OBDII Toyota 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.

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Toyota Codes
Trouble Code Fault Location Probable Cause
P0171System too lean, bank 1Intake/exhaust leak, AIR system, MAFNAF sensor, fuel pressure/pump, injector(s), HO2S
P0420Catalytic converter system, bank 1 -efficiency below thresholdCatalytic converter, wiring, HO2S 2
P0446Evaporative emission (EVAP) system, vent control -circuit malfunctionWiring, EVAP canister purge valve, ECM
P1010Oil control valve/variable valve lift – LH bank – circuit malfunctionWiring, oil control valve, variable valve lift oil pressure switch, ECM
P1011Oil control valve/variable valve lift – LH bank – open malfunctionWiring, oil control valve, variable valve lift oil pressure switch, ECM
P1012Oil control valve/variable valve lift – LH bank – close malfunctionWiring, oil control valve, variable valve lift oil pressure switch, ECM
P101DHeated oxygen sensor (H02S) 1, bank 1 – heater circuit malfunction – stuck onECM
P1023Camshaft Position Signal Output B Circuit
P102DHeated oxygen sensor (H02S) 2, bank 1 – heater circuit malfunction – stuck onECM
P1100 – P1199 (Fuel and air metering)
P1100BARO Sensor Circuit MalfunctionWiring, BARO sensor, ECM
P1115Coolant Temperature Sensor Circuit For Heat Storage System
P1116Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System
P1117Coolant Temperature Sensor Circuit Stack for Coolant Heat Storage System
P1118Coolant Temperature Sensor Circuit High for Coolant Heat Storage System
P1120Accelerator pedal position (APP) sensor - circuit malfunctionWiring, APP sensor, ECM
P1121Accelerator pedal position (APP) sensor - range/performance problemAPP sensor, ECM
P1123Coolant Flow Control Valve Position Sensor Circuit High
P1125Throttle actuator control (TAC) motor - circuit malfunctionWiring, TAC motor, ECM
P1126Magnetic clutch - circuit malfunctionWiring, magnetic clutch, ECM
P1127Throttle actuator control (TAC) power source - circuit malfunctionWiring, ECM
P1128Throttle actuator control (TAC) lock - malfunctionTAC motor, throttle body, ECM
P1129Throttle actuator control (TAC) system - malfunctionTAC system, ECM
P1130Heated oxygen sensor (H02S)- LH front- range/performance malfunctionWiring, H025, air induction system, fuel pressure, injector(s), ECM
P1133Heated oxygen sensor (H02S) – LH front- response malfunctionH02S, air induction system, fuel pressure, injector(s), ECM
P1135Heated oxygen sensor (H02S) – LH front – heater circuit malfunctionWiring, H02S, ECM
P1150Air fuel sensor - California - RH front - performance malfunctionWiring, air fuel ratio sensor, ECM
P1153Air fuel sensor - California - RH front - response malfunctionAir fuel ratio sensor
P1155Air fuel sensor - California - RH front - heater circuit malfunctionWiring, air fuel ratio sensor, ECM
P1170Port Injector Fuel Performance
P1200 – P1299 (Fuel and air metering – injector circuit)
P1200Fuel pump (FP) relay/ECM - circuit malfunctionWiring, fuel pump/control module, ECM
P1215Electronic Driving Unit Circuit
P1222Throttle Motor Circuit
P1228Fuel Pump Malfunction
P1229Fuel System Over Pressure
P1235High Pressure Fuel Pump Circuit
P1236High Pressure Fuel Pump Number 2 Circuit
P1276Port Injector Circuit Number 1
P1277Port Injector Circuit Number 2
P1278Port Injector Circuit Number 3
P1279Port Injector Circuit Number 4
P1300 – P1399 (Ignition system or misfire)
P1300Ignition control - circuit malfunctionWiring, ignition module, ECM
P1305Ignition control - cylinder No. 2 - circuit malfunctionWiring, ignition coil/module, ECM
P1310Ignition control - cylinder No. 3 - circuit malfunctionWiring, ignition coil/module, ECM
P1315Ignition control - cylinder No. 4 - circuit malfunctionWiring, ignition coil/module, ECM
P1320Ignition control - cylinder No. 5 - circuit malfunctionWiring, ignition coil/module, ECM
P1325Ignition control - cylinder No. 6 - circuit malfunctionWiring, ignition coil/module, ECM
