DTC Inspection Priority: Notes
WARNING: This page is about a different car, the 2003 Infiniti FX35. However, it is still accessible from the selected car via links, so may be relevant.
If multiple DTCs are displayed at the same time, perform inspections one by one based on the following priority table. See DTC INSPECTION PRIORITY table. If DTC U1000 and/or U1001 are displayed with other DTCs, first perform diagnosis for U1000 or U1001. See DTC U1000: CAN COMMUNICATION LINE & DTC U1001: CAN COMMUNICATION LINE .
DTC INSPECTION PRIORITY
| Priority | DTC |
|---|---|
| 1 | U1000/U1001, P0101/P0102/P0103 MAF Sensor, P0112/P0113/P0127 IAT Sensor, P0117/P0118/P0125 ECT Sensor, P0128 Thermostat Function, P0122/P0123/P0222/P0223/P0225/P0226/P0229/P2135 TP Sensor, P2122/P2123/P2127/P2128/P2138 Accelerator Pedal Position Sensor, P0181/P0182/P0183 Fuel Tank Temperature Sensor, P0327/P0328 Knock Sensor, P0335 Crankshaft Position Sensor, P0340/P0345 Camshaft Position Sensor, P0460/P0461/P0462/P0463 Fuel Level Sensor, P0500 Vehicle Speed Sensor, P0605 ECM, P0705 Park/Neutral Position Switch, P1610-P1615 NATS, P1706 Park/Neutral Position Switch |
| 2 | P0031/P0032/P0051/P0052 Heated Oxygen Sensor 1 Heater, P0037/P0038/P0057/P0058 Heated Oxygen Sensor 2 Heater, P0132/P0133/P0134/P0152/P0153/P0154/P1143/P1144/P1163/P1164 Heated Oxygen Sensor 1, P0138/P0139/P0158/P0159/P1146/P1147/P1166/P1167 Heated Oxygen Sensor 2, P0441 EVAP Control System Purge Flow Monitoring, P0444/P0445/P1444 EVAP Canister Purge Volume Control Solenoid Valve, P0447/P1446 EVAP Canister Vent Control Valve, P0452/P0453 EVAP Control System Pressure Sensor, P0550 Power Steering Pressure Sensor, P0710/P0720/P0725/P0740/P0744/P0745/P1705/P1716/P1730/P1752/P1754/P1757/P1759/P1762/P1764/P1767/P1769/P1772/P1774 A/T Related Sensors, Solenoid Valves & Switches, P1065 ECM Power Supply, P1111/P1136 Intake Valve Timing Control Solenoid Valve, P1122 Electric Throttle Control Function, P1124/P1126/P1128 Electric Throttle Control Actuator, P1217 Engine Over Temperature (OVERHEAT), P1805 Brake Switch |
| 3 | P0011/P0021 Intake Valve Timing Control, P0171/P0172/P0174/P0175 Fuel Injection System Function, P0300-P0306 Misfire, P0420/P0430 3-Way Catalyst Function, P0442/P0455/P0456 EVAP Control System, P0506/P0507 Idle Speed Control System, P1121 Electric Throttle Control Actuator, P1148/P1168 Closed Loop Control, P1211 TCS Control Unit, P1212 TCS Communication Line, P1564 ICC Steering Switch (ASCD Steering Switch), P1568 ICC Command Valve, P1572 ICC Brake Switch/ASCD Brake Switch, P1574 ICC Vehicle Speed Sensor/ASCD Vehicle Speed Sensor |