ROAD SIGN ASSIST SYSTEM, Diagnostic DTC:U0101, U0123, U0129, U0134, U0142, U0155, U0293

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
U0134 Lost Communication with DRS Module
U0142 Lost Communication with Body Control Module "B"
U0155 Lost Communication with Combination Meter
U0293 Lost Communication with HV ECU

DESCRIPTION

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

DTC No. DTC Detection Condition Trouble Area
U0101 While the vehicle is being driven at 1 km/h (1 mph) or more, a communication error between the power management control ECU and the forward recognition camera is detected for approximately 5 seconds or more.

  • CAN communication system

  • Power management control ECU

  • Forward recognition camera
U0123 While the vehicle is being driven at 1 km/h (1 mph) or more, a communication error between the yaw rate sensor and the forward recognition camera is detected for approximately 5 seconds or more.

  • CAN communication system

  • Yaw rate sensor

  • Forward recognition camera
U0129 2 seconds after the power switch is turned on (IG), a communication error between the skid control ECU and the forward recognition camera is detected for approximately 5 seconds or more.

  • CAN communication system

  • Skid control ECU assembly

  • Forward recognition camera
U0134 2 seconds after the power switch is turned on (IG), a communication error between the DRS ECU (rear steering control ECU) and the forward recognition camera is detected for approximately 5 seconds or more.

  • CAN communication system

  • DRS ECU (rear steering control ECU)

  • Forward recognition camera
U0142 2 seconds after the power switch is turned on (IG), a communication error between the main body ECU (multiplex network body ECU) and the forward recognition camera is detected for approximately 5 seconds or more.

  • CAN communication system

  • Main body ECU (multiplex network body ECU)

  • Forward recognition camera
U0155 2 seconds after the power switch is turned on (IG), a communication error between the combination meter assembly and the forward recognition camera is detected for approximately 50 seconds or more.

  • CAN communication system

  • Combination meter assembly

  • Forward recognition camera
U0293 2 seconds after the power switch is turned on (IG), a communication error between the power management control ECU and the forward recognition camera is detected for approximately 5 seconds.

  • CAN communication system

  • Power management control ECU

  • Forward recognition camera

PROCEDURE


  1. CHECK DTC OUTPUT (ROAD SIGN ASSIST SYSTEM)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Road Sign Assist / Trouble Codes.

    5. Check for DTCs Click here.

      Result
      Result Proceed to
      DTC U0101, U0123, U0129, U0134, U0142, U0155 and U0293 are not output A
      DTC U0101, U0123, U0129, U0134, U0142, U0155 or U0293 is output (for LHD) B
      DTC U0101, U0123, U0129, U0134, U0142, U0155 or U0293 is output (for RHD) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here