Lexus NX: Lost Communication with Brake System Control Module (U0129,U0293,U1104)
DESCRIPTION
The power steering ECU assembly receives signals from the hybrid vehicle control ECU, skid control ECU(brake booster with master cylinder assembly) and forward recognition camera via the CAN communication system.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate | Return-to-normal Condition | Note |
|---|---|---|---|---|---|---|
| U0129 | Lost Communication with Brake System Control Module | Lost communication with skid control ECU (brake booster with master cylinder assembly) |
| On | After normal confirmation | - |
| U0293 | Lost Communication with Hybrid Control Module | Lost communication with hybrid vehicle control ECU |
| On | After normal confirmation | - |
| U1104 | Lost Communication with Driving Support ECU | Lost communication with Forward recognition camera |
| Off | After normal confirmation | - |
PROCEDURE
| 1. | GO TO CAN COMMUNICATION SYSTEM |
(a) Go to CAN Communication System.
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| NEXT | .gif) | END |
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Power Steering Warning Light Circuit
DESCRIPTION The power steering ECU is connected to the combination meter via CAN communication. If any of the following conditions are detected, the power steering warning light remains on.
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Problem Symptoms Table
PROBLEM SYMPTOMS TABLE NOTICE: When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored. HINT:
Front Recognition Camera Heater Malfunction (C1AAE00)
DESCRIPTION The forward recognition camera controls the current to the forward recognition hood with heater sub-assembly. C1AAE00 is stored when the forward recognition camera detects a forward recognition hood with heater sub-assembly operation circuit malfunction. DTC No. Detection Item DTC
