Lexus ES manuals

Lexus ES: Lost Communication with Brake System Control Module (U0129)

Lexus ES (XZ10) Service Manual / Suspension / Tire Pressure Monitoring / Tire Pressure Warning System (for Hv Model) / Lost Communication with Brake System Control Module (U0129)

DESCRIPTION

The tire pressure warning ECU and receiver receives signals from the skid control ECU (brake booster with master cylinder assembly) via CAN communication system.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

U0129

Lost Communication with Brake System Control Module

Lost communication with skid control ECU (brake booster with master cylinder assembly)

  • CAN communication system
  • Skid control ECU (Brake booster with master cylinder assembly)

-

PROCEDURE

1.

GO TO CAN COMMUNICATION SYSTEM

(a) Go to CAN communication system.

Click here

NEXT

END

READ NEXT:

 Tire Position Not Identified

DESCRIPTION The tire pressure warning ECU and receiver identifies the tire position for each tire pressure warning valve and transmitter according to the wheel speed signals from the skid control ECU

 Tire Pressure Warning Light Circuit

DESCRIPTION If the tire pressure warning ECU and receiver detects any problems, the tire pressure warning light blinks for 1 minute then illuminates, and tire pressure monitoring is disabled at the sa

 Cannot Switch to Automatic ID Registration Mode

DESCRIPTION When "Change Wheel Set" is selected on the multi-information display and the "OK" switch (steering pad switch assembly) is pushed and held, the system enters ID registration mode and the t

SEE MORE:

 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect

 Automatic High Beam System (B124B)

DESCRIPTION The main body ECU (multiplex network body ECU) determines the status of the automatic high beam system based on the automatic high beam system signal from the forward recognition camera. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from B124B Au

© 2016-2026 Copyright www.lexguide.net