OBDII Ford 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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Ford Codes
Trouble Code Fault Location Probable Cause
P0171Fuel trim (FT) system too lean, bank 1Intake/exhaust leak, AIR system, MAFNAF sensor, fuel pressure/pump, injector(s), HO2S
P0455Evaporative emission (EVAP) system -large leak detectedHose connection(s), intake leak, EVAP canister, EVAP canister purge valve
P1000 – P1099 (Fuel and air metering and auxiliary emission control)
P1000On Board Diagnostic System Readiness Test Not Complete-
P1001Key On/Engine Running Not Able To Complete-
P1039Vehicle Speed Signal Missing or Improper
P1051Brake Switch Signal Missing or Improper
P1100 – P1199 (Fuel and air metering)
P1100Mass Air Flow Sensor IntermittentWiring, MAF sensor
P1101Mass Air Flow Sensor Out of Self-Test RangeWiring, battery, MAF sensor, ECM
P1102Mass Air Flow Sensor In Range But Lower Than ExpectedWiring, MAF sensor, ECM
P1105Dual alternator upper -malfunctionWiring, alternator, ECM
P1106Dual alternator lower -malfunctionWiring, alternator, ECM
P1107Dual Alternator Lower Circuit MalfunctionWiring, alternator, ECM
P1108Dual Alternator Battery Lamp Circuit MalfunctionWiring, alternator (upper), alternator (lower), ECM
P1109IAT Sensor 2 Intermittent Condition
P1111CAT System Fault
P1112Intake Air Temperature Sensor Intermittent ConditionWiring, IAT sensor, ECM
P1114Intake Air Temperature Sensor 2 Circuit LowWiring short circuit to ground, IAT sensor, ECM
P1115Intake Air Temperature Sensor 2 Circuit HighWiring, IAT sensor, ECM
P1116Engine Coolant Temperature Sensor is Out of Self-Test RangeWiring, cooling system fault, ECT sensor, CHTsensor, ECM
P1117Engine Coolant Temperature Sensor IntermittentWiring, cooling system fault, ECT sensor, CHT sensor, ECM
P1118Manifold Absolute Temperature Circuit Low InputWiring, IAT sensor, ECM
P1119Manifold Absolute Temperature Circuit High InputWiring, IAT sensor, ECM
P1120Throttle Position Sensor Out of RangeWiring, TP sensor
P1121Throttle Position Sensor Inconsistent with Mass Air Flow SensorWiring, MAF sensor, TP sensor, air leak
P1122Throttle Position Sensor Circuit Intermittent Low Voltage
P1123Throttle Position Sensor Circuit Intermittent High Voltage
P1124Throttle Position Sensor Out of Self-Test RangeMechanical fault, TP sensor, ECM
P1125Throttle Position Sensor IntermittentWiring, TP sensor
P1127Exhaust Not Warm Enough Downstream O2 Sensor Not TestedEngine not running long enough prior to self-test
P1128Front O2 Sensor Connectors SwappedWiring, connectors swapped
P1129Downstream Oxygen Sensors Swapped from Bank to Bank Wiring, connectors swapped
P1130Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel Limit Bank 1Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM
P1131Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM
P1132Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 1Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM
P1133Bank 1 Fuel Control Shifted Lean
P1135Pedal Position Sensor 'A' Circuit Intermittent
P1136Crankshaft Position Sensor And Or Camshaft Position Sensor Input Signal to PCM Concerns
P1137Lack Of O2 Switches Bank 1 Sensor 2 LeanWiring, exhaust system leaking, H02S
P1138Lack Of HO2S Switches Bank 1 Sensor 2 RichWiring, exhaust system leaking, H02S
P1139Water In Fuel Indicator Circuit MalfunctionWiring, bulb open circuit, instrument panel, ECM
P1140Water In Fuel ConditionWiring, fuel filter, fuel/water separator sensor,ECM
P1141Fuel Restriction Indicator Circuit Malfunction
P1142Fuel Restriction Condition
P1145Calculated Torque Error
P1148Alternator 2 -circuit malfunctionWiring, alternator, ECM
P1149Alternator 2 -high inputWiring, alternator, ECM
P1150Lack of Upstream Heated Oxygen Sensor Switch Adaptive Fuel Limit Bank 2Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM
P1151Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 2Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM
P1152Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Rich Bank 2Wiring, intake/fuel system, H02S, EGR system, oil level, camshaft timing, cylinder compression, ECM
P1153Bank 2 Fuel Control Shifted Lean
