LANE DEPARTURE ALERT SYSTEM, Diagnostic DTC:U0123, U0126, U0129, U0155, U0293

DTC Code DTC Name
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
U0293 Lost Communication with Hybrid Vehicle Control System

DESCRIPTION

DTC Code DTC Detection Condition Trouble Area
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 brake booster with master cylinder assembly (skid control ECU) for 2.24 seconds or more.

  • CAN communication system

  • Brake booster with master cylinder assembly (skid control ECU)

  • 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
U0293 The pre-crash safety city sensor is unable to receive data from the hybrid vehicle control ECU continuously for 80 seconds or more.

  • CAN communication system

  • Hybrid vehicle control ECU

  • 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