Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSTOYOTA2025HIGHLANDER XLE, FWDREPAIR AND DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDTC INDEX (3 OF 6)HYBRID / BATTERY CONTROL DTCSREAR MOTOR GENERATOR CONTROL SYSTEM (2020-23)
2025 Toyota Highlander XLE, FWD
Rear Motor Generator Control System (2020-23)
2025 Toyota Highlander XLE, FWDSECTION Rear Motor Generator Control System (2020-23)
REAR MOTOR GENERATOR CONTROL SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC Code | Description |
|---|---|
| P0A45-16 | Drive Motor "B" Position Sensor Circuit Voltage Below Threshold |
| P0A45-1F | Drive Motor "B" Position Sensor Circuit Intermittent |
| P0A45-21 | Drive Motor "B" Position Sensor Signal Amplitude < Minimum |
| P0A45-22 | Drive Motor "B" Position Sensor Signal Amplitude > Maximum |
| P0A69-12 | Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Battery |
| P0A69-14 | Drive Motor "B" Phase V Current(High Resolution) Circuit Short to Ground or Open |
| P0A69-1C | Drive Motor "B" Phase V Current(High Resolution) Circuit Voltage Out of Range |
| P0A69-1F | Drive Motor "B" Phase V Current(High Resolution) Circuit Intermittent |
| P0A6C-12 | Drive Motor "B" Phase W Current(High Resolution) Circuit Short to Battery |
| P0A6C-14 | Drive Motor "B" Phase W Current(High Resolution) Circuit Short to Ground or Open |
| P0A6C-1C | Drive Motor "B" Phase W Current(High Resolution) Circuit Voltage Out of Range |
| P0A6C-1F | Drive Motor "B" Phase W Current(High Resolution) Circuit Intermittent |
| P0A79-72 | Drive Motor "B" Inverter Actuator Stuck Open |
| P0A79-73 | Drive Motor "B" Inverter Actuator Stuck Closed |
| P0A79-9E | Drive Motor "B" Inverter Stuck On |
| P0A91-00 | Drive Motor "B" Performance |
| P0AF2-11 | Drive Motor Inverter Temperature Sensor "B" Circuit Short to Ground |
| P0AF2-15 | Drive Motor Inverter Temperature Sensor "B" Circuit Short to Battery or Open |
| P0AF2-1C | Drive Motor Inverter Temperature Sensor "B" Circuit Voltage Out of Range |
| P0BF1-12 | Drive Motor "B" Phase U Current Sensor Circuit Short to Battery |
| P0BF1-14 | Drive Motor "B" Phase U Current Sensor Circuit Short to Ground or Open |
| P0BF1-1F | Drive Motor "B" Phase U Current Sensor Circuit Intermittent |
| P0BF1-28 | Drive Motor "B" Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0BF5-12 | Drive Motor "B" Phase V Current Sensor Circuit Short to Battery |
| P0BF5-14 | Drive Motor "B" Phase V Current Sensor Circuit Short to Ground or Open |
| P0BF5-1F | Drive Motor "B" Phase V Current Sensor Circuit Intermittent |
| P0BF5-28 | Drive Motor "B" Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0BF9-12 | Drive Motor "B" Phase W Current Sensor Circuit Short to Battery |
| P0BF9-14 | Drive Motor "B" Phase W Current Sensor Circuit Short to Ground or Open |
| P0BF9-1F | Drive Motor "B" Phase W Current Sensor Circuit Intermittent |
| P0BF9-28 | Drive Motor "B" Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure |
| P0BFE-62 | Drive Motor "B" Phase U-V-W Current Sensor Signal Compare Failure |
| P0C02-1D | Drive Motor "B" System Circuit Current Out of Range |
| P0C1A-00 | Drive Motor "B" Execution Torque Performance |
| P0C55-13 | Drive Motor "B" Position Sensor Circuit "A" Circuit Open |
| P0C55-16 | Drive Motor "B" Position Sensor Circuit "A" Circuit Voltage Below Threshold |
| P0C55-17 | Drive Motor "B" Position Sensor Circuit "A" Circuit Voltage Above Threshold |
| P0C55-1F | Drive Motor "B" Position Sensor Circuit "A" Circuit Intermittent |
| P0C5F-13 | Drive Motor "B" Position Sensor Circuit "B" Circuit Open |
| P0C5F-16 | Drive Motor "B" Position Sensor Circuit "B" Circuit Voltage Below Threshold |
| P0C5F-17 | Drive Motor "B" Position Sensor Circuit "B" Circuit Voltage Above Threshold |
| P0C5F-1F | Drive Motor "B" Position Sensor Circuit "B" Circuit Intermittent |
| P1BF9-46 | Internal Control Module (EEPROM Estimated Temperature Information) Calibration / Parameter Memory Failure |
| P1BFA-46 | Internal Control Module (EEPROM Resolver Learning Value) Calibration / Parameter Memory Failure |
| P1C2C-1C | Drive Motor "B" Control Module AD Converter Circuit Voltage Out of Range |
| P1C2C-49 | Drive Motor "B" Control Module AD Converter Circuit Internal Electronic Failure |
| P1C5E-19 | Drive Motor "B" Inverter Circuit Current Above Threshold |
| P1C63-1F | Drive Motor "B" Control Module Offset Power Circuit Intermittent |
| P1C66-1F | Drive Motor "B" Control Module Circuit Intermittent |
| P1C68-1F | Drive Motor "B" Phase U-V-W Current Sensor Circuit Intermittent |
| P1CAE-49 | Drive Motor "B" Position Sensor Internal Electronic Failure |
| P1CB1-38 | Drive Motor "B" Position Sensor REF Signal Frequency Incorrect |
| P262C-1C | Drive Motor "B" Control Module Offset Power Circuit Voltage Out of Range |
| P310B-1F | Communication Error from Drive Motor "A" to Drive Motor "B" Circuit Intermittent |
| P310B-83 | Communication Error from Drive Motor "A" to Drive Motor "B" Value of Signal Protection Calculation Incorrect |
| P310B-86 | Communication Error from Drive Motor "A" to Drive Motor "B" Signal (Some Circuit Quantity, Reported via Serial Data) Invalid |
| P310B-87 | Communication Error from Drive Motor "A" to Drive Motor "B" Missing Message |
| P32CF-1F | Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Circuit Intermittent |
| P32CF-83 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Value of Signal Protection Calculation Incorrect |
| P32CF-86 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Signal (Some Circuit Quantity, Reported via Serial Data) Invalid |
| P32CF-87 | Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Missing Message |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.