P1154Bank 2 Fuel Control Shifted Rich
P1155Alternative Fuel Controller
P1156Fuel Selector Switch CircuitWiring, fuel injector control module, ECM
P1157Lack of O2 Switches Bank 2 Sensor 2 Indicates LeanWiring, exhaust system leaking, H02S
P1158Lack of O2 Switches Bank 2 Sensor 2 Indicates Lean
P115EEngine control module (ECM) -data transmission faultThrottle position (TP), wiring, ECM
P1168Fuel Rail Pressure Sensor Condition Low PressureWiring, fuel level, low fuel pressure, fuel rail pressure sensor
P1169Fuel Rail Sensor In-Range High FailureWiring, high fuel pressure, fuel rail pressure sensor
P1170Engine Shut Off Solenoid Fault
P1171Rotor Sensor Fault
P1172Rotor Control Fault
P1173Rotor Calibration Fault
P1174Cam Sensor Fault
P1175Cam Control Fault
P1176Cam Calibration Fault
P1177Synchronization Fault
P117AEngine control module (ECM) -engine oil temperatureEngine overheated, wiring, ECM
P1180Fuel Delivery System Malfunction Low
P1181Fuel Delivery System Malfunction High
P1183Engine Oil Temperature Sensor Circuit Malfunction
P1184Engine Oil Temperature Out Of Self Test RangeWiring, EOT sensor, ECM
P1185FTS High Fuel Pump Temperature Sensor High
P1186Fuel Pump Temperature Sensor Low
P1187Variant Selection
P1188Calibration Memory Fault
P1189Pump Speed Signal Fault
P1190Calibration Resistor Out Of Range
P1191Key Line Voltage
P1192Voltage External
P1193EGR Drive Overcurrent
P1194Engine Control Unit A/D Converter
P1195SCP HBCC Failed To Initialize
P1196Key Off Voltage High
P1197Key Off Voltage Low
P1198Pump Rotor Control Underfueling
P1209Injector Control Pressure System FaultOil quality, oil level, oil pressure too high/low, low fuel pressure, fuel pressure regulator control solenoid
P1210Injector Control Pressure Above Expected LevelWiring, fuel pressure sensor, ECM
P1211Injector Control Pressure Sensor Above / Below DesiredOil quality, oil level, oil pressure too highllow, low fuel pressure, fuel pressure regulator control solenoid
P1212Injector Control Pressure Not Detected During CrankOil quality, oil level, oil pressure too highllow, low fuel pressure, fuel pressure sensor, fuel pressure regulator
P1213Start Injector Circuit Malfunction
P1214Pedal Position Sensor 'B' Circuit Intermittent
P1215Pedal Position Sensor 'C' Circuit Low Input
P1216Pedal Position Sensor 'C' Circuit High Input
P1217Pedal Position Sensor 'C' Circuit Intermittent
P1218CID HighInjector control module, ECM
P1219CID Stuck LowInjector control module, ECM
P1220Series Throttle Control Fault Detected
P1221Traction Control System Malfunction
P1222Traction Control Output Circuit Malfunction
P1223Pedal Demand Sensor B Circuit High Input
P1224Throttle Position Sensor 'B' Out of Self-Test Range
P1227Wastegate Failed Closed Over PressureEGR valve, MAF sensor, SC wastegate actuator, SC
P1228Wastegate Failed Open Under PressureEGR valve, MAF sensor, SC wastegate actuator,SC
P1229Supercharger Intercooler Pump Not Operating ConditionWiring, SC intercooler pump, SC intercooler pump relay, ECM
P1230Low Speed Fuel Pump Fault Condition
P1231High Speed Fuel Pump Relay Activated
P1232Low Speed Fuel Pump Primary Circuit FailureWiring, low speed fuel pump relay, ECM
P1233Fuel Pump Driver Module Disabled Or Off Line Wiring, IFS switch, fuel pump, fuel pump control module, ECM
P1234Fuel Pump Driver Module Disabled Or Off LineWiring, IFS switch, fuel pump, fuel pump control module, ECM
P1235Fuel Pump Control Out of RangeWiring, fuel pump, fuel pump control module, ECM
P1236Fuel Pump Control Out of RangeWiring, fuel pump, fuel pump control module, ECM
P1237Fuel Pump Secondary Circuit FaultWiring, fuel pump, fuel pump relay, fuel pump control module
P1238Fuel Pump Secondary Circuit FaultWiring, fuel pump, fuel pump relay, fuel pump control module
P1239Speed Fuel Pump Positive Feed Fault
P1243Second Fuel Pump Faulty or Ground Fault
P1244Alternator Load Input Failed HighWiring, alternator, ECM
P1245Alternator Load Input Failed LowWiring, drive belt, alternator, ECM
P1246Alternator Load Input FailedWiring, alternator, drive belt, ECM
P1247Turbo Boost Pressure LowWiring, hoses, MAP sensor, ECM
P1248Turbo Boost Pressure Not DetectedWiring, hoses, MAP sensor, ECM
