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

DTC Code DTC Name
U0123 Lost Communication with Yaw Rate Sensor Module
U0100 Lost Communication with ECM
U0126 Lost Communication With Steering Angle Sensor Module
U0129 Lost Communication with Brake System Control Module
U0155 Lost Communication with Combination Meter

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
U0100 The pre-crash safety city sensor is unable to receive data from the ECM continuously for 2 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 yaw rate sensor continuously for 5 seconds or more

  • CAN communication system

  • 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 continuously for 2 seconds or more

  • CAN communication system

  • Spiral with sensor cable sub-assembly

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

  • CAN communication system

  • Brake actuator 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 for approximately 80 seconds

  • CAN communication system

  • Combination meter assembly

  • Pre-crash safety city sensor

PROCEDURE


  1. CHECK FOR DTC


    1. Clear the DTCs Click here.

    2. Check for DTCs Click here.

      Result
      Result Proceed to
      DTCs are not output A
      DTCs are output B

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here