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HOMESERVICE MANUALSTOYOTA2025HIGHLANDER LIMITED, FWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 78 (REAR MOTOR GENERATOR CONTROL SYSTEM - DIAGNOSTIC CODES)
2025 Toyota Highlander Limited, FWD
Section 78 (Rear Motor Generator Control System - Diagnostic Codes)
2025 Toyota Highlander Limited, FWDSECTION Section 78 (Rear Motor Generator Control System - Diagnostic Codes)
WARNING: This page is about a different car, the 2023 Toyota Highlander, 2022 Toyota Highlander, 2021 Toyota Highlander, and 2020 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- Rear Motor Generator Control System
- DTC P0A45-16: Drive Motor "B" Position Sensor Circuit Voltage Below Threshold; DTC P0A45-1F: Drive Motor "B" Position Sensor Circuit Intermittent [12/2019 - 11/2023]
- DTC P0A45-21: Drive Motor "B" Position Sensor Signal Amplitude < Minimum; DTC P0A45-22: Drive Motor "B" Position Sensor Signal Amplitude > Maximum [12/2019 - 11/2023]
- DTC P0A69-12: Drive Motor "B" Phase V Current (High Resolution) Circuit Short to Battery; DTC P0A69-14: Drive Motor "B" Phase V Current (High Resolution) Circuit Short to Ground or Open; DTC P0A69-1C: Drive Motor "B" Phase V Current (High Resolution) Circuit Voltage Out of Range; DTC P0A69-1F: Drive Motor "B" Phase V Current (High Resolution) Circuit Intermittent; DTC P0A6C-12: Drive Motor "B" Phase W Current (High Resolution) Circuit Short to Battery; DTC P0A6C-14: Drive Motor "B" Phase W Current (High Resolution) Circuit Short to Ground or Open; DTC P0A6C-1C: Drive Motor "B" Phase W Current (High Resolution) Circuit Voltage Out of Range; DTC P0A6C-1F: Drive Motor "B" Phase W Current (High Resolution) Circuit Intermittent [12/2019 - 11/2023]
- DTC P0A79-72: Drive Motor "B" Inverter Actuator Stuck Open [12/2019 - 11/2023]
- DTC P0A79-73: Drive Motor "B" Inverter Actuator Stuck Closed [12/2019 - 11/2023]
- DTC P0A79-9E: Drive Motor "B" Inverter Stuck On; DTC P1C5E-19: Drive Motor "B" Inverter Circuit Current Above Threshold [12/2019 - 11/2023]
- DTC P0A91-00: Drive Motor "B" Performance [12/2019 - 11/2023]
- DTC P0AF2-11: Drive Motor Inverter Temperature Sensor "B" Circuit Short to Ground; DTC P0AF2-15: Drive Motor Inverter Temperature Sensor "B" Circuit Short to Battery or Open [12/2019 - 11/2023]
- DTC P0AF2-1C: Drive Motor Inverter Temperature Sensor "B" Circuit Voltage Out of Range [12/2019 - 11/2023]
- DTC P0BF1-12: Drive Motor "B" Phase U Current Sensor Circuit Short to Battery; DTC P0BF1-14: Drive Motor "B" Phase U Current Sensor Circuit Short to Ground or Open; DTC P0BF1-1F: Drive Motor "B" Phase U Current Sensor Circuit Intermittent; DTC P0BF5-12: Drive Motor "B" Phase V Current Sensor Circuit Short to Battery; DTC P0BF5-14: Drive Motor "B" Phase V Current Sensor Circuit Short to Ground or Open; DTC P0BF5-1F: Drive Motor "B" Phase V Current Sensor Circuit Intermittent; DTC P0BF9-12: Drive Motor "B" Phase W Current Sensor Circuit Short to Battery; DTC P0BF9-14: Drive Motor "B" Phase W Current Sensor Circuit Short to Ground or Open; DTC P0BF9-1F: Drive Motor "B" Phase W Current Sensor Circuit Intermittent [12/2019 - 11/2023]
