Lexus ES: 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:
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
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
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:
REMOVAL
PROCEDURE
1. REMOVE BATTERY SERVICE HOLE COVER
(a) Remove the clip.
Remove in this Direction
(b) Disengage the 7 claws as shown in the illustration.
(c) Disengage the guide to remove the battery service hole cover as shown in
the illustration.
ComponentsCOMPONENTS ILLUSTRATION *1 PURGE VALVE (PURGE VSV) *2 NO. 1 FUEL VAPOR FEED HOSE *3 NO. 2 FUEL VAPOR FEED HOSE - - N*m (kgf*cm, ft.*lbf): Specified torque - - RemovalREMOVAL PROCEDURE 1. REMOVE NO. 1 ENGINE COVER SUB-ASSEMBLY Click here 2. REMOVE PUR
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