| Flash code | OBD·II code | Fault location | Probable cause |
| – | PO, P2,
uo | Refer to OBD-11 trouble code tables | – |
| 1000 | U1000 | CAN communication line – signal malfunction | Wiring |
| 1001 | U1001 | CAN communication line – signal malfunction | Wiring |
| 1010 | U1010 | CAN communication line – initialization malfunction | ECM |
| 1031 | P1031 | Heated oxygen sensor (H02S), bank 1,
heater – voltage low | Wiring, H02S |
| 1032 | P1032 | Heated oxygen sensor (H02S), bank 1, heater – voltage high | Wiring, H02S |
| 1051 | P1051 | Heated oxygen sensor (H02S), bank 2, heater – voltage low | Wiring, H02S |
| 1052 | P1052 | Heated oxygen sensor (H02S), bank 2, heater – voltage high | Wiring, H02S |
| 1065 | P1065 | Engine control module (ECM) – battery voltage supply | Wiring, fuse, ECM |
| 1078 | P1078 | Exhaust valve timing control position sensor, bank 1 – circuit malfunction | Wiring, exhaust valve timing control position sensor, ECM |
| 1084 | P1084 | Exhaust valve timing control position sensor, bank 2 – circuit malfunction | Wiring, exhaust valve timing control position sensor, ECM |
| 1102 | P1102 | Mass air flow (MAF) sensor – range/performance problem | Wiring, MAF sensor, air leak, ECM |
| 1111 | P1111 | Intake valve timing control s·olenoid, bank 1 – circuit malfunction | Wiring, intake valve control solenoid, ECM |
| 1119 | P1119 | Engine coolant temperature (ECT)
sensor – circuit malfunction | Wiring, engine coolant temperature
(ECT) sensor |
| 1121 | P1121 | Throttle valve position motor – malfunction | Throttle valve position motor |
| 1122 | P1122 | Throttle valve position motor – range/performance problem | Wiring, throttle valve position motor |
| 1124 | P1124 | Throttle valve position motor relay – short circuit | Wiring, throttle valve position motor relay |
| 1126 | P1126 | Throttle valve position motor relay – open circuit | Wiring, throttle valve position motor relay |
| 1128 | P1128 | Throttle valve position motor – short circuit | Wiring, throttle valve position motor |
| 1130 | P1130 | Intake manifold air control solenoid – malfunction | Wiring, intake manifold air control solenoid, ECM |
| 1136 | P1136 | Intake valve timing control solenoid, bank 2 – circuit malfunction | Wiring, intake valve control solenoid, ECM |
| 1140 | P1140 | Intake valve timing control position sensor, bank 1 – circuit malfunction | Wiring, intake valve control position sensor, crankshaft (CKP) sensor, camshaft position (CMP) sensor, mechanical fault, ECM |
| 1143 | P1143 | Heated oxygen sensor (H02S) 1, bank 1 – voltage low | Wiring, mixture, H02S, ECM |
| 1144 | P1144 | Heated oxygen sensor (H02S) 1, bank 1 – voltage high | H02S, fuel pressure, fuel system, ECM |
| 1145 | P1145 | Intake valve timing control position sensor, bank 2 – circuit malfunction | Wiring, intake valve control position sensor, crankshaft (CKP) sensor, camshaft position (CMP) sensor, mechanical fault, ECM |
| 1146 | P1146 | Heated oxygen sensor (H02S) 2, bank 1 – minimum voltage monitoring | Wiring, H02S, fuel system, injector, ECM |
| 1147 | P1147 | Heated oxygen sensor (H02S) 2, bank 1 – maximum voltage monitoring | Wiring, H02S, fuel system, injector, intake air leaks, ECM |
| 1148 | P1148 | Closed loop control – bank 1 – inoperative | Wiring, H02S front, ECM |
| 1163 | P1163 | Heated oxygen sensor (H02S) 1, bank 2 – voltage low | Wiring, mixture, H02S, ECM |
| 1164 | P1164 | Heated oxygen sensor (H02S) 1, bank 2 – voltage high | H02S, fuel pressure, fuel system, ECM |
