Engine Controls - Self-Diagnostics
- Diagnostic Trouble Code Definitions
- Circuit Tests
- Diagnostic Tests
- DTC P0100: Volume Airflow (VAF) Sensor Circuit Malfunction
- DTC P0105: Barometric Pressure (BARO) Sensor Circuit Malfunction
- DTC P0110: Intake Air Temperature (IAT) Sensor Circuit Malfunction
- DTC P0115: Engine Coolant Temperature (ECT) Sensor Malfunction
- DTC P0120: Throttle Position (TP) Sensor Circuit Malfunction
- DTC P0125: Excessive Time To Enter Closed Loop Fuel Control
- DTC P0130 & P0150: Front Heated Oxygen Sensor (Ho2S) Circuit Malfunction
- DTC P0135 & P0155: Front Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction
- DTC P0136 & P0156: Rear Heated Oxygen Sensor (Ho2S) Circuit Malfunction
- DTC P0141 & P0161: Rear Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction
- DTC P0170 & P0173: Fuel Trim Malfunction
- DTC P0201-P0206: Fuel Injector Cylinder No. 1-6 Circuit Malfunction
- DTC P0300: Random Misfire Detected
- DTC P0301-P0306: Cylinder No. 1-6 Misfire Detected
- DTC P0325: Knock Sensor Circuit Malfunction (3000GT DOHC)
- DTC P0335: Crankshaft Position (CKP) Sensor Circuit Malfunction
- DTC P0340: Camshaft Position (CMP) Sensor Circuit Malfunction
- DTC P0400: Exhaust Gas RECIRCULATION (EGR) Flow System Malfunction
- DTC P0403: Exhaust Gas RECIRCULATION (EGR) Solenoid Malfunction
- DTC P0420: Catalyst Efficiency Below Threshold (Montero Federal)
- DTC P0421 & P0431: Catalyst Efficiency Below Threshold - CALIFORNIA
- DTC P0442: Evaporative (EVAP) Emission Control System Leak Detected
- DTC P0443: Evaporative (EVAP) Emission Control System Purge Control Valve Circuit Malfunction
- DTC P0446: Evaporative (EVAP) Emission Control System Vent Control Malfunction
- DTC P0450: Evaporative (EVAP) Emission Control System Pressure Sensor Malfunction
- DTC P0455: Evaporative Emission (EVAP) Control System Large Leak Detected
- DTC P0500: Vehicle Speed Sensor (VSS) Circuit Malfunction
- DTC P0505: Idle Control System Malfunction
- DTC P0510: Closed Throttle Position (TP) Switch Malfunction
- DTC P0551: Power Steering Pressure (PSP) Sensor Circuit Performance
- DTC P0705: Transmission Range Sensor Circuit Malfunction
- DTC P1103: Turbocharger WASTEGATE Actuator Malfunction, Or P1104: Turbocharger WASTEGATE Solenoid Malfunction (3000GT Turbo)
- DTC P1105: Fuel Pressure Solenoid Malfunction (3000GT Turbo)
- DTC P1400: Manifold Differential Pressure (MDP) Sensor Circuit Malfunction
- DTC P1600: Serial Communication Link Malfunction
- DTC P1715: Pulse Generator Malfunction
- DTC P1750: Solenoid Malfunction
- DTC P1791: Engine Coolant Temperature Level Input To TCM
- Summary