Toyota fault codes: probable meanings
Codes specific to Toyota (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: 45, from smallest to largest.
| Code | Probable meaning |
|---|---|
| P1100 | BARO Sensor Circuit |
| P1120 | Accelerator Pedal Position Sensor Circuit |
| P1121 | Accelerator Pedal Position Sensor Range Performance Problem |
| P1125 | Throttle Control Motor Circuit |
| P1126 | Magnetic Clutch Circuit |
| P1127 | ETCS Actuator Power Source Circuit |
| P1128 | Throttle Control Motor Lock |
| P1129 | Electric Throttle Control System |
| P1130 | Air/Fuel Sensor Circuit Range Performance Bank 1 Sensor 1 |
| P1133 | Air/Fuel Sensor Circuit Response Bank 1 Sensor 1 |
| P1135 | Air/Fuel Sensor Heater Circuit Response Bank 1 Sensor 1 |
| P1150 | Air/Fuel Sensor Circuit Range Performance Bank 1 Sensor 2 |
| P1153 | Air/Fuel Sensor Circuit Response Bank 1 Sensor 2 |
| P1155 | Air/Fuel Sensor Heater Circuit Bank 1 Sensor 2 |
| P1200 | Fuel Pump Relay Circuit |
| P1300 | Igniter Circuit Malfunction No 1 |
| P1305 | Igniter Circuit Malfunction No 2 |
| P1335 | No Crankshaft Position Sensor Signal Engine Running |
| P1349 | VVT System |
| P1400 | Sub-Throttle Position Sensor |
| P1401 | Sub-Throttle Position Sensor Range Performance Problem |
| P1405 | Turbo Pressure Sensor Circuit |
| P1406 | Turbo Pressure Sensor Range Performance Problem |
| P1410 | EGR Valve Position Sensor Circuit Malfunction |
| P1411 | EGR Valve Position Sensor Circuit Range Performance |
| P1500 | Starter Signal Circuit |
| P1510 | Boost Pressure Control Circuit |
| P1511 | Boost Pressure Low |
| P1512 | Boost Pressure High |
| P1520 | Stop Lamp Switch Signal Malfunction |
| P1565 | Cruise Control Main Switch Circuit |
| P1600 | ECM BATT Malfunction |
| P1605 | Knock Control CPU |
| P1630 | Traction Control System |
| P1633 | ECM |
| P1652 | Idle Air Control Valve Control Circuit |
| P1656 | OCV Circuit |
| P1658 | Wastegate Valve Control Circuit |
| P1661 | EGR Circuit |
| P1662 | EGR Bypass Valve Control Circuit |
| P1700 | Vehicle Speed Sensor 2 Circuit Fault |
| P1705 | Direct Clutch Speed Circuit Fault |
| P1765 | Linear Shift Solenoid Circuit Fault |
| P1780 | Park Neutral Position Switch Malfunction Only For A/T |
| P1895 | TCM To ECM Torque Reduction Circuit 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.