Infiniti FX35 – FX45 – G35 – G37 – M35 – M45 – QX56 (2003 – 2008) Trouble Code Info

Model Year Engine identification System
FX35 3.5L 2003-08 VQ35DE   ECCS
FX45 4.5L 2003-08 VK45DE   ECCS
G35 3.5L 2003-08 VQ35DE/VQ35HR   ECCS
G37 3.7L 2008 VQ37VHR   ECCS
M35 3.5L 2005-08 VQ35DE   ECCS
M45 4.5L 2003-08 VK45DE   ECCS
QX56 5.6L 2004-08 VK56DE   ECCS

General information

  • Refer to the front of this manual for general test conditions, terminology, detailed descriptions of wiring faults and a general trouble shooter for electrical and mechanical faults.
  • Engine control module  (ECM)  incorporates self-diagnosis function.
  • Malfunction indicator lamp (MIL) will illuminate if certain faults are recorded.
  • ECM operates in backup mode if sensors fail, to enable vehicle to be driven to workshop.
  • Trouble codes can be displayed by using a Scan Tool connected to the data link connector (DLC) 1, or by the malfunction indicator lamp (MIL).

NOTE: The use of a Scan Tool is essential to obtain full diagnostic information.

Accessing – Mode 1

  • Switch ignition ON.
  • Check MIL illuminates.
  • Start engine. Allow to idle.
  • If MIL extinguishes, no trouble codes have been recorded.
  • If MIL remains illuminated, access trouble codes.

Accessing – Mode 2

  • Ensure accelerator pedal is fully released.
  • Switch ignition ON. Do NOT start engine.
  • Wait 3 seconds.
  • Within 5 seconds, repeat the following 5 times:
o Fully depress accelerator pedal.
o Fully release accelerator pedal.
 FXG-1FXG-2
  • Wait 7 seconds.
  • Fully depress accelerator pedal.
  • After approximately 10 seconds MIL will start flashing.
  • Fully release accelerator pedal.
  • Self-diagnosis now in Mode 2.
  • Count flashes and compare with trouble code table.
  • Each trouble code consists of four groups of one or more flashes.
  • The first group of flashes indicate the ‘thousands’ of the trouble code [2] [A].
  • The second group of flashes indicate the ‘hundreds’ of the trouble code [2] [B).
  • The third group of flashes indicate the ‘tens’ of the trouble code [2] [C].
  • The fourth group of flashes indicate the ‘units’ of the trouble code [2] [D].
  • Ten flashes in a group indicate ‘0’.
  • A short pause separates each trouble code group [2] [E].
  • A long pause separates each trouble code [2] [F].
  • For example: Trouble code P1130 displayed [2].
  • Switch ignition OFF.
  • Self-diagnosis will return to Mode 1.

Erasing

  • Trouble codes can be erased by using a Scan Tool connected to the data link connector (DLC) or as follows:
  • Ensure accelerator pedal is fully released.
  • Switch ignition ON. Do NOT start engine.
  • Wait 3 seconds.
  • Within 5 seconds, repeat the following 5 times:
o Fully depress accelerator pedal.
o Fully release accelerator pedal.
  • Wait 7 seconds.
  • Fully depress accelerator pedal.
  • After approximately 10 seconds MIL will start flashing.
  • Fully release accelerator pedal.
  • Self-diagnosis now in Mode 2.
  • Fully depress accelerator pedal for more than 10 seconds.
  • Fully release accelerator pedal.

