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, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)RESTRAINTSRESTRAINTS CONTROL SYSTEMSPRE-COLLISION SYSTEM - DIAGNOSTIC CODES
2025 Toyota Highlander XLE, 4WD
Pre-Collision System - Diagnostic Codes
2025 Toyota Highlander XLE, 4WDSECTION Pre-Collision System - Diagnostic Codes
- Pre-Collision System
- Vehicle Control History [12/2019 - 09/2020]
- Vehicle Control History [09/2020 - 10/2022]
- Vehicle Control History [10/2022 - 11/2023]
- Vehicle Control History [11/2023 - ]
- DTC C1425-71: Stop Light Relay Actuator Stuck [12/2019 - ]
- DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message [12/2019 - 09/2020]
- DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0125-87: Lost Communication with Multi-axis Acceleration Sensor Module Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message [09/2020 - 11/2023]
- DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message; DTC U0101-87: Lost Communication with TCM Missing Message; DTC U0126-87: Lost Communication with Steering Angle Sensor Module Missing Message; DTC U0129-87: Lost Communication with Brake System Control Module Missing Message; DTC U0131-87: Lost Communication with Power Steering Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid/EV Powertrain Control Module Missing Message [11/2023 - ]
- DTC U0235-87: Lost Communication with Cruise Control Front Distance Range Sensor Single Sensor or Center Missing Message [12/2019 - 09/2020]
- DTC U0235-87: Lost Communication with Cruise Control Front Distance Range Sensor Single Sensor or Center Missing Message [09/2020 - 11/2023]
- DTC U0235-87: Lost Communication with Cruise Control Front Distance Range Sensor Single Sensor or Center Missing Message [11/2023 - ]
- DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message [12/2019 - 09/2020]
- DTC U023A-87: Lost Communication with Image Processing Module "A" Missing Message [09/2020 - 11/2023]
- DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed [12/2019 - 09/2020]
- DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed [09/2020 - 10/2022]
- DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed [10/2022 - 11/2023]
- DTC U0300-51: Internal Control Module Software Incompatibility Not Programmed [11/2023 - ]
- DTC U0300-57: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [12/2019 - 09/2020]
- DTC U0300-57: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [09/2020 - 10/2022]
- DTC U0300-57: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [10/2022 - 11/2023]
- DTC U0300-57: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component [11/2023 - ]
- DTC U0328-51: Software Incompatibility with Steering Angle Sensor Module Not Programmed; DTC U0328-57: Software Incompatibility with Steering Angle Sensor Module Invalid/Incompatible Software Component [09/2020 - 11/2023]
- DTC U0328-51: Software Incompatibility with Steering Angle Sensor Module Not Programmed; DTC U0328-57: Software Incompatibility with Steering Angle Sensor Module Invalid/Incompatible Software Component [11/2023 - ]
- DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [12/2019 - 09/2020]
- DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [09/2020 - 11/2023]
- DTC U0418-81: Invalid Data Received from Brake System Control Module Invalid Serial Data Received [11/2023 - ]
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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.