| 1166 | P1166 | Heated oxygen sensor (H02S) 2, bank 2 – minimum voltage monitoring | Wiring, H02S, fuel system, injector, ECM |
| 1167 | P1167 | Heated oxygen sensor (H02S) 2, bank 2 – maximum voltage monitoring | Wiring, H02S, fuel system, injector, intake air leaks, ECM |
| 1168 | P1168 | Closed loop control – bank 2 – inoperative | Wiring, H02S front, ECM |
| 1211 | P1211 | ABS/TCS control module – malfunction | Wiring, ABS/TCS control module |
| 1212 | P1212 | ABS control module/traction control module – communication failure | Wiring, CAN data bus, ABS control module |
| 1217 | P1217 | Engine coolant over temperature condition | Wiring, coolant fan, coolant hoses, thermostat, radiator, coolant temperature switch |
| 1220 | P1220 | Fuel pump control module – circuit malfunction | Wiring, fuel pump speed resistor, fuel pump control module |
| 1223 | P1223 | Throttle position (TP) sensor 2 – voltage low | Wiring, TP sensor, ECM |
| 1224 | P1224 | Throttle position (TP) sensor 2 – voltage high | Wiring, TP sensor, ECM |
| 1225 | P1225 | Closed throttle position, learning – voltage too low | Throttle valve position motor, TP sensor 1 & 2 |
| 1226 | P1226 | Closed throttle position, learning – unsuccessful | Throttle valve position motor, TP sensor 1 & 2 |
| 1227 | P1227 | Accelerator pedal position (APP)
sensor 2 – voltage low | Wiring, APP sensor, ECM |
| 1228 | P1228 | Accelerator pedal position (APP)
sensor 2 – voltage high | Wiring, APP sensor, ECM |
| 1229 | P1229 | Sensor supply voltage – short circuit | Wiring, APP sensor, TP sensor, MAF sensor, EVAP sensor, PS sensor, refrigerant sensor, ECM |
| 1233 | P1233 | Electronic throttle control – performance | Wiring, throttle control motor |
| 1234 | P1234 | Throttle motor position sensor – learning problem, voltage low, bank 2 | Wiring, TP sensor 1, TP sensor 2 |
| 1235 | P1235 | Throttle motor position sensor – learning problem, bank 2 | Wiring, TP sensor 1, TP sensor 2 |
| 1236 | P1236 | Throttle control motor – short circuit | Wiring, throttle control motor |
| 1238 | P1238 | Throttle control motor – malfunction | Throttle control motor |
| 1239 | P1239 | Throttle position (TP) – performance | Wiring, throttle actuator, TP sensor |
| 1271 | P1271 | Heated oxygen sensor (H02S), bank 1 – voltage low | Wiring, H02S |
| 1272 | P1272 | Heated oxygen sensor (H02S), bank 1 – voltage high | Wiring, H02S |
| 1273 | P1273 | Heated oxygen sensor (H02S), bank 1 – lean mixture | H02S, fuel pressure, injectors, intake air leak |
| 1274 | P1274 | Heated oxygen sensor (H02S), bank 1 – rich mixture | H02S, fuel pressure, injectors |
| 1276 | P1276 | Heated oxygen sensor (H02S), bank 1 – activity | Wiring, H02S |
| 1278 | P1278 | Heated oxygen sensor (H02S), bank 1 – slow response | Wiring, fuel pressure, injectors, MAF sensor, PCV, H02S, intake air leaks, exhaust leaks |
| 1279 | P1279 | Heated oxygen sensor (H02S), bank 1 – slow response | Wiring, fuel pressure, injectors, MAF sensor, PCV, H02S, intake air leaks, exhaust leaks |
| 1281 | P1281 | Heated oxygen sensor (H02S), bank 2 – voltage low | Wiring, H02S |
| 1282 | P1282 | Heated oxygen sensor (H02S), bank 2 – voltage high | Wiring, H02S |
| 1283 | P1283 | Heated oxygen sensor (H02S), bank 2 – lean mixture | H02S, fuel pressure, injectors, intake air leak |
| 1284 | P1284 | Heated oxygen sensor (H02S), bank 2 – rich mixture | H02S, fuel pressure, injectors |
| 1286 | P1286 | Heated oxygen sensor (H02S), bank 2 – activity | Wiring, H02S |
