2000 Infiniti QX4FACTORY OEM SERVICE PROCEDURE

Diagnostic Trouble Code Identification

DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION CHART

Scan Tester DTC MIL DTC System/Circuit Affected
P0000 0505 No Malfunction/Normal Condition
P0100  0102 Mass Air Flow (MAF) Sensor
P0105  0803 Absolute Pressure Sensor
P0110  0401 Intake Air Temperature Sensor
P0115  0103 Engine Coolant Temperature (ECT) Sensor
P0120  0403 Throttle Position (TP) Sensor
P0125  0908 Engine Coolant Temperature (ECT) Sensor
P0130  0503 Right Front HO2S (Circuit)
P0131  0415 Right Front HO2S (Lean Shift)
P0132  0414 Right Front HO2S (Rich Shift)
P0133  0413 Right Front HO2S (Response Time)
P0134  0509 Right Front HO2S (High Voltage)
P0135  0901 Right Front HO2S Heater
P0137  0511 Right Rear HO2S (Minimum Voltage)
P0138  0510 Right Rear HO2S (Maximum Voltage)
P0139  0707 Right Rear HO2S (Response Time)
P0140  0512 Right Rear HO2S (High Voltage)
P0141  0902 Right Rear HO2S Heater
P0150  0303 Left Front HO2S (Circuit)
P0151  0411 Left Front HO2S (Lean Shift)
P0152  0410 Left Front HO2S (Rich Shift)
P0153  0409 Left Front HO2S (Response Time)
P0154  0412 Left Front HO2S (High Voltage)
P0155  1001 Left Front HO2S Heater
P0157  0314 Left Rear HO2S (Minimum Voltage)
P0158  0313 Left Rear HO2S (Maximum Voltage)
P0159  0708 Left Rear HO2S (Response Time)
P0160  0315 Left Rear HO2S (High Voltage)
P0161  1002 Left Rear HO2S Heater
P0171  0115 Fuel System Lean (Right Bank)
P0172  0114 Fuel System Rich (Right Bank)
P0174  0210 Fuel System Lean (Left Bank)
P0175  0209 Fuel System Rich (Left Bank)
P0180  0402 Fuel Tank Temperature (FTT) Sensor
P0300  0701 Multiple Cyl. Misfire Detected
P0301  0608 No. 1 Cyl. Misfire Detected
P0302  0607 No. 2 Cyl. Misfire Detected
P0303  0606 No. 3 Cyl. Misfire Detected
P0304  0605 No. 4 Cyl. Misfire Detected
P0305  0604 No. 5 Cyl. Misfire Detected
P0306  0603 No. 6 Cyl. Misfire Detected
P0325 (1) 0304 Knock Sensor
P0335  0802 Crankshaft Position Sensor
P0340  0101 Camshaft Position Sensor
P0400  0302 EGR Function
P0402  0306 EGR Backpressure Transducer Valve
P0420  0702 Three-Way Catalyst Malfunction (Right Bank)
P0430  0703 Three-Way Catalyst Malfunction (Left Bank)
P0440  0705 EVAP Small Leak Detected
P0443  1008 EVAP Canister Purge Volume Control Valve
P0446  0903 EVAP Canister Vent Control Valve
P0450  0704 EVAP Control System Pressure Sensor
P0500  0104 Vehicle Speed Sensor (VSS)
P0505  0205 Idle Air Control Valve-Auxiliary Air Control (IACV-AAC) Valve
P0510  0203 Closed Throttle Position Switch
P0600 (2)   A/T Communication Line
P0605  0301 ECM
P0705 1101 (3) PNP Switch/Circuit
P0710 1208 (3) A/T Fluid Temperature Sensor
P0720 1102 (3) Vehicle Speed Sensor
P0725 1207 (3) Engine Speed Signal
P0731 1103 (3) Incorrect Shift To 1st Gear
P0732 1104 (3) Incorrect Shift To 2nd Gear
P0733 1105 (3) Incorrect Shift To 3rd Gear
P0734 1106 (3) Incorrect Shift To 4th Gear
P0740 1204 (3) TCC Solenoid Valve
P0744 1107 (3) Torque Converter Clutch (TCC)
P0745 1205 (3) Line Pressure Solenoid Valve
P0750 1108 (3) Shift Solenoid Valve A
P0755 1201 (3) Shift Solenoid Valve B
P1105  1302 MAP/BARO Switch Solenoid
P1148  0307 Closed Loop Fault Detected (Right Bank)
P1168  0308 Closed Loop Fault Detected (Left Bank)
P1320  0201 Ignition Signal Circuit
P1336  0905 Crankshaft Position Sensor
P1400  1005 EGRC Solenoid Valve
P1401  0305 EGR Temperature Sensor
P1402  0514 EGR System Fault Detected
P1440  0213 EVAP System Leak Detected
P1444  0214 EVAP Canister Purge Volume Control Valve
P1446  0215 EVAP Canister Vent Control Valve
P1447  0111 EVAP Canister Purge Flow Monitor
P1448  0309 EVAP Canister Vent Control Valve
P1490  0801 Vacuum Cut Valve By-Pass Valve
P1491  0311 Vacuum Cut Valve By-Pass Valve
P1605  0804 A/T Diagnostic Communication Line
P1705 1206 (3) A/T Temperature Sensor
P1706  1003 Park/Neutral Position Switch
P1760 1203 (3) Overrun Clutch Solenoid Valve
(4) 0208 Cooling Fan/System Fault
(1) Freeze frame data will not be stored in the ECM for the knock sensor. The MIL will not light for a knock sensor malfunction.
(2) In case of the diagnostic item, the freeze frame data will not be stored in the ECM. This diagnosis does not have 2 trip detection logic, and will not light up the MIL.
(3) See appropriate ELECTRONIC CONTROLS article in AUTOMATIC TRANSMISSIONS for test procedures.
(4) Scan Tool DTC is not available.
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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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