P1249Wastegate Control Valve PerformanceWiring, hoses, TC wastegate regulating valve, TC wastegate actuator, ECM
P1250Lack Of Power To Fuel Pressure Regulator Control Solenoid
P1252Fuel Pressure Control Solenoid Valve 2 Malfunction
P1253Pedal Correlation PDS1 and LPDS Low
P1254Pedal Correlation PDS2 and LPDS High
P1255Pedal Correlation PDS2 and LPDS Low
P1256Pedal Correlation PDS1 and HPDS
P1257Pedal Correlation PDS2 and HPDS
P1258Pedal Correlation PDS1 and PDS2
P1260Theft Detected - Vehicle Immobilized
P1261Cylinder #1 High To Low Side ShortWiring short circuit
P1262Cylinder #2 High To Low Side ShortWiring short circuit
P1263Cylinder #3 High To Low Side ShortWiring short circuit
P1264Cylinder #4 High To Low Side ShortWiring short circuit
P1265Cylinder #5 High To Low Side ShortWiring short circuit
P1266Cylinder #6 High To Low Side ShortWiring short circuit
P1267Cylinder #7 High To Low Side ShortWiring short circuit
P1268Cylinder #8 High To Low Side ShortWiring short circuit
P1270Engine RPM Or Speed Limiter ReachedEngine over revved in neutral, wheel slippage
P1271Cylinder #1 High To Low Side OpenWiring open circuit
P1272Cylinder #2 High To Low Side OpenWiring open circuit
P1273Cylinder #3 High To Low Side OpenWiring open circuit
P1274Cylinder #4 High To Low Side OpenWiring open circuit
P1275Cylinder #5 High To Low Side OpenWiring open circuit
P1276Cylinder #6 High To Low Side OpenWiring open circuit
P1277Cylinder #7 High To Low Side OpenWiring open circuit
P1278Cylinder #8 High To Low Side OpenWiring open circuit
P1280Injection Control Pressure Out Of Range Low
P1281Injection Control Pressure Out Of Range High
P1282Excessive Injection Control PressureWiring, fuel pressure regulator control solenoid
P1283Fuel pressure regulator control solenoid -circuit malfunctionWiring open circuit/short circuit to positive
P1284Self-test not complete -fuel pressure sensor failureWiring, fuel pressure sensor, ECM
P1285Cylinder Head Over Temperature ConditionWiring, cooling system fault, CHT sensor
P1286Fuel Pulse In Range But Lower Than Expected
P1287Fuel Pulse In Range But Higher Than Expected
P1288Cylinder Head Temperature Sensor Out of Self-Test RangeWiring, cooling system fault, CHT sensor
P1289Cylinder Head Temperature Sensor Signal Greater Than Self-Test RangeWiring, cooling system fault, CHT sensor
P128AEngine control module (ECM)/cylinder head temperature (CHT) sensor -high inputWiring, CHT sensor, ECM
P1290Cylinder Head Temperature Sensor Signal Less Than Self-Test RangeWiring, cooling system fault, CHT sensor
P1291Injector High Side Short To GND Or VBATT Bank 1High side short circuit to ground/positive, injector(s), injector control module
P1292Injector High Side Short To GND Or VBATT - Bank 2High side short circuit to ground/positive, injector(s), injector control module
P1293High Side Open Bank No. 1High side open circuit, injector(s), injector control module
P1294High Side Open Bank No. 2High side open circuit, injector(s), injector control module
P1295Multi-Faults Bank 1 With Low Side ShortsWiring short circuit to ground, injector control module
P1296Multi-Faults Bank 2 With Low Side ShortsWiring short circuit to ground, injector control module
P1297Injector High Sides Shorted TogetherWiring short circuit, injector control module
P1298Injector control module -internal faultInjector control module
P1299Cylinder Head Temperature Sensor Detected Engine Overheating ConditionWiring, cooling system fault, CHT sensor
P1300 – P1399 (Ignition system or misfire)
P1300Boost Pressure Malfunction
P1301Boost Pressure Pressure High
P1302Boost Pressure Pressure Low
P1303EGR Calibration Fault
P1304EGR Calibration High
P1305EGR Calibration Low
P1306Kickdown Relay Pull In Circuit Fault
P1307Kickdown Relay Hold Circuit Fault
P1308A/C Clutch Circuit Fault
P1309Misfire Detection Monitor Not enabledCMP sensor, CKP sensor, ECT sensor, MAF sensor, ECM
P1316Ignition Driver Monitor Codes Detected Wiring, injector control module, ECM
P1317Ignition Driver Monitor Codes Not Updated
P1330Injector Control Pressure
P1331Turbocharger / Supercharger Boost Pressure Control Open Circuit
P1332Turbocharger / Supercharger Boost Pressure Control Circuit Low