P1330Ignition control - cylinder No. 7 - circuit malfunctionWiring, ignition module/coil, ECM
P1335Crankshaft position (CKP) sensor - circuit malfunctionWiring, CKP sensor, ECM
P1340Ignition control - cylinder No. 8 - circuit malfunctionWiring, ignition module/coil, ECM
P1341Camshaft Position Sensor 'A' No Signal Over 600 RPM Bank 1 Sensor 2
P1342Camshaft Position Sensor 'A' Low Input
P1343Camshaft Position Sensor 'A' High Input
P1345Variable valve timing sensor - LH bank - circuit malfunctionWiring, valve timing sensor, ECM
P1346Variable valve timing sensor - LH bank - range/performance problemValve timing, ECM
P1349Camshaft position (CMP) actuator system - malfunctionValve timing, CMP actuator, ECM
P1350Variable valve timing sensor - RH bank - circuit malfunctionWiring, valve timing sensor, ECM
P1351Variable valve timing sensor - RH bank - range/performance problemValve timing, ECM
P1354Variable valve timing system - RH bank - malfunctionValve timing, oil control valve, valve control module, ECM timing
P1360'A' Camshaft Position Actuator Circuit Open/Low/High Bank 1
P1361'A' Camshaft Position Actuator Circuit Open/Low/High Bank 2
P1362'B' Camshaft Position Actuator Circuit Open/Low/High Bank 1
P1363'B' Camshaft Position Actuator Circuit Open/Low/High Bank 2
P1364'C' Camshaft Position Actuator Circuit Open/Low/High Bank 1
P1366'E' Camshaft Position Actuator Circuit Open/Low/High Bank 1
P1367'E' Camshaft Position Actuator Circuit Open/Low/High Bank 2
P1400 – P1499 (Emission control)
P1400Throttle position (TP) sensor 2 - circuit malfunctionWiring, TP sensor, ECM
P1401Throttle position (TP) sensor 2 - range/ performance problemTP sensor
P1405Turbocharger (TC) pressure sensor - circuit malfunctionWiring, TC pressure sensor, ECM
P1406Turbocharger (TC) pressure sensor - range/ performance problemTC pressure sensor
P1410Exhaust gas recirculation (EGR) valve position sensor - malfunctionWiring, EGR valve position sensor, ECM
P1411Exhaust gas recirculation (EGR) valve position sensor - range/performance problemEGR valve position sensor
P1420EVAP Canister Small Leak
P1421EVAP Canister Gross Leak
P1422Fuel Tank Small leak
P1423Fuel Tank Gross Leak
P1436Bypass Valve Malfunction
P1440Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 1Wiring, AIR, ECM
P1441Secondary Air Injection System Switching Valve No.2 Stuck Open Bank 1Wiring, AIR, ECM
P1442Stuck Closed In Secondary Air Injection Vacuum Switching Valve Bank 1Wiring, AIR, vacuum hose, ECM
P1443Secondary Air Injection Vacuum Switching Valve Circuit Malfunction Bank 2Wiring, AIR, ECM
P1444Secondary Air Injection System Switching Valve Stuck Open Bank 2Wiring, AIR, ECM
P1445Secondary Air Injection System Switching Valve Stuck Close Bank 2Wiring, AIR, vacuum hose, ECM
P1450Fuel Tank Pressure Sensor
P1451Fuel Tank Pressure Sensor Range/Performance
P1452Fuel Tank Pressure Sensor Low Input
P1453Fuel Tank Pressure Sensor High Input
P1455Vapor Reducing Fuel Tank System Malfunction
P1500 – P1599 (Vehicle or idle speed control)
P1500Starter signal - circuit malfunctionWiring, ignition switch, engine control relay, ECM
P1510Supercharger (SC) pressure control - circuit malfunctionWiring, SC magnetic clutch/relay, SC bypass valve, Intake system, ECM
P1511Turbocharger (TC) pressure - too lowIntake system/air control valve, wiring, TC wastegate regulating valve/actuator, ECM
P1512Turbocharger (TC) pressure - too highWiring, TC wastegate regulating valve/ actuator, ECM
P1520Stop lamp switch - signal malfunctionWiring, stop lamp switch, ECM
P1550Battery Current Sensor Circuit Range/Performance
P1551Battery Current Sensor Circuit Low Input
P1552Battery Current Sensor Circuit High Input
P1555Reactor Temperature Sensor Circuit Low
P1556Reactor Temperature Sensor Circuit High
P1557DC/DC Converter Temperature Sensor Circuit
P1565Cruise control switch - signal malfunctionWiring, cruise control switch, ECM
