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 HYBRID XLEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSAUDIO / VIDEO SYSTEM - DIAGNOSTIC CODES (2 OF 2) & SYMPTOM TESTS (1 OF 2)AUDIO AND VISUAL SYSTEMDTC U0073: SENDING MALFUNCTION (NAVIGATION TO APGS); DTC U0100: ENGINE ECU COMMUNICATION; DTC U0129: VSC (ECB) ECU COMMUNICATION; DTC U0140: LOST COMMUNICATION WITH BODY CONTROL MODULE; DTC U0155: METER ECU COMMUNICATION; DTC U0164: AIR CONDITIONER ECU COMMUNICATION; DTC U0198: LOST COMMUNICATION WITH TELEMATIC CONTROL MODULE; DTC U0265: LOST COMMUNICATION WITH IMAGE PROCESSING SENSOR A; DTC U0293: HV ECU COMMUNICATION; DTC U1110: CLEARANCE SONAR ECU COMMUNICATION [12/2019 - 10/2022]DESCRIPTION
2025 Toyota Highlander Hybrid XLE
DTC U0073: Sending Malfunction (Navigation to APGS); DTC U0100: Engine ECU Communication; DTC U0129: VSC (ECB) ECU Communication; DTC U0140: Lost Communication with Body Control Module; DTC U0155: Meter ECU Communication; DTC U0164: Air Conditioner ECU Communication; DTC U0198: Lost Communication with Telematic Control Module; DTC U0265: Lost Communication with Image Processing Sensor A; DTC U0293: HV ECU Communication; DTC U1110: Clearance Sonar ECU Communication [12/2019 - 10/2022]: Description
2025 Toyota Highlander Hybrid XLESECTION Description
These DTCs are stored when a malfunction occurs in the CAN communication circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| U0073 | Sending Malfunction (Navigation to APGS) | CAN bus connection error | CAN communication system |
| U0100 | Engine ECU Communication | CAN reception error | CAN communication system |
| U0129 | VSC (ECB) ECU Communication | CAN reception error | CAN communication system |
| U0140 | Lost Communication with Body Control Module | CAN reception error | CAN communication system |
| U0155 | Meter ECU Communication | CAN reception error | CAN communication system |
| U0164 | Air Conditioner ECU Communication | CAN reception error | CAN communication system |
| U0198 | Lost Communication with Telematic Control Module | CAN reception error | CAN communication system |
| U0265 | Lost Communication with Image Processing Sensor A | CAN reception error | CAN communication system |
| U0293 | HV ECU Communication | CAN reception error | CAN communication system |
| U1110 | Clearance Sonar ECU Communication | CAN reception error | CAN communication system |
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.