COMBUSTION TYPE POWER HEATER SYSTEM HOW TO PROCEED WITH TROUBLESHOOTING

DTC Code DTC Name
HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

Tech Tips


  • Use these procedures to troubleshoot the combustion type power heater system.

  • *: Use the DTC tester.

PROCEDURE


  1. VEHICLE BROUGHT TO WORKSHOP

    Result
    Proceed to
    NEXT

    NEXT

  2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK

    Result
    Result
    NEXT

    NEXT

  3. INSPECT BATTERY VOLTAGE


    1. Measure the battery voltage.

      Standard voltage
      11 to 14 V

      If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK FOR DTC*


    1. Check for DTCs and note any codes that are output.

      Click here

    2. Clear the DTCs.

      Click here

    3. Recheck for DTCs.

      Click here

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

    B

    Go to DIAGNOSTIC TROUBLE CODE CHART Click here

    A

  5. PROBLEM SYMPTOMS TABLE


    1. Refer to the Problem Symptoms Table.

      Click here

      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 Click here

    A

  6. OVERALL ANALYSIS AND TROUBLESHOOTING


    1. Terminals of ECU

      Click here

    2. On-vehicle Inspection

    3. Inspection

      Result
      Proceed to
      NEXT

    NEXT

  7. ADJUST, REPAIR OR REPLACE

    Result
    Proceed to
    NEXT

    NEXT

  8. CONFIRMATION TEST

    Result
    Proceed to
    NEXT

    NEXT

    END