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)ACCESSORIES & EQUIPMENTHEADLIGHTSLIGHTING SYSTEM (W/ AFS) - DIAGNOSTIC CODES (2 OF 2), SYMPTOM TESTS & CIRCUIT TESTSLIGHTING SYSTEM (W/ AFS)DTC U0129-87: LOST COMMUNICATION WITH BRAKE SYSTEM CONTROL MODULE "A" MISSING MESSAGE; DTC U0140-87: LOST COMMUNICATION WITH BODY CONTROL MODULE MISSING MESSAGE; DTC U0241-87: LOST COMMUNICATION WITH HEADLAMP CONTROL MODULE "A" MISSING MESSAGE; DTC U114F-87: LOST COMMUNICATION WITH POWER INTEGRATION MODULE MISSING MESSAGE [11/2023 - ]DESCRIPTION
2025 Toyota Highlander XLE, FWD
DTC U0129-87: Lost Communication with Brake System Control Module "A" Missing Message; DTC U0140-87: Lost Communication with Body Control Module Missing Message; DTC U0241-87: Lost Communication with Headlamp Control Module "A" Missing Message; DTC U114F-87: Lost Communication with Power Integration Module Missing Message [11/2023 - ]: Description
2025 Toyota Highlander XLE, FWDSECTION Description
These DTCs are stored if a CAN communication malfunction occurs between the headlight ECU sub-assembly RH and other ECUs.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U0129-87 | Lost Communication with Brake System Control Module "A" Missing Message | for HV Model:
for Gasoline Model:
|
CAN communication system | Headlight Control (Sub) |
| U0140-87 | Lost Communication with Body Control Module Missing Message | The headlight ECU sub-assembly RH does not receive data from the main body ECU (multiplex network body ECU) for approximately 10 seconds or more. | CAN communication system | Headlight Control (Sub) |
| U0241-87 | Lost Communication with Headlamp Control Module "A" Missing Message | The headlight ECU sub-assembly RH does not receive data from the headlight ECU sub-assembly LH circuit plate for approximately 10 seconds or more. | CAN communication system | Headlight Control (Sub) |
| U114F-87 | Lost Communication with Power Integration Module Missing Message | The headlight ECU sub-assembly RH does not receive data from the main body ECU (multiplex network body ECU) for approximately 10 seconds or more. | CAN communication system | Headlight Control (Sub) |
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.