Trouble code  identification

Flash code OBD·II code Fault location Probable cause
PO, P2, uo Refer to OBD-11 trouble code tables
0 No self-diagnostic failure indicated
1000 U1000 CAN communication line – signal malfunction Wiring
1001 U1001 CAN communication line – signal malfunction Wiring
1010 U1010 CAN communication line – initialization malfunction Wiring, 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 Camshaft position (CMP) sensor, exhaust – low voltage Wiring, CMP
1084 P1084 Camshaft position (CMP) sensor, exhaust – high voltage Wiring, CMP
1102 P1102 MAF sensor – performance problem Wiring, MAF sensor
1111 P1111 Intake valve timing control solenoid, 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 motor – malfunction Throttle motor, ECM
1122 P1122 Throttle motor – circuit malfunction Wiring, throttle motor, ECM
1124 P1124 Throttle motor relay – short circuit Wiring, throttle motor, throttle motor relay, ECM
1126 P1126 Throttle motor relay – open circuit Wiring, throttle motor, throttle motor relay, ECM
1128 P1128 Throttle motor – short circuit Wiring, throttle motor, ECM
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 – voltage low Wiring, mixture, H02S, ECM
1147 P1147 Heated oxygen sensor (H02S) 2, bank 1 – voltage low Wiring, H025, fuel pressure, fuel system, ECM
1148 P1148 Closed loop control, bank 1 – inoperative Wiring, H025 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 H025, fuel pressure, fuel system, ECM
1166 P1166 Heated oxygen sensor (H02S) 2, bank 2 – voltage low Wiring, mixture, H02S, ECM
1167 P1167 Heated oxygen sensor (H02S) 2, bank 2 – voltage low Wiring, H025, fuel pressure, fuel system, ECM
1168 P1168 Closed loop control, bank 2 – inoperative Wiring, H02S front, ECM
1211 P1211 ABSITCS control module – malfunction Wiring, ABSfTCS control module, ECM
1212 P1212 ABS/TCS control module – communication malfunction Wiring, ABS/TCS control module, ECM
1217 P1217 Engine over temperature Cooling system, engine coolant blower motor
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 Throttle motor position sensor – learning problem, voltage low, bank 1 Wiring, TP sensor 1, TP sensor 2
1226 P1226 Throttle motor position sensor – learning problem, bank 1 Wiring, TP sensor 1, TP sensor 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 Engine control module (ECM) – sensor supply voltage low/high Wiring, APP sensor, throttle motor position sensor, MAF sensor, fuel tank pressure sensor, TP sensor(s), refrigerant pressure sensor
1233 P1233 Electronic throttle control – performance Wiring, throttle control motor
1234 P1234 Throttle motor position sensor – learning problem, voltage low, bank 2 Wiring, TP simsor 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, H025
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, H025, intake air leaks, exhaust leaks
1281 P1281 Heated oxygen sensor (H02S), bank 2 – voltage low Wiring, H025
1282 P1282 Heated oxygen sensor (H02S), bank 2 – voltage high Wiring, H025
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, EGRIEVAP 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, H025, ECM
1442 P1442 Evaporative emission (EVAP) canister purge system – small leak EVAP canister purge system, hose leak, EVAP pressure sensor/vent valve, fuel filler cap, ECM
1444 P1444 Evaporative emission (EVAP) canister purge control system – malfunction Wiring, EVAP valve, hoses, mechanical fault, ECM
1446 P1446 Evaporative emission (EVAP) canister purge control valve – malfunction Wiring, EVAP valve, mechanical fault, ECM
1448 P1448 Evaporative emission (EVAP) canister purge control valve – malfunction Wiring, EVAP valve, ECM
1456 P1456 Evaporative emission (EVAP) canister purge system – very small leak EVAP canister purge system, hose leak, EVAP pressure sensor/vent valve, fuel filler cap, ECM
1464 P1464 Fuel gauge tank sensor- voltage high Wiring, fuel gauge tank sensor, ECM
1480 P1480 Engine coolant blower motor control – circuit malfunction Wiring, blower motor speed control solenoid valve, ECM
1490 P1490 ·Evaporative emission (EVAP) canister purge control system – malfunction Wiring, vacuum cut valve bypass valve, mechanical fault, ECM
1491 P1491 Evaporative emission (EVAP) canister purge control system – malfunction Wiring, vacuum cut valve bypass valve, mechanical fault, 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 – signal too high Wiring, battery condition sensor
1554 P1554 Battery condition sensor – signal too low Wiring, battery condition sensor
1564 P1564 Cruise control master switch – circuit malfunction Wiring, cruise control master switch, ECM
1568 P1568 Cruise control master switch – signal out of specification Wiring, cruise control master switch, . ECM
1572 P1572 Cruise control brake pedal switch – circuit malfunction Wiring, brake pedal position (BPP) switch, cruise control brake pedal switch, ECM
1574 P1574 Cruise control vehicle speed sensor – signal malfunction Wiring, TCM – DTC’s stored, ABSfTCS control module – DTC’s stored, instrument panel, wheel speed sensor, 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, ECM
1715 P1715 Automatic transmission turbine shaft speed   (TSS) sensor- circuit malfunction Wiring, TSS sensor, TCM
1716 P1716 Automatic transmission turbine shaft speed   {TSS) sensor- circuit malfunction Wiring, TSS sensor 1, TSS sensor 2, ECM
1720 P1720 Vehicle speed sensor (VSS) – signal variation Wiring, TCM – DTC’s stored, ABSfTCS control module – DTC’s stored, instrument panel
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 Intake manifold air control solenoid – circuit malfunction Wiring, intake manifold air control solenoid
1805 P1805 Brake pedal position (BPP) switch – circuit malfunction Wiring, BPP switch