P1334Exhaust gas recirculation (EGR)/throttle position sensor -range/performance problemWiring, EGRlthrottle position sensor, ECM
P1335EGR Position Sensor Minimum Stop PerformanceHose leak/blockage, wiring, EGR valve position sensor, ECM
P1336Crankshaft Position Or Camshaft Position Sensor Input Signal ErrorWiring, CMP sensor, CKP sensor, ECM
P1340Camshaft Position Sensor 'B' Circuit Malfunction
P1349Fuel Level Sensor 'B' Circuit High Input
P1351Ignition Diagnostic Monitor Circuit Input Fault
P1352Ignition Coil 'A' Primary Circuit
P1353Ignition Coil 'B' Primary Circuit
P1354Ignition Coil 'C' Primary Circuit
P1355Ignition Coil 'D' Primary Circuit
P1356Loss Of Ignition Diagnostic Module Input To PCM
P1357Ignition Diagnostic Monitor Pulsewidth Not Defined
P1358Ignition Diagnostic Monitor Signal Out of Self-Test Range
P1359Spark Output Circuit Fault
P1360Ignition Coil 'A' Secondary Circuit Malfunction
P1361Ignition Coil 'B' Secondary Circuit Malfunction
P1362Ignition Coil 'C' Secondary Circuit Malfunction
P1363Ignition Coil 'D' Secondary Circuit Malfunction
P1364Ignition Coil Primary Circuit Fault
P1365Ignition Coil Secondary Circuit Failure
P1369Engine Temperature Light Monitor Failure
P1378Fuel Injection Control Module Circuit Low VoltageFuse, wiring, FICM relay
P1379Fuel Injection Control Module Circuit High VoltageWiring, alternator, ECM
P1380Variable Cam Timing Solenoid 'A' Circuit ConditionWiring, CMP actuator, ECM
P1381Variable Cam Timing Over Advance Bank 1Wiring, timing belt/chain, CMP actuator, low oil pressure
P1383Variable Cam Timing Over Retarded Bank 1Wiring, timing belt/chain, CMP actuator
P1385Variable Cam Timing Solenoid 'B' MalfunctionWiring, CMP actuator, ECM
P1386Variable Cam Timing Over Advance Bank 2Wiring, timing belt/chain, CMP actuator, low oil pressure
P1388Variable Cam Timing Over Retarded Bank 2Wiring, timing belt/chain, CMP actuator
P1389Glow Plug Circuit High Side Low Input
P1390Octane Adjust Out of Self-Test Range
P1391Glow Plug Circuit Low Input Bank 1
P1392Glow Plug Circuit High Input Bank 1
P1393Glow Plug Circuit Low Input Bank 2
P1394Glow Plug Circuit High Input Bank 2
P1395Glow Plug Monitor Fault Bank 1
P1396Glow Plug Monitor Fault Bank 2
P1397System Voltage Out Of Self Test RangeWiring, battery, alternator
P1399Glow Plug Circuit High Side High Input
P1400 – P1499 (Emission control)
P1400Differential Pressure Feedback Electronic Sensor Circuit Low VoltageWiring, EGR pressure sensor, ECM
P1401DPFE Sensor Circuit HighWiring, EGR pressure sensor, ECM
P1402EGR Metering Orifice Restricted
P1403Differential Pressure Feedback Electronic Sensor Hoses Reversed
P1404EGR Valve Stuck Closed
P1405DPF EGR Sensor Circuit High Voltage Detected EGR hoses
P1406DPFE Sensor Circuit Downstream HoseEGR hoses
P1407Exhaust Gas Recirculation Flow Out Of Self-Test Range
P1408EGR Flow Out Of Self-Test RangeWiring, EGR hoses, EGR valve, EGR solenoid,ECM
P1409EGR Vacuum Regulator Solenoid Circuit MalfunctionWiring, EGR solenoid, ECM
P1410EGR Barometric Pressure Sensor VREF Voltage
P1411Secondary Air Injection Downstream FlowAIR hoses, AIR pump, AIR solenoid
P1413Secondary Air Injection System Monitor Circuit Low VoltageWiring, AIR solenoid, AIR pump, ECM
P1414Secondary Air Injection System Monitor Circuit High VoltageWiring, AIR solenoid, ECM
P1420Catalyst Temperature Sensor
P1421Catalyst Damage
P1422Exhaust Gas Ignition Temperature Sensor
P1431Misfire Monitor Disabled Unable to Learn Trigger Wheel Profile
P1432Thermostat Heater Control Circuit FailureWiring, engine thermostat heater, ECM
P1433A/C Refrigerant Temperature Circuit Low
P1434A/C Refrigerant Temperature Circuit High
P1435A/C Refrigerant Temperature Circuit Range/Performance
P1436A/C Evaporator Air Temperature Circuit LowWiring, AlC evaporator temperature sensor, ECM
P1437A/C Evaporator Air Temperature Circuit HighWiring, AlC evaporator temperature sensor, ECM
P1438A/C Evaporator Air Temperature Circuit Range/Performance
P1442EVAP System Small Leak Detected
P1443EVAP Control System Purge Control Solenoid or Purge Control Valve FaultWiring, EVAP system hoses, EVAP canister,EVAP canister purge valve
P1444Purge Flow Sensor Circuit Input Low
P1445Purge Flow Sensor Circuit High Condition
