HEADUP DISPLAY SYSTEM, Diagnostic DTC:U0100, U0142, U0163, U023A, U1104

DTC Code DTC Name
U0100 Lost Communication with ECM / PCM "A"
U0142 Lost Communication with Body Control Module "B"
U0163 Lost Communication with Navigation Control Module
U023A Lost Communication with Front Camera Module
U1104 Lost Communication with Driving Support ECU

DESCRIPTION

The headup display (meter mirror sub-assembly) communicates with the ECM, main body ECU (multiplex network body ECU), radio receiver assembly, forward recognition camera*1 and driving support ECU assembly*2 via CAN communication.

DTC No. Detection Item DTC Detection Condition Trouble Area Memory Note
U0100 Lost Communication with ECM / PCM "A"

When IG voltage is 9.5 V or more and the following condition is detected:


  • No communication with ECM continues for 2 seconds or more

  • ECM

  • CAN communication system

  • Headup display (Meter mirror sub-assembly)

 DTC stored -
U0142 Lost Communication with Body Control Module "B"

When IG voltage is 9.5 V or more and the following condition is detected:


  • No communication with main body ECU (multiplex network body ECU) continues for 3 seconds or more

  • Main body ECU (multiplex network body ECU)

  • CAN communication system

  • Headup display (Meter mirror sub-assembly)

 DTC stored -
U0163 Lost Communication with Navigation Control Module

When IG voltage is 9.5 V or more and the following condition is detected:


  • No communication with radio receiver assembly continues for 3 seconds or more

  • Radio receiver assembly

  • CAN communication system

  • Headup display (Meter mirror sub-assembly)

 DTC stored -
U023A Lost Communication with Front Camera Module

When IG voltage is 9.5 V or more and the following condition is detected:


  • No communication with forward recognition camera continues for 10 seconds or more

  • Forward recognition camera

  • CAN communication system

  • Headup display (Meter mirror sub-assembly)

 DTC stored w/ LKA/LDA
U1104 Lost Communication with Driving Support ECU

When IG voltage is 9.5 V or more and the following condition is detected:


  • No communication with driving support ECU assembly continues for 10 seconds or more

  • Driving support ECU assembly

  • CAN communication system

  • Headup display (Meter mirror sub-assembly)

 DTC stored w/ Pre-crash Safety System

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


    1. Check if CAN communication DTCs are output.

      Click here

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

    A

    GO TO CAN COMMUNICATION SYSTEM Click here

    B

    USE SIMULATION METHOD TO CHECK Click here