Section 1 (Engine Controls - Self-Diagnostics)
WARNING: This page is about a different car, the 2000 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
- Diagnostic Trouble Code Identification
- Diagnostic Tests
- Notes
- DTC P0100: Mass Airflow (MAF) Sensor Circuit Fault
- DTC P0101: Mass Airflow (MAF) Sensor Circuit Range/Performance Fault
- DTC P0110: Intake Air Temperature (IAT) Sensor Circuit
- DTC P0115: Engine Coolant Temperature (ECT) Sensor Circuit
- DTC P0116: Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Fault
- DTC P0120: Throttle Position (TP) Sensor Circuit Malfunction
- DTC P0121: Throttle Position (TP) Sensor Circuit Range/Performance Fault
- DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
- DTC P0128: Thermostat Fault
- DTC P0136: Heated Oxygen Sensor Circuit
- DTC P0141: Heated Oxygen Sensor Heater Circuit
- DTC P0171 Or P0172: System Too Lean/Rich
- DTC P0300: Random Cylinder Misfire Detected
- DTC P0301-P0306: Cylinders No. 1-6 Misfire Detected
- DTC P0325 Or P0330: Knock Sensor
- DTC P0335 Or P1335: Crankshaft Position (CKP) Sensor Circuit
- DTC P0340: Variable Valve Timing (VVT) Sensor Circuit
- DTC P0420: Catalyst System Efficiency Below Threshold
- DTC P0440: EVAP System Malfunction Or DTC P0442: EVAP System Leak Detected (Small Leak)
- DTC P0441: Incorrect EVAP Purge Flow Or DTC P0446: EVAP Vent Control Fault
- DTC P0450: EVAP Pressure Sensor Malfunction Or DTC P0451: EVAP Pressure Sensor Range/Performance Fault
- DTC P0500: Vehicle Speed Sensor (VSS) Malfunction
- DTC P0505: Idle Control System Malfunction
- DTC P1130 Or P1150: Air/Fuel Sensor Circuit Range/Performance Fault
- DTC P1133 Or P1153: Air/Fuel Sensor Circuit Response Malfunction
- DTC P1135 Or P1155: Air/Fuel Sensor Heater Circuit Malfunction
- DTC P1300, P1305, P1310, P1315, P1320 Or P1325: IGNITOR Circuit Malfunction
- DTC P1345 Or P1350: Variable Valve Timing (VVT) Circuit Malfunction
- DTC P1346 Or P1351: Variable Valve Timing (VVT) Circuit Range/Performance Fault
- DTC P1349 Or P1354: Variable Valve Timing (VVT) System Malfunction
- DTC P1520: Stoplight Switch Signal Malfunction
- DTC P1600: ECM Batt Malfunction
- DTC P1656 Or P1663: Oil Control Valve (OCV) Malfunction
- DTC P1780: Park/Neutral Position Switch Malfunction