LANE-KEEPING ASSIST SYSTEM, Diagnostic DTC:U0122, U0123, U0131, U1104, U1119

DTC Code DTC Name
U0122 Lost Communication with Vehicle Stability Control Module
U0123 Lost Communication with Yaw Rate Sensor Module
U0131 Lost Communication with Power Steering Control Module
U1104 Lost Communication with Driving Support ECU
U1119 Lost Communication with Object Recognition ECU (CAN)

DESCRIPTION

DTC Code DTC Detection Condition Trouble Are
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
U0131 While the ignition switch is ON, a communication stop between the power steering ECU and driving support ECU continues for 1 second or more.

  • Power steering ECU

  • 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, power steering ECU or lane recognition camera sensor continues for 1 second or more.

  • Brake actuator assembly (Skid control ECU)

  • Power steering ECU

  • Lane recognition camera sensor assembly

  • CAN communication system

  • Driving support ECU
U1119 While the ignition switch is ON, a communication stop between the lane recognition camera sensor and driving support ECU continues for 1 second or more.

  • Lane recognition camera sensor assembly

  • 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 stored.

PROCEDURE


  1. CHECK FOR DTC (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