| 1288 | P1288 | Heated oxygen sensor (H02S), bank 2 – slow response | Wiring, fuel pressure, injectors, MAF sensor, PCV, H02S, intake air leaks, exhaust leaks |
| 1289 | P1289 | Heated oxygen sensor (H02S), bank 2- slow response | Wiring, fuel pressure, injectors, MAF sensor, PCV, H02S, intake air leaks, exhaust leaks |
| 1290 | P1290 | Throttle control motor relay – voltage low | Wiring, relay |
| 1402 | P1402 | Exhaust gas recirculation (EGR) system – excessive flow | Wiring, EGR/EVAP valve, EGR valve, EGRT sensor, EGR back pressure transducer, ECM |
| 1421 | P1421 | Cold start emission control – malfunction | Intake/exhaust leak/blockage, mechanical fault, idle speed control (ISC) system, ignition control, engine coolant temperature (ECT) sensor, H02S, ECM |
| 1442 | P1442 | Evaporative emission (EVAP) canister purge system – small leak | Wiring, fuel tank/cap, hose leak/blockage, EVAP valve/canister, EVAP vent valve, BARO sensor, MAP/BARO switching valve, ECM |
| 1444 | P1444 | Evaporative emission (EVAP) canister purge system – control valve malfunction | Wiring, EVAP pressure sensor, hose leak/blockage, EVAP valve/canister, ECM |
| 1446 | P1446 | Evaporative emission (EVAP) canister purge system – vent control valve malfunction | Wiring, EVAP pressure sensor, hose leak/blockage, EVAP vent valve, EVAP canister contaminated, ECM |
| 1448 | P1448 | Evaporative emission (EVAP) canister purge system – vent control valve malfunction | Wiring, EVAP vent valve, EVAP pressure sensor, hose leak/blockage, EVAP canister contaminated, EVAP vacuum cut valve, ECM |
| 1456 | P1456 | Evaporative emission (EVAP) canister purge system – very small leak | Wiring, fuel tank/cap, hose leak/blockage, EVAP valve/canister, EVAP vent valve, BARO sensor, MAP/BARO switching valve, ECM |
| 1464 | P1464 | Fuel tank level sensor- voltage high | Wiring, fuel tank level sensor |
| 1480 | P1480 | Engine coolant blower motor control – circuit malfunction | Wiring, blower motor speed control solenoid valve, ECM |
| 1490 | P1490 | Evaporative emission (EVAP) canister purge system – bypass vacuum valve malfunction | Wiring, EVAP bypass/cut valve, hose leak/blockage, ECM |
| 1491 | P1491 | Evaporative emission (EVAP) canister purge system – bypass vacuum valve malfunction | Wiring, EVAP vacuum cut/bypass valve, hose leak/blockage, EVAP pressure sensor/vent valve, EVAP canister contaminated, ECM |
| 1550 | P1550 | Battery condition sensor – malfunction | Wiring; battery condition sensor |
| 1551 | P1551 | Battery condition sensor – low voltage | Wiring, battery condition sensor |
| 1552 | P1552 | Battery condition sensor – high voltage | Wiring, battery condition sensor |
| 1553 | P1553 | Battery condition sensor – sigrTal too high | Wiring, battery condition sensor |
| 1554 | P1554 | Battery condition sensor – signal too low | Wiring, battery condition sensor |
| 1564 | P1564 | Cruise control master switch – malfunction | Wiring, cruise control master switch, ECM |
| 1572 | P1572 | Cruise control brake switch – circuit malfunction | Wiring, cruise control brake switch, stop lamp switch, clutch pedal switch, ECM |
| 1574 | P1574 | Cruise control vehicle speed sensor – signal malfunction | Wiring, TCM – DTC’s stored, ABS/TCS control module – DTC’s stored, instrument panel, ECM |
| 1610 | P1610 | Ignition key/engine control module (ECM) – malfunction | Incorrect ignition key, ECM |