P1566Cruise Control Main Switch Circuit Malfunction
P1569Brake system – malfunctionABS system, ABS control module
P1570Radar Sensor MalfunctionCruise control laser radar sensor, cruise control module, ECM
P1572Improper Aiming Of Radar Sensor Beam AxisCruise control laser radar sensor alignment, cruise control laser radar sensor
P1575Cruise control/skid control warning buzzer – malfunctionWiring, warning buzzer, ABS control module
P1578Brake system – malfunctionABS system, ABS control module
P1589Acceleration Sensor Learning Value
P1600 – P1699 (ECM – computer output circuit)
P1600Engine control module (ECM) - supply voltageWiring, ECM
P1601Injector Correction Circuit Malfunction
P1602Battery voltage monitor – malfunctionWiring, battery, ECM
P1603Engine Stall History
P1604Startability Malfunction
P1605Knock control - malfunctionECM
P1607Cruise Control Input ProcessorWiring, ECM
P1613Secondary air injection (AIR) – malfunctionWiring, AIR, ECM
P1614Secondary air injection (AIR), bank 2 – malfunctionWiring, AIR, ECM
P1615CAN data bus, cruise control module – communication errorWiring, cruise control module, ECM
P1616CAN data bus, cruise control module – communication errorWiring, ECM, cruise control module
P1630Traction control system - malfunctionWiring, throttle control module, ECM
P1631Communication Error Between From ECM To VSC
P1633Engine control module (ECM) - throttle actuator control (TAC) system - malfunctionECM
P1645Body control module - malfunctionBody control module, A/C control module, wiring
P1647Transmission control module (TCM) - system malfunctionTrouble code(s) stored
P1652Turbocharger (TC) 2 air control solenoid - circuit malfunctionWiring, air control solenoid, ECM
P1653SCV Circuit Malfunction
P1656Oil control valve - circuit malfunctionWiring, oil control valve, ECM
P1658Turbocharger (TC) wastegate regulating valve - circuit malfunctionWiring, TC wastegate regulating valve, ECM
P1661Turbocharger (TC) 2 exhaust gas control valve - circuit malfunctionWiring, exhaust gas control valve, ECM
P1662Exhaust bypass valve - circuit malfunctionWiring, exhaust bypass valve, ECM
P1663Oil control valve/variable valve timing - RH bank - malfunctionWiring, oil control valve, ECM
P1690Oil control valve/variable valve timing - malfunctionWiring, oil control valve, ECM
P1692Variable valve timing - malfunctionWiring, valve timing sensor, ECM
P1693Variable valve timing - malfunctionWiring, valve timing sensor, ECM
P1700 – P1799 (Transmission)
P1700Output shaft speed (OSS) sensorWiring, OSS sensor, ECM
P1705AT - direct clutch speed sensorWiring, direct clutch speed sensor, ECM
P1715Rear wheel speed sensor(s) - malfunctionWiring, rear wheel speed sensor(s), ECM
P1725Input shaft speed (ISS) sensor/turbine shaft speed (TSS) sensor - circuit malfunctionWiring, ISS sensor/TSS sensor, ECM
P1730Intermediate shaft speed sensor - ATWiring, intermediate shaft speed sensor, ECM
P1755Torque converter clutch (TCC) solenoid - circuit malfunctionWiring, torque converter, TCC solenoid, ECM
P1760AT - pressure control shift solenoidWiring, shift solenoid, ECM
P1765AT - pressure control shift solenoidWiring, shift solenoid, ECM
P1770Differential lock solenoid - circuit malfunctionWiring, differential lock solenoid, ECM
P1780Park/neutral position (PNP) switch - circuit malfunctionWiring, PNP switch, ECM
P1781Shift lever switch - malfunctionWiring, shift lever switch, ECM
P1782Transfer box low ratio switch – circuit malfunctionWiring, transfer box low ratio switch, ECM
P1783Transfer box neutral switch – circuit malfunctionWiring, transfer box neutral switch, ECM
P1790Shift/timing solenoidWiring, shift/timing solenoid, ECM
P1810CAN data bus malfunction - malfunctionWiring
P1815Shift control solenoid - malfunctionWiring, shift control solenoid, ECM
P1818Shift control solenoid - circuit malfunctionWiring, shift control solenoid, ECM