CRUISE CONTROL SYSTEM, Diagnostic DTC:U0122

DTC Code DTC Name
U0122 Lost Communication with Vehicle Dynamics Control Module

DESCRIPTION

Send vehicle speed signal to brake actuator assembly, and then it is sent to ECM.

DTC Code DTC Detection Condition Trouble Area
U0122 While ignition switch to ON, communication stop between brake actuator and ECM continues for 1 second or more

  • Brake actuator assembly

  • CAN communication system

  • ECM

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check the DTCs. Click here.

      OK
      DTC U0122 is not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD with Entry and Start System) B
      NG (for LHD without Entry and Start System) C
      NG (for RHD with Entry and Start System) D
      NG (for RHD without Entry and Start System) E

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    D

    GO TO CAN COMMUNICATION SYSTEM Click here

    E

    GO TO CAN COMMUNICATION SYSTEM Click here