| 1611 | P1611 | Immobilizer control module/engine control module (ECM) – coding | Immobilizer control module/ECM incorrectly coded
|
| 1612 | P1612 | Immobilizer control module/engine control module (ECM) communication – malfunction | Wiring, immobilizer control module, ECM |
| 1613 | P1613 | Engine control module (ECM), immobilizer function – internal failure | ECM |
| 1614 | P1614 | Immobilizer control module/module coding plug communication – no signal | Wiring, immobilizer control module, module coding plug |
| 1615 | P1615 | Ignition key/immobilizer control module communication – malfunction | Incorrect ignition key, immobilizer control module |
| 1700 | P1700 | CVT shift control – malfunction | TCM trouble code(s) stored |
| 1705 | P1705 | AT -throttle position (TP) sensor- voltage high or low | Wiring, TP sensor, mechanical fault, ECM |
| 1706 | P1706 | Park/neutral position (PNP) switch – circuit malfunction | Wiring, PNP switch, instrument panel, TCM |
| 1715 | P1715 | Automatic transmission input speed sensor – malfunction | Wiring, TCM |
| 1716 | P1716 | Automatic transmission turbine revolution sensor – circuit malfunction | Wiring, turbine sensor 1, turbine sensor 2, ECM |
| 1720 | P1720 | Vehicle speed sensor (VSS) – signal variation | Wiring, mechanical fault, ABS/TCS
control module, TCM |
| 1730 | P1730 | Automatic transmission fail safe function – circuit malfunction | Wiring, transmission clutches, transmission solenoid valves, transmission pressure switches |
| 1740 | P1740 | CVT lock-up select solenoid valve – malfunction | Wiring, lock-up select solenoid valve |
| 1752 | P1752 | Automatic transmission input clutch – solenoid valve malfunction | Wiring, input clutch solenoid valve |
| 1754 | P1754 | Automatic transmission input clutch – solenoid valve malfunction | Wiring, input clutch solenoid valve, transmission pressure switch 3 |
| 1757 | P1757 | Automatic transmission front brake – solenoid valve malfunction | Wiring, front brake solenoid valve |
| 1759 | P1759 | Automatic transmission front brake – solenoid valve malfunction | Wiring, front brake solenoid valve, transmission pressure switch 1 |
| 1760 | P1760 | AT- overrun clutch solenoid – voltage low | Wiring, clutch solenoid, TCM |
| 1762 | P1762 | Automatic transmission direct clutch – solenoid valve malfunction | Wiring, direct clutch solenoid valve |
| 1764 | P1764 | Automatic transmission direct clutch – solenoid valve malfunction | Wiring, direct clutch solenoid valve, transmission pressure switch 5 |
| 1767 | P1767 | Automatic transmission high/low reverse – solenoid valve malfunction | Wiring, high/low reverse solenoid valve |
| 1769 | P1769 | Automatic transmission high/low reverse – solenoid valve malfunction | Wiring, high/low reverse solenoid valve, transmission pressure switch 6 |
| 1772 | P1772 | Automatic transmission low coast brake – solenoid valve malfunction | Wiring, low coast brake solenoid valve |
| 1774 | P1774 | Automatic transmission low coast brake – solenoid valve malfunction | Wiring, low coast brake solenoid valve, transmission pressure switch 2 |
| 1777 | P1777 | CVT step motor – circuit malfunction | Wiring, step motor |
| 1778 | P1778 | CVT step motor – mechanical malfunction | Step motor |
| 1780 | P1780 | Automatic transmission shift change – signal malfunction | Wiring, TCM, ECM |
| 1800 | P1800 | VIAS control solenoid – circuit malfunction | Wiring, VIAS control solenoid |
| 1805 | P1805 | Brake pedal position (BPP) switch – circuit malfunction | Wiring, BPP switch, ECM |