Infiniti G20 – I30 – J30 – QX4 (1994 – 2000) Trouble Code Info

Model Year Engine identification System
G20 2.0L 1994-96 SR20DE ECCS
I30 3.0L 1996-99 VQ30DE ECCS
J30 3.0L 1996-98 VG30DE ECCS
QX4 3.3L 1997-00 VG33E 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 [1], or by the malfunction indicator lamp (MIL).

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

GI-1

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

  • Access engine control module (ECM) 1 [3].
  • Switch ignition ON. Do NOT start engine.
  • Turn diagnostic mode selector on ECM fully clockwise [2]
  • Wait at least 2 seconds.
  • Turn diagnostic mode selector on ECM fully counterclockwise [2].
  • Self-diagnosis now in Mode 2.
  • MIL should flash.
  • Count flashes and compare with trouble code table.
o Long flashes indicate the ‘hundreds’ of the trouble code [3] [A].
o Short flashes indicate the ‘units’ of the trouble code [3] [C].
o A short pause separates each flash [3] [B].
o A long pause separates each trouble code [3] [D].
o For example: Trouble code 102 displayed [3].
  • Switch ignition OFF.
  • Self-diagnosis will return to Mode 1.
GI-2GI-3

Erasing

  • Trouble codes can be erased by using a Scan Tool connected to the data link connector (DLC) or as follows:
  • With the ignition switch ON and the engine control module (ECM) in diagnosis test mode 2.
  • Turn diagnostic mode selector on ECM fully clockwise [2].
  • Trouble codes are erased.
  • Switch ignition OFF.
  • Turn diagnostic mode selector on ECM fully counterclockwise [2].
  • Repeat checking procedure to ensure no data remains in ECM fault memory.

