Dtc U0129 Lost Communication With Skid Control Ecu

Vehicle Interior. Corolla. Zre142 Aze141
Meter Gauge Display. Corolla. Zre142 Aze141

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CONFIRM DTC OUTPUT

DTC U0129 Lost Communication with Skid Control ECU


DESCRIPTION

The combination meter communicates with the skid control ECU via the CAN communication system (CAN No. 1 Bus).

DTC No.
DTC Detection Condition
Trouble Area
U0129
When either of the following conditions is detected:
  1. 15 seconds have elapsed since engine started and IG voltage 10.5 V or more
  2. No communication with skid control ECU continues for 3 seconds or more (No communication with ECM and skid control ECU continues for 60 seconds or more)
  1. Skid control ECU
  2. CAN communication system

WIRING DIAGRAM


Corolla. Zre142 Aze141.Meter Gauge Display.Meter / Gauge System. Dtc U0129 Lost Communication With Skid Control Ecu


INSPECTION PROCEDURE

1.CONFIRM DTC OUTPUT

  1. Connect the Techstream to the DLC3.

  1. Turn the ignition switch to ON.

  1. Turn the Techstream on.

  1. Clear the stored DTCs by entering the following menus on the Techstream: Body Electrical / Trouble Codes.

  1. Drive the vehicle at more than 5 km/h (3.1 mph) for at least 60 seconds.

  1. Stop the vehicle.

  1. Check for DTCs (COROLLA_ZRE142 RM000000WIB0BUX.html).

    Result:
    Result
    		Proceed to
    DTC is output.
    		A
    DTC is not output.
    		B
    HINT:
    If the CAN communication system DTC U0129 and another DTC are output at the same time, perform troubleshooting for the CAN communication system DTC U0129 first.


B
USE SIMULATION METHOD TO CHECK (COROLLA_ZRE142 RM000000UZ108OX.html)
A

GO TO CAN COMMUNICATION SYSTEM (COROLLA_ZRE142 RM000000WI60ACX.html)