AIR CONDITIONING SYSTEM, Diagnostic DTC:U0142, U0155, U0293

DTC Code DTC Name
U0142 Lost Communication with Main Body ECU
U0155 Lost Communication with Combination Meter
U0293 Lost Communication with HV ECU

DESCRIPTION

The air conditioning amplifier assembly communicates with the hybrid vehicle control ECU, main body ECU and combination meter assembly through the CAN communication system.

DTC No. DTC Detection Condition Trouble Area
U0142 Lost Communication with main body ECU.

  • CAN communication system

  • Main body ECU

  • Air conditioning amplifier assembly
U0155 Lost Communication with combination meter assembly.

  • CAN communication system

  • Combination meter assembly

  • Air conditioning amplifier assembly
U0293 Lost Communication with HV ECU.

  • CAN communication system

  • Hybrid vehicle control ECU

  • Air conditioning amplifier assembly

PROCEDURE


  1. CHECK CAN COMMUNICATION SYSTEM


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

      OK
      CAN DTC is not output
      Result
      Result Proceed to
      OK A
      NG*1 B
      NG*2 C

      • *1: w/ Toyota Safety Sense

      • *2: w/o Toyota Safety Sense


    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    GO TO CAN COMMUNICATION SYSTEM (w/ Toyota Safety Sense) Click here

    C

    GO TO CAN COMMUNICATION SYSTEM (w/o Toyota Safety Sense) Click here