Trouble code  identification

Flash code OBD-11 code Fault location Probable cause
PO, P2,   uo Refer to OBD-11 trouble code tables
101 Camshaft position (CMP) sensor – circuit malfunction Wiring, CMP sensor, ECM
102 Mass air flow (MAF) sensor – circuit malfunction Wiring, MAF sensor, ECM
103 Engine coolant temperature (ECT) sensor – circuit malfunction Wiring, ECT sensor, ECM
104 Vehicle speed sensor (VSS) – circuit malfunction Wiring, VSS, ECM
107 ABSITCS communication line – malfunction Wiring, ABS/TCS control module, ECM, mechanical fault
111 P1447 Evaporative emission (EVAP) canister purge control system – malfunction Wiring, EVAP valve, mechanical fault, ECM
112 P1165 Intake manifold air control system -vacuum check switch circuit malfunction Wiring, vacuum check switch, hose leak/   blockage, air control solenoid, ECM
113 P1443 Evaporative emission (EVAP) canister purge control system – circuit malfunction Wiring, EVAP valve, ECM
114 Fuel trim RH – mixture too rich H025, fuel pressure, fuel system, mechanical fault, ECM
115 Fuel trim RH – mixture too lean H02S, fuel pressure, fuel system, mechanical fault, ECM
201 P1320 Ignition signal – circuit malfunction Wiring, ignition control module (ICM), ignition coil
203 Closed throttle position (CTP) switch – malfunction Wiring, CTP switch, mechanical fault, ECM
205 Idle control system – malfunction Wiring, lAC valve, mechanical fault, ECM
207 ABSffCS communication line – malfunction Wiring, ABSrrcs control module, ECM, mechanical fault
208 Engine overheating Cooling system, wiring, engine coolant blower motor
209 Fuel trim LH – mixture too rich H02S, fuel pressure, fuel system, mechanical fault, ECM
210 Fuel trim LH – mixture too lean H025, fuel pressure, fuel system, mechanical fault, ECM
213 P1440 Evaporative emission (EVAP) canister purge control system – small leak EVAP valve, hoses, mechanical fault
214 P1444 Evaporative emission (EVAP) canister purge control system – malfunction Wiring, EVAP valve, hoses, mechanical fault, ECM
215 P1446 Evaporative emission (EVAP) canister purge control valve – malfunction Wiring, EVAP valve, mechanical fault, ECM
301 Engine control module (ECM) – internal function failure ECM
302 Exhaust gas recirculation (EGR) system – flow excessively high or low Wiring, EGR solenoid valve, mechanical fault
303 Heated oxygen sensor (H02S) – LH front- circuit malfunction H02S, ECM
304 Knock sensor (KS) – circuit Wiring, KS, ECM
305 P1401 Exhaust gas recirculation (EGR) temperature sensor – circuit malfunction Wiring, EGR temperature sensor, ECM
306 Exhaust gas recirculation (EGR) system- excess flow detected EGR valve, mechanical fault
307 Closed loop control RH – inoperative Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
307 P1148 Closed loop control LH – inoperative Wiring, H025, fuel pressure, fuel system, mechanical fault, ECM
308 Closed loop control LH – inoperative Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
308 P1168 Closed loop control RH – inoperative Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
309 P1448 Evaporative emission (EVAP) canister purge control valve – malfunction Wiring, EVAP valve, ECM
311 P1491 Evaporative emission (EVAP) canister purge control system – malfunction Wiring, EVAP valve, ECM
312 P1493 Evaporative emission (EVAP) canister purge control valve – malfunction Wiring, EVAP valve, ECM
313 Heated oxygen sensor (H02S) – LH rear- voltage high Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
314 Heated oxygen sensor (H02S)- LH rear- voltage low Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
315 Heated oxygen sensor (H02S) – LH rear – no activity detected Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
401 Intake air temperature (IAT) sensor- circuit malfunction Wiring, IAT sensor, ECM
402 Fuel temperature sensor – circuit malfunction Wiring, temperature sensor, ECM
403 Throttle position (TP) sensor – circuit malfunction Wiring, TP sensor, ECM
404 ABSfTCS communication line – malfunction Wiring, ABSfTCS control module, ECM
407 P1335 Crankshaft position (CKP) sensor – circuit malfunction Wiring, CKP sensor, ECM
409 Heated oxygen sensor (H02S) – RH front – slow response Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
410 Heated oxygen sensor (H02S)- RH front- voltage high Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
411 Heated oxygen sensor (H02S)- RH front- voltage low Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
412 Heated oxygen sensor (H02S) – RH front – no activity detected Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
413 Heated oxygen sensor (H02S) – LH front – slow response Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
414 Heated oxygen sensor (H02S) – LH front- voltage high Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
415 Heated oxygen sensor (H02S) – LH front – voltage low Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
503 Heated oxygen sensor (H02S) – RH front- circuit malfunction Wiring, H02S, ECM
504 P0600 ECMfTCM – communication malfunction Wiring, ECM, TCM
505 No self diagnostic-failure indicated
509 Heated oxygen sensor (H02S) – LH front – no activity detected Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
510 Heated oxygen sensor (H02S)- rear- no activity detected/voltage high Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
