AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System), Diagnostic DTC:U0100, U0142, U0155

DTC Code DTC Name
U0100 Lost Communication with ECM
U0142 Lost Communication with Main Body ECU
U0155 Lost Communication with Combination Meter

DESCRIPTION

The air conditioning amplifier communicates with the ECM, main body ECU (multiplex network body ECU) and combination meter through the CAN communication system.

DTC Code DTC Detection Condition Trouble Area
U0100 Lost communication with the ECM.

  • CAN communication system

  • ECM
U0142 Lost communication with the main body ECU.

  • CAN communication system

  • Main body ECU (multiplex network body ECU)
U0155 Lost communication with the combination meter.

  • CAN communication system

  • Combination meter assembly

PROCEDURE


  1. CHECK FOR DTC (CAN COMMUNICATION SYSTEM)


    1. Use the intelligent tester to check if the CAN communication system is functioning normally.

      Result
      Result Proceed to
      CAN DTC is not output A
      CAN DTC is output (for LHD with Entry and Start System) B
      CAN DTC is output (for LHD without Entry and Start System) C
      CAN DTC is output (for RHD with Entry and Start System) D
      CAN DTC is output (for RHD without Entry and Start System) E

    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM Click here

    C

    GO TO CAN COMMUNICATION SYSTEM Click here

    D

    GO TO CAN COMMUNICATION SYSTEM Click here

    E

    GO TO CAN COMMUNICATION SYSTEM Click here