AIR CONDITIONING SYSTEM(for Manual Air Conditioning System), Diagnostic DTC:U0100, U0131, U0142, U0155

DTC Code DTC Name
U0100 Lost Communication with ECM
U0131 Lost Communication with Power Steering Control Module
U0142 Lost Communication with Main Body ECU
U0155 Lost Communication with Combination Meter

DESCRIPTION

The air conditioning amplifier communicates data with the ECM, main body ECU (instrument panel junction block assembly), power steering ECU assembly 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
U0131 Lost communication with the power steering control module.

  • CAN communication system

  • Power steering ECU assembly
U0142 Lost communication with the main body ECU.

  • CAN communication system

  • Main body ECU (Instrument panel junction block assembly)
U0155 Lost communication with the combination meter.

  • CAN communication system

  • Combination meter assembly

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

      OK
      CAN DTC is not output.

    OK

    USE SIMULATION METHOD TO CHECK Click here

    NG

    GO TO CAN COMMUNICATION SYSTEM Click here