LANE DEPARTURE ALERT SYSTEM, Diagnostic DTC:U0101, U0123, U0129, U0142, U0155

DTC Code DTC Name
U0101 Lost Communication with TCM
U0123 Lost Communication with Yaw Rate Sensor Module
U0129 Lost Communication with Brake System Control Module
U0142 Lost Communication with Body Control Module "B"
U0155 Lost Communication with Instrument Panel Cluster (IPC) Control Module (Combination Meter)

DESCRIPTION

These DTCs are output when a communication malfunction occurs between the sensors and ECUs.

DTC Code DTC Detection Condition Trouble Area
U0101 While the vehicle is being driven at 1 km/h or 1 mph or more, communication between the power management control ECU and lane departure warning camera stops for 5 seconds or more.

  • CAN communication system

  • Power management control ECU

  • Lane departure warning camera
U0123 While the vehicle is being driven at 1 km/h or 1 mph or more, communication between the yaw rate sensor and lane departure warning camera stops for 5 seconds or more.

  • CAN communication system

  • Yaw rate sensor)

  • Lane departure warning camera
U0129 While the power switch is on (IG), communication between the brake booster with master cylinder assembly (skid control ECU) and lane departure warning camera stops for 5 seconds or more.

  • CAN communication system

  • Skid control ECU (brake booster with master cylinder assembly)

  • Lane departure warning camera
U0142 While the power switch is on (IG), communication between the main body ECU (multiplex network body ECU) and lane departure warning camera stops for 5 seconds or more.

  • CAN communication system

  • Main body ECU (multiplex network body ECU)

  • Lane departure warning camera
U0155 While the power switch is on (IG), communication between the combination meter sub-assembly and lane departure warning camera stops for 50 seconds or more.

  • CAN communication system

  • Combination meter sub-assembly

  • Lane departure warning camera

PROCEDURE


  1. CHECK FOR DTCs (LANE DEPARTURE ALERT SYSTEM)


    1. Clear the DTCs Click here.

    2. Check the 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