P1449EVAP System Unable To Hold Vacuum
P1450Unable to Bleed Up Bleed Fuel Tank VacuumWiring, EVAP system hoses, EVAP canister purge valve, fuel filler cap blocked
P1451EVAP Control System Canister Vent Solenoid Circuit MalfunctionWiring, EVAP canister purge valve, ECM
P1452Unable To Bleed Up Fuel Tank Vacuum
P1455Exhaust Gas Temperature Sensor 1 Range/Performance
P1457Unable To Pull Vacuum In Tank
P145EPositive crankcase ventilation (PCV) heatercircuit malfunctionWiring, PCV valve
P1460Wide Open Throttle Air Conditioning Cutoff Circuit MalfunctionWiring, WOT relay, ECM
P1461Air Conditioning Pressure Sensor Circuit HighWiring, AlC refrigerant pressure sensor, ECM
P1462Air Conditioning Pressure Sensor Circuit LowWiring, AlC refrigerant pressure sensor, ECM
P1463Air Conditioning Pressure Sensor Insufficient Pressure ChangeWiring, AlC system -mechanical fault, AlC refrigerant pressure sensor, AlC compressor clutch
P1464Air Conditioning Demand Out Of Self Test RangeWiring, AlC ON -during self-test, WOT relay (AlC cut-out), ECM
P1465Air Conditioning Relay Circuit Malfunction
P1466A/C Refrigerant Temperature Sensor/Circuit Malfunction
P1469Low Air Conditioning Cycling PeriodWiring, AlC system -mechanical fault
P1473Fan Secondary High With Fans Off
P1474Low Fan Control Primary CircuitWiring, engine coolant blower motor relay, ECM
P1477Medium Cooling Fan Control Primary Circuit FailureWiring, engine coolant blower motor relay, ECM
P1479High Fan Control Primary CircuitWiring, engine coolant blower motor relay, ECM
P1480Fan Secondary Low With Low Fans On
P1481Fan Secondary Low Eith High Fans On
P1482SCP
P1483Power to Cooling Fan Exceeded Normal Draw
P1484Open Power Ground To Variable Load Control Module
P1485Engine Gas Recirculation Valve Circuit Malfunction
P1487EGR Check Solenoid Circuit Failure
P1489PCV Heater Control Circuit FaultWiring, crankcase breather heater
P1500 – P1599 (Vehicle or idle speed control)
P1500Vehicle Speed SensorWiring, VSS, ECM
P1501Vehicle Speed Sensor Out Of Self Test RangeElectro-magnetic interference
P1502Vehicle Speed Sensor IntermittentWiring, VSS/ABS wheel speed sensors
P1504Intake Air Control Circuit MalfunctionWiring, lAC valve, ECM
P1505Idle Air Control System at Adaptive Clip
P1506Idle Air Control Overspeed ErrorWiring, lAC valve, vacuum leaks, ECM
P1507Idle Air Control Under Speed ErrorWiring, lAC valve, hose blocked, ECM
P1512Intake Manifold Runner Control Input Error Bank 1Wiring, mechanical fault, ECM
P1513Intake Manifold Runner Control Stuck Closed Bank 2Wiring, mechanical fault, ECM
P1516Intake Manifold Runner Control Input Error Bank 1Wiring, mechanical fault
P1517Intake Manifold Runner Control Input Error Bank 2Wiring, mechanical fault
P1518Intake Manifold Runner Control Fault Stuck OpenWiring, IMRC actuator, ECM
P1519Intake Manifold Runner Control Fault Stuck ClosedWiring, IMRC actuator, ECM
P151AIntake manifold runner control (IMRC) module -malfunctionWiring, IMRC actuator, ECM
P1520Intake Manifold Runner Control Circuit FaultWiring, mechanical fault, vacuum hoses, IMRC actuator, ECM
P1530Open or Short to A/C Compressor Clutch Circuit
P1531Invalid Test Accelerator Pedal Movement
P1532Intake Manifold Communication Control Circuit Bank 2
P1533AAI Circuit Malfunction
P1534Inertia Switch Activated
P1536Parking Brake Switch Circuit FailureWiring short circuit to ground/positive, wiring open circuit, low brake fluid
P1537Intake Manifold Runner Control Stuck Open Bank 1Wiring, hoses blocked, mechanical fault, ECM
P1538Intake Manifold Runner Control Stuck Open Bank 2Wiring, hoses blocked, mechanical fault, ECM
P1539Power to A/C Compressor Clutch Circuit Exceeded Normal Current Draw
P1548Engine Air Filter Restriction
P1549Intake Manifold Communication Control Circuit MalfunctionWiring, intake manifold air control solenoid, ECM
P1550Power Steering Pressure Sensor MalfunctionWiring, PSP sensor, ECM
P1561Brake Line Pressure Sensor Circuit
P1565Speed Control Command Switch Out of Range HighWiring, CPP switch, BPP switch, cruise control module, cruise control master switch, VSS
P1566Speed Control Command Switch Out of Range LowWiring, CPP switch, BPP switch, cruise control module, cruise control master switch, VSS
