Air Conditioning System (For Hatchback) How To Proceed With Troubleshooting

Vehicle Interior. Yaris. Ncp93, 131
Heating Air Conditioning. Yaris. Ncp93, 131

  1. VEHICLE BROUGHT TO WORKSHOP

  2. INSPECT BATTERY VOLTAGE

  3. CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

  4. CHECK FOR DTC*

  5. PROBLEM SYMPTOMS TABLE

  6. OVERALL ANALYSIS AND TROUBLESHOOTING*

  7. ADJUST, REPAIR OR REPLACE

Air Conditioning System (For Hatchback) -- How To Proceed With Troubleshooting


HINT:
  1. Use the following procedures to troubleshoot the air conditioning system.
  2. *: Use the Techstream.


1.VEHICLE BROUGHT TO WORKSHOP

    NEXT


    2.INSPECT BATTERY VOLTAGE

    1. Inspect the battery voltage.

      Standard voltage:
      11 to 14 V
      If the voltage is below 11 V, recharge or replace the battery before proceeding.

    NEXT


    3.CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

    1. Use the Techstream 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 Hatchback except Separate Type Yaw Rate Sensor)
      		B
      CAN DTC is output (for Hatchback with Separate Type Yaw Rate Sensor)
      		C



    		B.
    GO TO CAN COMMUNICATION SYSTEM (YARIS_NCP93 RM000001RSO05UX.html)

    		C.
    GO TO CAN COMMUNICATION SYSTEM (YARIS_NCP93 RM000001RSO066X.html)
    A


    4.CHECK FOR DTC*

    1. Check for DTCs and note any codes that are output (YARIS_NCP93 RM000001GUF06ZX.html).

    2. Clear the DTCs.

    3. Recheck for DTCs. Based on the DTCs output above, try to force output of the A/C system DTC by simulating the operation indicated by the DTC.

      Result
      Result
      		Proceed to
      DTC is not output
      		A
      DTC is output
      		B



    		B.
    Go to step 7
    A


    5.PROBLEM SYMPTOMS TABLE

    1. Refer to the Problem Symptoms Table (YARIS_NCP93 RM000001M2W05EX.html).

      Result
      Result
      		Proceed to
      Fault is not listed in problem symptoms table
      		A
      Fault is listed in problem symptoms table
      		B



    		B.
    Go to step 7
    A


    6.OVERALL ANALYSIS AND TROUBLESHOOTING*

    1. Panel diagnosis (refrigerant shortage check) (YARIS_NCP93 RM000001FMN01MX.html)*1

      1. *1: w/ Cooler

    2. Data List / Active Test (YARIS_NCP93 RM000000PMG050X.html)

    3. Terminals of ECU (YARIS_NCP93 RM000001CXU00ZX.html)

    4. On-Vehicle Inspection

    5. Inspection

    6. Check for DTCs after checking harness and connector (YARIS_NCP93 RM000001GUF06ZX.html).


    NEXT


    7.ADJUST, REPAIR OR REPLACE

      NEXT

      END