Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Infiniti QX4FACTORY OEM SERVICE PROCEDURE
DTC Identification
DTC IDENTIFICATION
| OBD-II DTC | MIL Code | Items Affected | ||||||
|---|---|---|---|---|---|---|---|---|
| P0100 | 0102 | Mass Air Flow Sensor Circuit | ||||||
| P0105 | 0803 | Absolute Pressure Sensor | ||||||
| P0110 | 0401 | Intake Air Temperature Sensor Circuit | ||||||
| P0115 | 0103 | Engine Coolant Temp Sensor Circuit | ||||||
| P0120 | 0403 | Throttle Position Sensor Circuit | ||||||
| P0125 | 0908 | Engine Coolant Temp Sensor | ||||||
| P0130 | 0307 | Closed Loop Control - Right/Front HO2S | ||||||
| P0135 | 0901 | Right/Front HO2S - Heater Fault | ||||||
| P0136 | 0707 | Closed Loop Control - Right/Rear HO2S | ||||||
| P0141 | 0902 | Right/Rear HO2S - Heater Fault | ||||||
| P0150 | 0303 | Closed Loop Control - Left/Front HO2S | ||||||
| P0155 | 1001 | Left/Front HO2S - Heater Fault | ||||||
| P0156 | 0708 | Closed Loop Control - Left/Rear HO2S | ||||||
| P0161 | 1002 | Left/Rear HO2S - Heater Fault | ||||||
| P0171 | 0115 | Fuel System Lean - Right Bank On V6 | ||||||
| P0172 | 0114 | Fuel System Rich - Right Bank On V6 | ||||||
| P0174 | 0210 | Fuel System Lean - Left Bank | ||||||
| P0175 | 0209 | Fuel System Rich - Left Bank | ||||||
| P0180 | 0402 | Fuel Temperature Sensor Circuit | ||||||
| P0300 | 0701 | Multiple Cylinder Misfire | ||||||
| P0301 | 0608 | No. 1 Cyl. Misfire | ||||||
| P0302 | 0607 | No. 2 Cyl. Misfire | ||||||
| P0303 | 0606 | No. 3 Cyl. Misfire | ||||||
| P0304 | 0605 | No. 4 Cyl. Misfire | ||||||
| P0305 | 0604 | No. 5 Cyl. Misfire | ||||||
| P0306 | 0603 | No. 6 Cyl. Misfire | ||||||
| P0325 (1) | 0304 | Knock Sensor Circuit | ||||||
| P0335 | 0802 | Crankshaft Position Sensor (CKPS) | ||||||
| P0340 | 0101 | Camshaft Position Sensor (CMPS) | ||||||
| P0400 | 0302 | EGR System Function | ||||||
| P0402 | 0306 | EGRC-BPT Valve Function | ||||||
| P0420 | 0702 | Catalyst Function - Right Bank On V6 | ||||||
| P0430 | 0703 | Catalyst Function - Left Bank | ||||||
| P0440 | 0705 | EVAP Emission System - Small Leak | ||||||
| P0443 | 0807 | Purge Control Solenoid & Valve | ||||||
| P0446 | 0903 | Vent Control Valve | ||||||
| P0450 | 0704 | Evaporative Emission (EVAP) Control System Pressure Sensor | ||||||
| P0500 | 0104 | Vehicle Speed Sensor | ||||||
| P0505 | 0205 | Idle Air Control (IAC) Valve | ||||||
| P0510 | 0203 | Closed Throttle Position Switch | ||||||
| P0600 (2) | N/A | Auto Trans Communication Line | ||||||
| P0605 | 0301 | Engine Control Module | ||||||
| P0705 | 1003 | (3) Park/Neutral Position Switch | ||||||
| P0710 | 1208 | (3) Transmission Fluid Temp Sensor | ||||||
| P0720 | 1102 | (3) Vehicle Speed Sensor | ||||||
| P0725 | 1207 | (3) Engine Speed Sensor | ||||||
| P0731 | 1103 | (3) Auto Trans 1st Gear Signal | ||||||
| P0732 | 1104 | (3) Auto Trans 2nd Gear Signal | ||||||
| P0733 | 1105 | (3) Auto Trans 3rd Gear Signal | ||||||
| P0734 | 1106 | (3) TCC & 4th Gear Signal | ||||||
| P0740 | 1204 | (3) TCC Solenoid Valve | ||||||
| P0745 | 1205 | (3) Line Pressure Solenoid | ||||||
| P0750 | 1108 | (3) Shift Solenoid Valve "A" | ||||||
| P0755 | 1201 | (3) Shift Solenoid Valve "B" | ||||||
| P1105 | 1302 | MAP/BARO Solenoid | ||||||
| P1320 | 0201 | Primary Ignition Signal | ||||||
| P1336 | 0905 | Crankshaft Position Sensor | ||||||
| P1400 | 1005 | EGR Control Solenoid Valve | ||||||
| P1401 | 0305 | EGR Temperature Sensor | ||||||
| P1441 | 0801 | Vacuum Control/Bypass Valve | ||||||
| P1445 | 1008 | EVAP Purge Volume Control Valve | ||||||
| P1447 | 0111 | EVAP Purge Control Monitor | ||||||
| P1605 | 0804 | Auto Trans Communication Line | ||||||
| P1705 | 1206 | (3) Throttle Position Sensor A/T | ||||||
| P1760 | 1203 | (3) Overrunning Clutch Solenoid Valve | ||||||
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Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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