P1567Speed Control Output Circuit ContinuityWiring, CPP switch, BPP switch, cruise control module, cruise control master switch, VSS
P1568Speed Control Unable To Hold SpeedWiring, CPP switch, BPP switch, cruise control module, cruise control master switch, VSS
P1572Brake Pedal Switch Circuit MalfunctionWiring, BPP switch, brake fluid pressure (BFP) switch, ECM
P1573Throttle Position Not Available
P1574Stop Lamp Switch Circuit
P1575Pedal Position Out of Self Test Range
P1576Accelerator Pedal Position Sensor Signal Malfunction
P1577Pedal Position Sensor Disagreement
P1578ETC Power Less Than Demand
P1579Electronic Throttle Control In Power Limiting Mode
P1580Electronic Throttle Monitor PCM Override
P1581Electronic Throttle Monitor Malfunction
P1582Electronic Throttle Monitor Data AvailableAirbag deployment
P1583Electronic Throttle Monitor Cruise Disable
P1584Throttle Control Unit Input Circuit Malfunction
P1585Throttle Control Unit Malfunction
P1586Throttle Control Unit Throttle Position Malfunction
P1587Throttle Control Unit Modulated Command Malfunction
P1588Throttle Control Unit Detected Loss of Return Spring
P1589Throttle Control Unit Unable To Control Desired Throttle Angle
P1600 – P1699 (ECM – computer output circuit)
P1600Loss of KAM Power Open Circuit
P1605PCM Keep Alive Memory Test Error ConditionsWiring, battery terminal corrosion, loose battery connection, ECM
P1608Watchdog Malfunction
P1610Engine control module (ECM)Incorrect programming
P1611Engine control module (ECM)Incorrect programming
P1615Engine control module (ECM)Incorrect programming
P1616Engine control module (ECM)Incorrect programming
P1617Engine control module (ECM)Incorrect programming
P1618Engine control module (ECM)Incorrect programming
P1625Voltage to Vehicle Load Control Module Fan Circuit Not detected
P1626Voltage to Vehicle Load Control Module Circuit Not detected
P1633Keep Alive Power Voltage Too Low Wiring, ECM
P1634Data Output Link Circuit Failure
P1635Tire / Axle Ratio Out of Acceptable RangeIncorrect tire size, incorrect axle ratio, incorrect vehicle 10 configuration
P1636Inductive Signature Chip Communication ErrorECM
P1639Vehicle ID Block Corrupted or Not ProgrammedIncorrect vehicle 10 configuration, ECM
P1640Powertrain DTCs Available in Another ModuleP-codes stored in another control module
P1641Fuel Pump Driver Module Fault ConditionsWiring, fuel pump relay, fuel pump, ECM
P1642Fuel Pump Monitor Circuit High Input
P1643Fuel Pump Monitor Circuit Low Input
P1644Fuel Pump Speed Control Circuit Malfunction
P1646Linear O2 Sensor Control Chip Bank 1Non OEM accessories, ECM programming, ECM
P1647Linear O2 Sensor Control Chip Bank 2Non OEM accessories, ECM programming, ECM
P1650Power Steering Pressure Switch Out of Self-Test RangeWiring, PSP switch, steering wheel turned during self-test, ECM
P1651Power Steering Pressure Switch Input MalfunctionWiring, vehicle towed with engine running, PSP switch, OTC not erased, ECM
P1656CAN Link PCM Circuit Network
P1657Skip Shift 1 To 4 Upshift System Control Circuit
P1660Output Circuit Check Signal High
P1661Output Circuit Check Signal Low
P1662Injector control module relay -circuit malfunctionWiring, fuses, injector control module relay
P1663Fuel Demand Command Signal Circuit MalfunctionWiring open circuit/short circuit to ground, injector control module, ECM
P1664Injection Pump Control Module Faulty
P1667Cylinder identification -circuit malfunctionWiring open circuit/short circuit to ground, injector control module relay, injector control module,ECM
P1668Engine control module (ECM)/injector control module -communication errorWiring open circuit/short circuit to ground, injector control module relay, injector control module,ECM
P1670Electronic Feedback Signal Not DetectedWiring open circuit/short circuit to ground, injector control module relay, injector control module, ECM
P1674Control Module Software Corrupted Wiring, software incompatibility, ECM
P1690Wastegate Solenoid Circuit MalfunctionWiring open circuit/short circuit to ground, turbocharger (TC) wastegate control solenoid,ECM
P1700 – P1799 (Transmission)
P1700Transmission System Problems
