AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System) > DIAGNOSIS SYSTEM

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CHECK DLC3

  1. Check the DLC3 (Click here).


PANEL DIAGNOSIS (INDICATOR CHECK)

  1. Turn the ignition switch off.



    2. E176784

  2. Press and hold the A/C control AUTO switch and Recirculation/Fresh switch simultaneously, and turn the ignition switch to ON. Continue holding the 2 switches unit the panel diagnosis mode begins.




  3. E176785E01

    Check that all indicators and the display area are turned on and off 4 times in succession at 1-second intervals.

    HINT:
    After the indicator check is completed, the system automatically enters sensor check mode.

  4. Press the OFF switch to terminate the panel diagnosis.


PANEL DIAGNOSIS (SENSOR CHECK)

  1. Perform the indicator check.

    HINT:
    After the indicator check is completed, the system automatically enters sensor check mode.



    2. E176786

  2. Check the sensor check results displayed on the set temperature display.
    Result
    		Code Display
    Present malfunction
    		Blinks
    Past malfunction
    		Blinks

    HINT:
    1. The illustration shows the display when code 21 is output.
    2. When 2 or more sensor check codes are detected, the codes are displayed in ascending numerical order.
    3. In cases with 2 or more codes, if they are difficult to read, press the DEF switch to activate the step operation and display them one by one.
    4. The codes are displayed in ascending numerical order as the DEF switch is pressed.

  3. When any sensor check codes are displayed, refer to the DTC chart (Click here ).

  4. Press the OFF switch to terminate the panel diagnosis.

    HINT:
    Pressing the AUTO switch returns to sensor check mode.


PANEL DIAGNOSIS (CLEAR SENSOR CHECK CODE)

  1. Inspect, and repair or replace the malfunctioning parts.



    2. E176787E01

  2. Clear the sensor check codes.

    1. While pressing the DEF switch during sensor check mode, press the Rr DEF switch.

      HINT:
      Sensor check codes can be cleared by removing the HTG-IG fuse of the instrument panel junction block assembly (main body ECU) for more than 60 seconds.

  3. Perform the sensor check and confirm that normal code 00 is displayed.