DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:U0125, U0126, U0129, U0235, U0293, U1104

DTC Code DTC Name
U0125 Lost Communication with Yaw Rate Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module
U0129 Lost Communication with Brake System Control Module
U0235 Lost Communication with Cruise Control Front Distance Range Sensor
U0293 Lost Communication with Hybrid Control Module
U1104 Lost Communication with Driving Support ECU

DESCRIPTION

This DTC is output when a communication malfunction occurs between the sensors and ECUs.

DTC Code DTC Detection Condition Trouble Area
U0125 The driving support ECU is unable to receive certain data from the yaw rate sensor for 0.77 seconds or more.

  • Yaw rate sensor

  • CAN communication system

  • Driving support ECU
U0126 The driving support ECU is unable to receive certain data from the spiral with sensor cable sub-assembly (steering angle sensor) for 3.76 seconds or more.

  • Spiral with sensor cable sub-assembly

  • CAN communication system

  • Driving support ECU
U0129 The driving support ECU is unable to receive certain data from the skid control ECU assembly for 5.24 seconds or more.

  • Skid control ECU assembly

  • CAN communication system

  • Driving support ECU
U0235 The data sent to the driving support ECU from the millimeter wave radar sensor assembly is abnormal for 0.65 second or more.

  • Millimeter wave radar sensor assembly

  • CAN communication system

  • Driving support ECU
U0239 The driving support ECU is unable to receive certain data from the power management control ECU for 3.8 seconds or more.

  • CAN communication system

  • Power management control ECU

  • Driving support ECU
U1104 The driving support ECU data sent to the ECM, skid control ECU assembly or millimeter wave radar sensor assembly is lost for 0.19 second or more.

  • Driving support ECU

  • CAN communication system

  • Millimeter wave radar sensor assembly

  • Power management control ECU

  • Skid control ECU assembly

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

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    A

    USE SIMULATION METHOD TO CHECK Click here