P1701Reverse Engagement Error Conditions
P1702Transmission range (TR) sensor -circuit intermittentIncorrect adjustment, wiring, TR sensor
P1703Brake On/Off Switch Out of Self-Test RangeWiring, brake pedal depressed during self-test, rear electronic module/lights control module, BPP switch, ECM
P1704Transmission System ConditionsIncorrect adjustment, wiring, TR sensor
P1705Manual Lever Position Sensor Out of Self-Test RangeWiring, TR sensor
P1706High Vehicle Speed Observed in Park
P1707Transfer Case Neutral Indicator Hard Fault Present
P1709Park or Neutral Position Switch Out of Self-Test RangeWiring, PNP switch/CPP switch, ECM
P1710No Change In Transmission Fluid Temperature Signal
P1711Transmission Fluid Temperature Sensor Out of Self-Test RangeTransmission not at normal operating temperature -repeat test
P1712Trans Torque Reduction Request Signal Malfunction
P1713Transmission System ConditionsWiring, TFT sensor
P1714Shift Solenoid 'A' FaultWiring, SS, ECM/TCM
P1715Shift Solenoid 'B' FaultWiring, SS, ECM/TCM
P1716Transmission System Conditions
P1717Transmission System Conditions
P1718Transmission System ConditionsWiring, TFT sensor
P1719Steering Sensor High Input
P1720Vehicle Speed Meter Circuit Malfunction
P1721Gear 1 Incorrect Ratio
P1722Gear 2 Incorrect Ratio
P1723Gear 3 Incorrect Ratio
P1724Gear 4 Incorrect Ratio
P1725Insufficient Engine Speed Increase During Self TestRepeat test
P1726Insufficient Engine Speed Decrease During Self TestRepeat test
P1727Transmission Slip Fault Conditions
P1728Transmission Slip ErrorTCC
P17294x4 Low Switch ErrorWiring, four wheel drive shift control module, ECM
P17311-2 Shift Malfunction
P1732Engine Overspeed Malfunction
P1733Gearshift Load Control Malfunction
P1740Transmission System ConditionsWiring, TCC solenoid, ECM/TCM
P1741Torque Converter Clutch Control Error
P1742Torque Converter Clutch Solenoid Failed On Conditions
P1743Torque Converter Clutch Solenoid Failed On Conditions
P1744Torque Converter Clutch System Stuck in Off PositionWiring, TCC, TCM
P1745Line Pressure Too High For Too Long
P1746Electronic Pressure Control Solenoid Low ConditionsWiring, TFP solenoid, TCM, ECM
P1747Electronic Pressure Control Solenoid 'A' Short CircuitWiring, TFP solenoid, ECM
P1748Electronic Pressure Control Malfunction
P1749Electronic Pressure Control Solenoid Failed Low Conditions
P1751Shift Solenoid 1 Performance Conditions
P1754Coast Clutch Solenoid Circuit MalfunctionWiring, coast clutch solenoid
P1756Shift Solenoid 2 Performance Conditions
P1760Transmission System Fault ConditionsWiring, TFP solenoid, TCM
P1761Shift Solenoid 3 Performance Conditions
P1762Overdrive Band Failed Off
P1766Shift Solenoid 'D' Performance
P1767Torque Converter Clutch Solenoid Circuit Malfunction
P1768Performance / Normal / Winter Mode Input Malfunction
P1770Overrun Clutch Solenoid Valve Malfunction
P1771Throttle Position Sensor Open Circuit
P1772Throttle Position Sensor Short Circuit
P1779Transmission Control Indicator Lamp Circuit Malfunction
P1780Transmission Control Switch Circuit is Out of Self-Test RangeWiring, transmission control switch, ECM
P17814x4 Low Switch Out of Self-Test Range ConditionsWiring, four wheel drive shift control module, 4x4L switch, ECM
P1782P/ES Circuit Out Of Self Test Range
P1783Transmission Over-Temperature ConditionWiring, TFT sensor, TCM, ECM
P1784Transmission System First or Reverse Gear Fault Conditions
P1785Transmission System First or Second Gear Fault Conditions
P1786Transmission System Second or Third Gear Fault
P1787Transmission System Third or Fourth Gear Fault
P17883-2 Timing/Coast Clutch Solenoid Circuit Open Conditions
P17893-2 Timing/Coast Clutch Solenoid Circuit Shorted Conditions
P1793Ignition Supply Malfunction
P1795Idle Switch Circuit Malfunction
P1797Park/Neutral Position Switch Signal Malfunction
P1804Transmission 4-Wheel Drive High Indicator Circuit Failure
P1806Transmission 4-Wheel Drive High Indicator Short Circuit To Battery
P1807Transmission 4-Wheel Drive High Indicator Short Circuit To Ground
P1808Transmission 4-Wheel Drive Low Indicator Circuit Failure
P1809Transmission 4-Wheel Drive Low Indicator Open Circuit
P1810Transmission Fluid Pressure Valve Position Switch Circuit
