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 & EQUIPMENTCOLLISION/AVOIDANCEDYNAMIC RADAR CRUISE CONTROL SYSTEM (HV) - DIAGNOSTIC CODES & CIRCUIT TESTSDYNAMIC RADAR CRUISE CONTROL SYSTEM (FOR HV MODEL)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 U0155-87: LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE MISSING MESSAGE; DTC U0293-87: LOST COMMUNICATION WITH HYBRID POWERTRAIN CONTROL MODULE MISSING MESSAGE; DTC U1106-87: LOST COMMUNICATION WITH ELECTRIC PARKING BRAKE MODULE MISSING MESSAGE [11/2023 - ]DESCRIPTION
2025 Toyota Highlander Hybrid XLE
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 U0155-87: Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message; DTC U0293-87: Lost Communication with Hybrid Powertrain Control Module Missing Message; DTC U1106-87: Lost Communication with Electric Parking Brake Module Missing Message [11/2023 - ]: Description
2025 Toyota Highlander Hybrid XLESECTION Description
The forward recognition camera communicates with each sensor and ECU via CAN communication.
If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | DTC Output from |
|---|---|---|---|---|
| U0126-87 | Lost Communication with Steering Angle Sensor Module Missing Message | When the ignition switch is ON for 2 seconds or more, a communication error between the forward recognition camera and steering sensor continues for 5 seconds or more. | CAN communication system | Radar Cruise 2 |
| U0129-87 | Lost Communication with Brake System Control Module Missing Message | When the ignition switch is ON for 2 seconds or more, a communication error between the forward recognition camera and No. 2 skid control ECU (brake actuator assembly) continues for 5 seconds or more. | CAN communication system | Radar Cruise 2 |
| U0155-87 | Lost Communication with Instrument Panel Cluster (IPC) Control Module Missing Message | When the ignition switch is ON for 2 seconds or more, a communication error between the forward recognition camera and combination meter assembly continues for 5 seconds or more. | CAN communication system | Radar Cruise 2 |
| U0293-87 | Lost Communication with Hybrid Powertrain Control Module Missing Message | When the dynamic radar cruise control system is operating, a communication malfunction between the hybrid vehicle control ECU and forward recognition camera is detected for 5 seconds or more. | CAN communication system | Radar Cruise 2 |
| U1106-87 | Lost Communication with Electric Parking Brake Module Missing Message | When the ignition switch is ON for 2 seconds or more, a communication error between the forward recognition camera and parking brake ECU assembly continues for 5 seconds or more. | CAN communication system | Radar Cruise 2 |
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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.