DYNAMIC RADAR CRUISE CONTROL SYSTEM, Diagnostic DTC:U0100, U0125, U0126, U0129, U0235, U1104

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
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
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
U0100 While dynamic radar cruise control is either preparing for operation or operating and vehicle speed is 5 km/h (3 mph) or more, communication stop between ECM and driving support ECU continues for 1 second or more

  • ECM

  • CAN communication system

  • Driving support ECU
U0125 While dynamic radar cruise control is either preparing for operation or operating and engine switch is on (IG), communication stop between yaw rate sensor and driving support ECU continues for 1 second or more

  • Yaw rate sensor

  • CAN communication system

  • Driving support ECU
U0126 While dynamic radar cruise control is either preparing for operation or operating and engine switch is on (IG), communication stop between spiral with sensor cable sub-assembly and driving support ECU continues for 1 second or more

  • Spiral with sensor cable sub-assembly

  • CAN communication system

  • Driving support ECU
U0129 While dynamic radar cruise control is either preparing for operation or operating and engine switch is on (IG), communication stop between Brake actuator Assembly and driving support ECU continues for 1 second or more

  • Brake actuator Assembly

  • CAN communication system

  • Driving support ECU
U0235 While dynamic radar cruise control is either preparing for operation or operating and engine switch is on (IG), communication stop between 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 dynamic radar cruise control is either preparing for operation or operating and engine switch is on (IG), communication stop between driving support ECU and millimeter wave radar sensor, ECM or brake actuator assembly continues for 1 second or more

  • Driving support ECU

  • CAN communication system

  • Millimeter wave radar sensor assembly

  • ECM

  • Brake actuator 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