P1812Transmission 4-Wheel Drive Mode Select Circuit Failure
P1815Transmission 4-Wheel Drive Mode Select Short Circuit To Ground
P1819Transmission Neutral Safety Switch Short Circuit To Ground
P1820Transmission Transfer Case Clockwise Shift Relay Coil Circuit Failure
P1822Transmission Transfer Case Clockwise Shift Relay Coil Short Circuit To Battery
P1824Transmission 4-Wheel Drive Clutch Relay Circuit Failure
P1826Transmission 4-Wheel Drive Low Clutch Relay Circuit To Battery
P1827Transmission 4-Wheel Drive Low Clutch Relay Circuit To Ground
P1828Transmission Transfer Case Counter Clockwise Shift Relay Coil Circuit Failure
P1829Transmission Transfer Case Counter Clockwise Shift Relay Coil Open Circuit
P1830Transmission Transfer Case Counter Clockwise Shift Relay Coil Short Circuit To Battery
P1832Transmission Transfer Case Differential Lock-Up Solenoid Circuit Failure
P1834Transmission Transfer Case Differential Lock-Up Solenoid Short Circuit To Battery
P1838Transmission Transfer Case Shift Motor Circuit Failure
P1839Transmission Transfer Case Shift Motor Open Circuit
P1840Transmission Transfer Case Shift Motor Short Circuit To Battery
P1846Transmission Transfer Case Contact Plate 'A' Circuit Failure
P1848Transmission Transfer Case Contact Plate 'A' Short Circuit To Battery
P1849Transmission Transfer Case Contact Plate 'A' Short Circuit To Ground
P1850Transmission Transfer Case Contact Plate 'B' Circuit Failure
P1854Transmission Transfer Case Contact Plate 'C' Circuit Failure
P1855Transmission Transfer Case Contact Plate 'C' Open Circuit
P1856Transmission Transfer Case Contact Plate 'C' Short Circuit To Battery
P1857Transmission Transfer Case Contact Plate 'C' Short Circuit To Ground
P1858Transmission Transfer Case Contact Plate 'D' Circuit Failure
P1859Transmission Transfer Case Contact Plate 'D' Open Circuit
P1861Transmission Transfer Case Contact Plate 'D' Short Circuit To Ground
P1862Transmission Transfer Case Contact Plate Power Circuit Failure
P1863Transmission Transfer Case Contact Plate Power Open Circuit
P1865Transmission Transfer Case Contact Plate Power Short To Ground
P1866Transmission Transfer Case System Concern Servicing Required
P1867Transmission Transfer Case Contact Plate General Circuit Failure
P1869Lamp Air Bag Warning Indicator Circuit Open or Short to Ground
P1876Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Failure
P1877Transmission Transfer Case 2-Wheel Drive Solenoid Circuit Short To Battery
P1878Transmission Transfer Case Disengaged Solenoid Circuit Failure
P1881Engine Coolant Level Switch Circuit Failure
P1882Engine Coolant Level Switch Circuit Short to Ground
P1883Engine Coolant Level Switch Circuit Failure
P1884Engine Coolant Level Lamp Circuit Short to Ground
P1889Drive Train Axles Bearings Problem
P1891Transmission Transfer Case Contact Plate Ground Return Open Circuit
P1900 – P1999 (Transmission)
P1900Output Shaft Speed Circuit Intermittent MalfunctionWiring, poor connection, OSS sensor, ECMITCM
P1901Turbine Shaft Speed Sensor Circuit IntermittentWiring, poor connection, TSS sensor, ECMITCM
P1902Kickdown Solenoid Relay Control Circuit
P1903Kickdown Solenoid Circuit Low Voltage
P1904Kickdown Solenoid Circuit High Voltage
P1908Transmission Pressure Circuit Solenoid Open or Short to Ground
P1909Transmission Temperature Sensor Circuit Open or Shorted to Power Or Ground
P1910Reversing lamps -circuit malfunctionWiring, reverse gear position switch, ECM
P1919Engine Coolant Temperature Signal
P1922Fuel Additive Level Circuit Malfunction
P1924Fuel Additive Level Circuit Low
P1925Fuel Additive Level Circuit High
P1926Fuel Additive Level Circuit Range/Performance
P1927Fuel Additive Level Too Low/Empty
P1928Fuel Additive Level Pump Control Circuit/Open
P1929Fuel Additive Level Pump Control Circuit Performance
P1930Fuel Additive Level Too Low/Empty
P1931Fuel Additive Pump Control Circuit/Open
P1932Fuel Additive Pump Control Circuit Performance
P1933Fuel Additive Pump Control Circuit Low
P1934Fuel Additive Pump Control Circuit High
P1935Fuel Additive Level Low
P1936Fuel Level Signal
P1937Vehicle Speed Signal
P1938Brake Switch/Sensor Signal
P1939Clutch Switch/Sensor Signal