COMBUSTION TYPE POWER HEATER SYSTEM DIAGNOSIS SYSTEM

Note

The cause of problems (such as abnormal voltage, overheating, short circuits, component failure, etc.) can be checked by connecting the DTC tester and reading DTCs.


  1. DTC CHECK/CLEAR


    1. Turn the ignition switch off.

    2. Disconnect the A54 heater assembly connector.

    3. Connect connector A of the DTC tester to the vehicle wire harness.

    4. Connect connector B of the DTC tester to the heater assembly connector.

    5. Start the engine.

    6. Read the DTCs.


      1. Pressing the DTC call button displays a 3-digit number DTC.

    7. Clear the DTCs.


      1. Press both memory clear buttons together for more than 2 seconds.

        A003EGYE03

  2. DESCRIPTION OF DTC TESTER

    Tech Tips

    The DTC tester is able to store up to 5 DTCs in memory. If it is full, new data is written and the oldest DTCs are cleared.

    Item Description
    AF Current Malfunction (Blinking in the event of a current malfunction)
    DIAG DTC (Example: 064 Flame sensor malfunction)
    DTC Call Button Reads the DTCs
    Memory Clear Button Clears the DTC memory
    DTC Memory Call Button (>) Cycles through the DTC memory (F1 - F5)
    DTC Memory Call Button (<) Cycles through the DTC memory (F5 - F1)