LANE DEPARTURE ALERT SYSTEM, Diagnostic DTC:U0100, U0123, U0126, U0129, U0155

DTC Code DTC Name
U0100 Lost Communication with ECM
U0123 Lost Communication with Yaw Rate Sensor Module
U0126 Lost Communication with Steering Angle Sensor Module
U0129 Lost Communication with Brake System Control Module
U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
U0100 The pre-crash safety city sensor is unable to receive data from the ECM continuously for 9 seconds or more.

  • CAN communication system

  • ECM

  • Pre-crash safety city sensor
U0123 The pre-crash safety city sensor is unable to receive data from the airbag sensor assembly (yaw rate sensor) continuously for 5 seconds or more.

  • CAN communication system

  • Airbag sensor assembly (yaw rate sensor)

  • Pre-crash safety city sensor
U0126 The pre-crash safety city sensor is unable to receive data from the spiral with sensor cable sub-assembly (steering angle sensor) continuously for 2 seconds or more.

  • CAN communication system

  • Spiral cable sub-assembly (steering angle sensor)

  • Pre-crash safety city sensor
U0129 The pre-crash safety city sensor is unable to receive data from the skid control ECU (brake actuator assembly) for 2.24 seconds or more.

  • CAN communication system

  • Skid control ECU (brake actuator assembly)

  • Pre-crash safety city sensor
U0155 The pre-crash safety city sensor is unable to receive data from the combination meter assembly continuously for 80 seconds or more.

  • CAN communication system

  • Combination meter assembly

  • Pre-crash safety city sensor

PROCEDURE


  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)


    1. Clear the DTCs Click here.

    2. Make sure that the DTC detection conditions are met.

      Tech Tips

      If the detection conditions are not met, the system cannot detect the malfunction.

    3. Check for DTCs Click here.

      Result
      Result Proceed to
      CAN communication system DTCs are not output A
      CAN communication system DTCs are output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here