VEHICLE STABILITY CONTROL SYSTEM(for TMMF Made), Diagnostic DTC:U0073, U0100, U0123, U0126

DTC Code DTC Name
U0073 Control Module Communication Bus Off
U0100 Lost Communication with ECM / PCM
U0123 Lost Communication with Yaw Rate Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module

DESCRIPTION

The skid control ECU exchanges signals with the ECM, steering angle sensor, yaw rate and deceleration sensor, power steering ECU, main body ECU and combination meter via CAN communication.

DTC No. DTC Detection Conditions Trouble Areas
U0073

When either of following conditions detected:


  1. Bus off conditions continue for approximately 1 second.

  2. Bus off condition occurs 10 times in 8 seconds period.

 CAN communication system
U0100 When engine speed 500 rpm or more, vehicle speed 15 km/h (9 mph) or more, and power supply voltage normal (9.7 V or more), skid control ECU receives no ECM data or received message not correct for approximately 1.2 seconds. CAN communication system
U0123 Supplied voltage normal (9.7 V or more), skid control ECU receives no yaw rate sensor data for 0.1 seconds. CAN communication system
U0126 Supplied voltage normal (9.7 V or more), skid control ECU receives no steering angle sensor data for 0.1 seconds. CAN communication system

PROCEDURE


  1. RECONFIRM DTC


    1. Clear the DTC(s) Click here.

    2. Check if the same DTC(s) is output Click here.

      Result
      Result Proceed to
      DTC output (w/o Toyota Safety Sense) A
      DTC output (w/ Toyota Safety Sense) B
      DTC not output C

    A

    GO TO CAN COMMUNICATION SYSTEM Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    END