LANE-KEEPING ASSIST SYSTEM, Diagnostic DTC:U0125, U0129, U0131, U1104, U1119

DTC Code DTC Name
U0125 Lost Communication with Yaw Rate Sensor Module
U0129 Lost Communication with Brake System Control Module
U0131 Lost Communication with Electric Power Steering ECU
U1104 Lost Communication with Driving Support ECU
U1119 Lost Communication with Object Recognition ECU (CAN)

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
U0125 While power switch is on (IG), communication stop between yaw rate sensor and driving support ECU continues for 4 seconds or more

  • Yaw rate sensor

  • CAN communication system

  • Driving support ECU
U0129 While power switch is on (IG), communication stop between skid control ECU assembly and driving support ECU continues for 5 seconds or more

  • Skid control ECU assembly

  • CAN communication system

  • Driving support ECU
U0131 While power switch is on (IG), communication stop between power steering ECU assembly and driving support ECU continues for 2 seconds or more

  • Power steering ECU assembly

  • CAN communication system

  • Driving support ECU
U1104 While power switch is on (IG), communication stop between lane recognition camera sensor assembly or , brake actuator assembly and driving support ECU continues for 2 seconds or more

  • Power steering ECU assembly

  • Skid control ECU Assembly

  • CAN communication system

  • Driving support ECU
U1119 While power switch is on (IG), communication stop between lane recognition camera sensor assembly and driving support ECU continues for 2 seconds or more

  • Lane recognition camera sensor assembly

  • CAN communication system

  • Driving support 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"

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