- DTC P0BF1-28: Drive Motor "B" Phase U Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure; DTC P0BF5-28: Drive Motor "B" Phase V Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure; DTC P0BF9-28: Drive Motor "B" Phase W Current Sensor Signal Bias Level Out of Range / Zero Adjustment Failure [12/2019 - 11/2023]
- DTC P0BFE-62: Drive Motor "B" Phase U-V-W Current Sensor Signal Compare Failure; DTC P1C68-1F: Drive Motor "B" Phase U-V-W Current Sensor Circuit Intermittent [12/2019 - 11/2023]
- DTC P0C02-1D: Drive Motor "B" System Circuit Current Out of Range [12/2019 - 11/2023]
- DTC P0C1A-00: Drive Motor "B" Execution Torque Performance [12/2019 - 11/2023]
- DTC P0C55-13: Drive Motor "B" Position Sensor Circuit "A" Circuit Open; DTC P0C55-1F: Drive Motor "B" Position Sensor Circuit "A" Circuit Intermittent; DTC P0C5F-13: Drive Motor "B" Position Sensor Circuit "B" Circuit Open; DTC P0C5F-1F: Drive Motor "B" Position Sensor Circuit "B" Circuit Intermittent [12/2019 - 11/2023]
- DTC P0C55-16: Drive Motor "B" Position Sensor Circuit "A" Circuit Voltage Below Threshold; DTC P0C55-17: Drive Motor "B" Position Sensor Circuit "A" Circuit Voltage Above Threshold; DTC P0C5F-16: Drive Motor "B" Position Sensor Circuit "B" Circuit Voltage Below Threshold; DTC P0C5F-17: Drive Motor "B" Position Sensor Circuit "B" Circuit Voltage Above Threshold [12/2019 - 11/2023]
- DTC P1BF9-46: Internal Control Module (EEPROM Estimated Temperature Information) Calibration / Parameter Memory Failure [12/2019 - 11/2023]
- DTC P1BFA-46: Internal Control Module (EEPROM Resolver Learning Value) Calibration / Parameter Memory Failure [12/2019 - 11/2023]
- DTC P1C2C-1C: Drive Motor "B" Control Module AD Converter Circuit Voltage Out of Range; DTC P1C2C-49: Drive Motor "B" Control Module AD Converter Circuit Internal Electronic Failure; DTC P1C63-1F: Drive Motor "B" Control Module Offset Power Circuit Intermittent; DTC P262C-1C: Drive Motor "B" Control Module Offset Power Circuit Voltage Out of Range; DTC P310B-1F: Communication Error from Drive Motor "A" to Drive Motor "B" Circuit Intermittent; DTC P310B-83: Communication Error from Drive Motor "A" to Drive Motor "B" Value of Signal Protection Calculation Incorrect; DTC P310B-86: Communication Error from Drive Motor "A" to Drive Motor "B" Signal (Some Circuit Quantity, Reported via Serial Data) Invalid; DTC P310B-87: Communication Error from Drive Motor "A" to Drive Motor "B" Missing Message; DTC P32CF-1F: Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Circuit Intermittent; DTC P32CF-83: Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Value of Signal Protection Calculation Incorrect; DTC P32CF-86: Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Signal (Some Circuit Quantity, Reported via Serial Data) Invalid; DTC P32CF-87: Lost Communication between Drive Motor "A" and "B" (Drive Motor "B") Missing Message [12/2019 - 11/2023]
- DTC P1C66-1F: Drive Motor "B" Control Module Circuit Intermittent; DTC P1CAE-49: Drive Motor "B" Position Sensor Internal Electronic Failure; DTC P1CB1-38: Drive Motor "B" Position Sensor REF Signal Frequency Incorrect [12/2019 - 11/2023]
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.