit High -
P283AShift Fork "B" Position Circuit Intermittent -
P283BShift Fork "C" Position Circuit -
P283CShift Fork "C" Position Circuit Range/Performance -
P283DShift Fork "C" Position Circuit Low -
P283EShift Fork "C" Position Circuit High -
P283FShift Fork "C" Position Circuit Intermittent -
P2840Shift Fork "D" Position Circuit -
P2841Shift Fork "D" Position Circuit Range/Performance -
P2842Shift Fork "D" Position Circuit Low -
P2843Shift Fork "D" Position Circuit High -
P2844Shift Fork "D" Position Circuit Intermittent -
P2845Shift Fork "A" Position Sensor Incorrect Neutral Position Indicated -
P2846Shift Fork "B" Position Sensor Incorrect Neutral Position Indicated -
P2847Shift Fork "C" Position Sensor Incorrect Neutral Position Indicated -
P2848Shift Fork "D" Position Sensor Incorrect Neutral Position Indicated -
P2849Shift Fork "A" Stuck -
P284AShift Fork "B" Stuck -
P284BShift Fork "C" Stuck -
P284CShift Fork "D" Stuck -
P284DShift Fork "A" Unrequested Movement -
P284EShift Fork "B" Unrequested Movement -
P284FShift Fork "C" Unrequested Movement -
P2850Shift Fork "D" Unrequested Movement -
P2851Shift Fork Position Sensor "A"/"B" Correlation -
P2852Shift Fork Position Sensor "C"/"D" Correlation -
P2853Clutch "A" Pressure Discharge Performance -
P2854Clutch "B" Pressure Discharge Performance -
P2855Clutch "A" Pressure Charge Performance -
P2856Clutch "B" Pressure Charge Performance -
P2857Clutch "A" Pressure Engagement Performance -
P2858Clutch "B" Pressure Engagement Performance -
P2859Clutch "A" Pressure Disengagement Performance -
P285AClutch "B" Pressure Disengagement Performance -
P285B – P28FFISO/SAE Reserved -
P2900 – P2999 (Transmission)
P2900ISO/SAE Reserved -
P2999ISO/SAE Reserved
P2A00 – P2A99 (Fuel and Air Metering)
P2A00Heated oxygen sensor (H02S) 1, bank 1 - range/performance problemIntake/exhaust leak, fuel pressure, wiring, H025
P2A01Heated oxygen sensor (H028) 2, bank 1 - range/performance problemIntake/exhaust leak, fuel pressure, wiring, H025
P2A02Heated oxygen sensor (H02S) 3, bank 1 - range/performance problemIntake/exhaust leak, fuel pressure, wiring, H025
P2A03Heated oxygen sensor (H028) 1, bank 2- range/performance problemIntake/exhaust leak, fuel pressure,wiring,H02S
P2A04Heated oxygen sensor (H028) 2, bank 2 - range/performance problemIntake/exhaust leak, fuel pressure, wiring, H02S
P2A05Heated oxygen sensor (H02S) 3, bank 2 - range/performance problemIntake/exhaust leak, fuel pressure, wiring, H025
P2A06Heated oxygen sensor (H028) 1, bank 1 - circuit negative voltageWiring, H025, ECM
P2A07Heated oxygen sensor (H02S) 2, bank 1 - circuit negative voltageWiring, H025, ECM
P2A08Heated oxygen sensor (H02S) 3, bank 1 - circuit negative voltageWiring, H025, ECM
P2A09Heated oxygen sensor (H028) 1, bank 2 - circuit negative voltageWiring, H025, ECM
P2A0AISO/SAE Reserved -
P2A0BISO/SAE Reserved -
P2A0CISO/SAE Reserved -
P2A0DISO/SAE Reserved -
P2A0EISO/SAE Reserved -
P2A0FISO/SAE Reserved -
P2A10Heated oxygen sensor (H02S) 2. bank 2 - circuit negative voltageWiring, H02S, ECM
P2A11Heated oxygen sensor (H02S) 3, bank 2 - circuit negative voltageWiring, H02S, ECM
P2A12 – P2AFFISO/SAE Reserved -
P2B00 – P2BA6ISO/SAE Reserved -
P2BA7NOx Exceedence - Empty Reagent Tank -
P2BA8NOx Exceedence - Interruption of Reagent Dosing Activity -
P2BA9NOx Exceedence - Insufficient Reagent Quality -
P2BAANOx Exceedence - Low Reagent Consumption -
P2BABNOx Exceedence - Incorrect EGR Flow -
P2BACNOx Exceedence - Deactivation of EGR -
P2BADNOx Exceedence - Root Cause Unknown -
P2BAENOx Exceedence - NOx control monitoring system -
P2BAF – P2BFFISO/SAE Reserved -
P2C00 – P2C99 (ISO/SAE Reserved)
P2C00ISO/SAE Reserved -
P2D00 – P2D99 (ISO/SAE Reserved)
P2D00ISO/SAE Reserved -
P2E00 – P2E99 (ISO/SAE Reserved)
P2E00ISO/SAE Reserved -
P2F00 – P2F99 (ISO/SAE Reserved)
P2F00ISO/SAE Reserved -

Thanks to D.Andrews for his help.96 & newer vehicles are OBD2 systems and REQUIRE A SCANNER, unless otherwise stated.

Warning: Please check for manufacturer specific codes and confirm the trouble code descriptions with an appropriate manual.

Disclaimer: We cannot guarantee the accuracy of all trouble codes.We try and make them as accurate as we can, but sometimes we all make mistakes.