511 Heated oxygen sensor (H02S)- rear- voltage low Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
512 Heated oxygen sensor (H02S) 2, bank 1 – circuit high Wiring open/short circuit, H02S, ECM
514 P1402 Exhaust gas recirculation (EGR)   temperature system – malfunction Wiring, EGR temperature sensor, mechanical fault, ECM
515 P0403 EGR volume control valve – malfunction Wiring, EGR volume control valve
603 Cylinder 6 – misfire Wiring, ignition system, fuel system, fuel pressure, mechanical fault, ECM
604 Cylinder 5 – misfire Wiring, ignition system, fuel system, fuel pressure, mechanical fault, ECM
605 Cylinder 4 – misfire Wiring, ignition system, fuel system, fuel pressure, mechanical fault, ECM
606 Cylinder 3 – misfire Wiring, ignition system, fuel system, fuel pressure, mechanical fault, ECM
607 Cylinder 2 – misfire Wiring, ignition system, fuel system, fuel pressure, mechanical fault, ECM
608 Cylinder 1 – misfire Wiring, ignition system, fuel system, fuel pressure, mechanical fault, ECM
701 Random misfire Wiring, ignition system, fuel system, EGR valve, fuel pressure, mechanical fault, ECM
702 Catalytic converter RH – efficiency below limit Catalytic converter, rear H02S
703 Catalytic converter LH – efficiency below limit Catalytic converter, rear H02S
704 Evaporative emission (EVAP) canister pressure sensor – malfunction Wiring, canister pressure sensor, mechanical fault, ECM
705 Evaporative emission (EVAP) canister purge control system – small leak Wiring, EVAP valve, mechanical fault, ECM
707 Heated oxygen sensor (H02S) – rear/RH   rear – slow response/circuit malfunction Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
708 Heated oxygen sensor (H02S) – LH rear – slow response/circuit malfunction Wiring, H02S, fuel pressure, fuel system, mechanical fault, ECM
715 Evaporative emission (EVAP) canister purge control system – large leak EVAP valve, hoses leaking, fuel filler cap missing, mechanical fault
801 P1490 Evaporative emission (EVAP) canister purge control system – malfunction Wiring, EVAP solenoid, hoses, mechanical fault, ECM
802 Crankshaft position (CKP) sensor – circuit malfunction Wiring, CKP sensor, ECM
803 Manifold absolute pressure (MAP) sensor – circuit malfunction Wiring, MAP sensor, ECM
804 P1605 AT diagnosis communication -signal failure Wiring, ECM
807 Evaporative emission (EVAP) canister purge control system – circuit malfunction Wiring, EVAP solenoid, ECM
807 P1492 Evaporative emission (EVAP) canister purge control valve – malfunction Wiring, EVAP solenoid, hoses, mechanical fault, ECM
901 Heated oxygen sensor (H02S) – RH front – heater circuit malfunction Wiring, H025, ECM
902 Heated oxygen sensor (H02S) – RH rear- heater circuit malfunction Wiring, H025, ECM
903 Evaporative emission (EVAP) canister purge control system – circuit malfunction Wiring, EVAP valve, mechanical fault, ECM
905 P1336 Crankshaft position (CKP) sensor – signal malfunction Wiring, CKP sensor, ECM
908 Insufficient coolant temperature for closed loop fuel control Wiring, ECT sensor, mechanical fault, ECM
1001 Heated oxygen sensor (H02S) – LH front- heater circuit malfunction Wiring, H025, ECM
1002 Heated oxygen sensor (H02S) – LH rear- heater circuit malfunction Wiring, H025, ECM
1003 Park/neutral position (PNP) switch – circuit malfunction Wiring, PNP switch, mechanical fault, ECM
1003 P1706 Park neutral position (PNP) switch – malfunction Wiring, PNP switch, mechanical fault, ECM
1004 P1130 Intake manifold air control solenoid – malfunction Wiring, control solenoid, intake system, hose leak/blockage, control vacuum check switch, ECM
1005 P1400 Exhaust gas recirculation (EGR) valve – voltage incorrect Wiring, EGR valve, mechanical fault, ECM
1008 P1445 Evaporative emission (EVAP) canister purge control valve – circuit malfunction Wiring, EVAP valve, ECM
1101 Park/neutral position (PNP) switch – circuit Wiring, PNP switch, mechanical fault, ECM
1102 AT- vehicle speed sensor (VSS) Wiring, VSS, mechanical fault, ECM
1103 AT – first gear selection – malfunction Wiring, mechanical fault
1104 AT – second gear selection – malfunction Wiring, mechanical fault
1105 AT – third gear selection – malfunction Wiring, mechanical fault
1106 AT- fourth gear selection – malfunction Wiring, mechanical fault
1107 AT- signal circuit malfunction Wiring, mechanical fault
1108 AT- shift solenoid A – voltage low Wiring, shift solenoid, mechanical fault
1201 AT- shift solenoid B – voltage low Wiring, shift solenoid, mechanical fault
1203 P1760 AT- overrun clutch solenoid – voltage low Wiring, solenoid, mechanical fault
1204 Torque converter clutch solenoid – voltage low Wiring, solenoid, mechanical fault
1205 AT- line pressure solenoid- voltage low Wiring, solenoid, mechanical fault
1206 P1705 AT – throttle position (TP) sensor- voltage high or low Wiring, TP sensor, mechanical fault, ECM
1207 Engine speed (RPM) – incorrect voltage signal ECM to AT control module Wiring, RPM sensor, mechanical fault, ECM
1208 Transmission fluid temperature sensor- excessively high or low voltage Wiring, temperature sensor, mechanical fault, ECM
1302 P1105 MAP/BARO switching valve – circuit malfunction Wiring, MAP/BARO switching valve
1305 P1220 Fuel pump (FP) control module – circuit malfunction Wiring, FP control module
1308 P1900 Engine coolant blower motor – circuit Wiring, blower motor, ECM