Toyota fault codes
12,945 codes · 876 vehicle records · 1,973 ECU records · 43,462 live-data parameters
Codes 12,945
| Code | Description | Brands | System |
|---|---|---|---|
| P1C6C | Generator cutoff OFF stuck | 5 | Powertrain |
| P1C6D | HSDN IPD output error | 4 | Powertrain |
| P1C6E | Upstream power supply circuit error | 5 | Powertrain |
| P1C6F | Reductant heater relay control circuit performance | 6 | Powertrain |
| P1C70 | SCR error detected - engine disabled | 3 | Powertrain |
| P1C71 | Hill-start Assist Control (HAC) function actuation failure | 4 | Powertrain |
| P1C72 | Hybrid / EV Battery Energy Control Module Rolling Count Error from INV | 4 | Powertrain |
| P1C73 | Park Switch Circuit Stuck | 11 | Powertrain |
| P1C77 | Advance warning - ground poor contact | 6 | Powertrain |
| P1C7C | High voltage system (A/C area) insulation resistance error | 11 | Powertrain |
| P1C7D | High voltage system (HV/EV battery area) insulation resistance error | 4 | Powertrain |
| P1C7E | High voltage system (transaxle area) insulation resistance error | 5 | Powertrain |
| P1C7F | High voltage system (D/C area) insulation resistance error | 11 | Powertrain |
| P1C80 | Motor Inverter Phase U High Temperature | 11 | Powertrain |
| P1C81 | Engine unable to start - exhaust aftertreatment | 13 | Powertrain |
| P1C82 | High voltage power supply circuit load takeout | 13 | Powertrain |
| P1C83 | Motor Inverter Phase V Low Temperature | 11 | Powertrain |
| P1C84 | High voltage power supply circuit interruption during ReadyON | 13 | Powertrain |
| P1C85 | Motor Inverter Phase W Low Temperature | 11 | Powertrain |
| P1C86 | Generator machine system error | 12 | Powertrain |
| P1C87 | Transaxle (shaft) machine system error | 13 | Powertrain |
| P1C88 | Motor Inverter Phase W Temperature Not Plausible | 10 | Powertrain |
| P1C89 | Single Hall sensor - component internal fault | 3 | Powertrain |
| P1C8A | BMS Message Count Error | 2 | Powertrain |
| P1C8B | Battery voltage - circuit voltage below threshold | 3 | Powertrain |
| P1C8C | Hybrid/EV Battery System Voltage High Voltage | 12 | Powertrain |
| P1C8D | Power supply 1 circuit/open | 10 | Powertrain |
| P1C8E | Power supply 1 circuit low | 3 | Powertrain |
| P1C8F | Power supply 1 circuit high | 10 | Powertrain |
| P1C91 | Power supply 2 circuit low | 6 | Powertrain |
| P1C94 | EEP Erase Error | 4 | Powertrain |
| P1C96 | EEP Write Error | 4 | Powertrain |
| P1C99 | Gear shift position sensor 1 circuit | 3 | Powertrain |
| P1C9B | Gear shift position sensor 2 circuit high | 3 | Powertrain |
| P1C9E | DCDC: Discharge exceeded Timeout | 3 | Powertrain |
| P1C9F | Gear shift position sensor 3 circuit high | 4 | Powertrain |
| P1CA5 | Gear shift position sensor 4 circuit | 5 | Powertrain |
| P1CA6 | No description available | 3 | Powertrain |
| P1CA7 | Ignition solenoid control circuit high or open | 5 | Powertrain |
| P1CA8 | Ignition solenoid control circuit low | 4 | Powertrain |
| P1CAC | Flow control solenoid A control circuit performance | 5 | Powertrain |
| P1CAD | Gear shift actuator 1 disengage failure | 4 | Powertrain |
| P1CAE | Gear shift actuator 2 disengage failure | 4 | Powertrain |
| P1CAF | Gear shift actuator 3 disengage failure | 5 | Powertrain |
| P1CB0 | Gear shift actuator 4 disengage failure | 12 | Powertrain |
| P1CB1 | Gear shift actuator 1 engage failure | 11 | Powertrain |
| P1CB2 | Shutoff valve for vacuum reservoir | 5 | Powertrain |
| P1CB3 | Gear shift actuator 3 engage failure | 10 | Powertrain |
| P1CB4 | Gear shift actuator 4 engage failure | 11 | Powertrain |
| P1CB5 | Actual Torque not Plausible | 10 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.