Lexus fault codes: probable meanings
Codes specific to Lexus (often P1xxx, B1xxx, C1xxx, U1xxx). The manufacturer does not publish these meanings: they come from an open database and remain probable. The same code can have another meaning depending on the model or the year.
Codes: 49, from smallest to largest.
| Code | Probable meaning |
|---|---|
| P1100 | BARO Sensor Circuit Malfunction |
| P1120 | Accelerator Pedal Position Sensor Circuit Malfunction |
| P1121 | Accelerator Pedal Position Sensor Range Performance Problem |
| P1125 | Throttle Control Motor Circuit Malfunction |
| P1126 | Magnetic Clutch Circuit Malfunction |
| P1127 | ECTS Actuator Power Source Circuit Malfunction |
| P1128 | Throttle Control Motor Lock Malfunction |
| P1129 | Electronic Throttle Control System |
| P1130 | Air/Fuel Ratio Sensor Circuit Range Performance Malfunction Bank 1 Sensor 1 |
| P1133 | Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 1 Sensor 1 |
| P1135 | Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank 1 Sensor 1 |
| P1150 | Air/Fuel Ratio Sensor Circuit Range Performance Malfunction Bank 2 Sensor 1 |
| P1153 | Air/Fuel Ratio Sensor Circuit Response Malfunction Bank 2 Sensor 1 |
| P1155 | Air/Fuel Ratio Sensor Heater Circuit Malfunction Bank 1 Sensor 1 |
| P1200 | Fuel Pump Relay ECU Circuit Malfunction |
| P1300 | Igniter Circuit Malfunction Bank 1 Or No 1 |
| P1305 | Igniter Circuit Malfunction Bank 2 Or No 2 |
| P1310 | Igniter Circuit Malfunction No 3 |
| P1315 | Igniter Circuit Malfunction No 4 |
| P1320 | Igniter Circuit Malfunction No 5 |
| P1325 | Igniter Circuit Malfunction No 6 |
| P1330 | Igniter Circuit Malfunction No 7 |
| P1335 | CKP Sensor Circuit Malfunction During Engine Running |
| P1340 | Igniter Circuit Malfunction No 8 |
| P1345 | VVT Sensor Circuit Malfunction Bank 1 |
| P1346 | VVT Sensor Range Performance Problem Bank 1 |
| P1349 | VVT System Malfunction Bank 1 |
| P1350 | VVT Sensor Circuit Malfunction Bank 2 |
| P1351 | VVT Sensor Range Performance Problem Bank 2 |
| P1354 | VVT System Malfunction Bank 2 |
| P1400 | Sub-TP Sensor Malfunction |
| P1401 | EGR Valve Position Sensor Circuit Malfunction |
| P1410 | EGR Valve Position Sensor Circuit Malfunction |
| P1411 | EGR Valve Position Sensor Circuit Range Performance Malfunction |
| P1500 | Starter Signal Circuit Malfunction |
| P1510 | Intake Air Volume Too Low With Supercharger On |
| P1520 | Stop Lamp Switch Malfunction |
| P1565 | Cruise Control Main Switch Circuit Malfunction |
| P1566 | Cruise Control Main Switch Circuit Malfunction |
| P1600 | ECM BATT Malfunction |
| P1605 | Knock Control CPU Malfunction |
| P1633 | ECM Malfunction ETCS Circuit |
| P1645 | Body ECU Malfunction |
| P1656 | OCV Circuit Malfunction Bank 1 |
| P1663 | OCV Circuit Malfunction Bank 2 |
| P1700 | Vehicle Speed Meter Circuit Fault |
| P1705 | Direct Clutch Speed Circuit Fault |
| P1765 | Linear Shift Solenoid Circuit Fault |
| P1780 | PNP Switch Malfunction |
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Official meanings: OBDex (public domain, CC0). Manufacturer codes: dtc-database (MIT license), probable meanings not verified by the manufacturers. The same meaning can vary depending on the model: always have a diagnosis confirmed by a professional.