DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:U0100, U0122, U0123, U0126, U0235, U1102, U1104

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0122 Lost Communication with Vehicle Dynamics Control Module
U0123 Lost Communication with Yaw Rate Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module
U0235 Lost Communication with Cruise Control Front Distance Range Sensor
U1102 Lost Communication with Radar Sensor
U1104 Lost Communication with Driving Support ECU

DESCRIPTION

DTC Code DTC Detection Condition Trouble Are
U0100 While the ignition switch is ON, a communication stop between the ECM and the skid control ECU or driving support ECU continues for 1 second or more.

  • Brake actuator assembly (Skid control ECU)

  • CAN communication system

  • Driving support ECU

  • ECM
U0122 While the ignition switch is ON, a communication stop between the skid control ECU and driving support ECU continues for 1 second or more.

  • Brake actuator assembly (Skid control ECU)

  • CAN communication system

  • Driving support ECU
U0123 While the ignition switch is ON, a communication stop between the yaw rate sensor and driving support ECU continues for 1 second or more.

  • Yaw rate sensor

  • CAN communication system

  • Driving support ECU
U0126 While the ignition switch is ON, a communication stop between the steering angle sensor and driving support ECU continues for 1 second or more.

  • Steering angle sensor

  • CAN communication system

  • Driving support ECU
U0235 While the ignition switch is ON, a communication stop between the millimeter wave radar sensor and driving support ECU continues for 1 second or more.

  • Millimeter wave radar sensor assembly

  • CAN communication system

  • Driving support ECU
U1102 While the ignition switch is ON, a communication stop between the millimeter wave radar sensor and driving support ECU continues for 1 second or more.

  • Millimeter wave radar sensor assembly

  • CAN communication system

  • Driving support ECU
U1104 While the ignition switch is ON, a communication stop between the driving support ECU and the skid control ECU or ECM continues for 1 second or more.

  • Brake actuator assembly (Skid control ECU)

  • ECM

  • CAN communication system

  • Driving support ECU

CAUTION / NOTICE / HINT

Tech Tips

This circuit uses CAN communication. Therefore, if there are any malfunctions in the communication circuit, one or more DTCs in the CAN communication system are output.

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Select "Bus Check" from the "System Select" screen on the intelligent tester.

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

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here