CRUISE CONTROL SYSTEM, Diagnostic DTC:U0122

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

DESCRIPTION

Send vehicle speed signal to skid control ECU assembly, and then it is sent to power management control ECU.

DTC Code DTC Detection Condition Trouble Area
U0122 While power switch is on (IG), communication stop between skid control ECU assembly and power management control ECU continues for 1 second or more
  • CAN communication system

  • Skid control ECU assembly

  • Power management control ECU

INSPECTION PROCEDURE


PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Select "Bus Check" from the "System Select"

      for LHD: Click here

      for RHD: Click here

    2. Select "Communication Malfunction DTC" from the "Bus Check" screen, and then select "Enter"

      for LHD: Click here

      for RHD: Click here

      OK
      CAN communication system DTC is not output.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B
    C
    A