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AIR CONDITIONING SYSTEM DIAGNOSIS SYSTEM

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  1. DESCRIPTION


    1. Air conditioning system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the GTS to check for malfunctions and perform troubleshooting.

  2. CHECK DLC3


    1. Check the DLC3 (Click here).

  3. LIST OF OPERATION METHODS


    1. A0009ELE02

      By operating each of the air conditioning control switches as shown in the diagram below, it is possible to enter diagnostic check mode.

  4. INDICATOR CHECK


    1. Turn the power switch off.

    2. Turn the power switch on (ACC) and wait at least 5 seconds.

    3. A00041BE01

      Turn the power switch on (IG) while pressing the air conditioning panel AUTO switch and recirculation/fresh switch simultaneously. Hold both switches until the indicator check screen appears.

      Table 1. Text in Illustration
      *A w/ Multi-display (for LHD) *B w/ Multi-display (for RHD)
      *C w/o Multi-display - -
    4. A0004MDE01

      The indicator check is automatically performed when panel diagnosis is activated. Check that the indicators light up and go off 4 times at 1 second intervals continuously.

      Tip:

      • The sensor check automatically starts when the indicator check is completed.

      • Press the OFF switch to cancel check mode.

      Table 2. Text in Illustration
      *A w/ Multi-display *B w/ Multi-display (for LHD)
      *C w/ Multi-display (for RHD) *D w/o Multi-display
      *a Indicator Blinking Pattern *b ON
      *c OFF *d 1 Sec.

  5. SENSOR CHECK (DTC CHECK)


    1. Start the hybrid system and warm it up.

    2. Perform the indicator check.

      Tip:

      After the indicator check is completed, the system enters DTC check mode automatically.

    3. A0009P0E01

      Read the DTCs displayed on the display.

      Table 3. Text in Illustration
      *A w/ Multi-display (for LHD) *B w/ Multi-display (for RHD)
      *C w/o Multi-display - -
      *a Diagnostic Trouble Code (DTC) - -
      Note:

      In sensor check mode, which is automatically entered after indicator check mode, troubleshooting may be partially performed. Be sure to perform the sensor check again.

      Tip:

      Refer to Diagnostic Trouble Code Chart for details of the codes (Click here).


      • When there are no problems, DTC 00 is output.

      • As an example, the illustration shows that DTC 12 is output.

    4. A0007R1E01

      If the steps are difficult to read because they change automatically, press the driver side TEMP UP switch to display the steps one at a time so that they can be read easily. The items are displayed step by step each time the driver side TEMP UP switch is pressed.

      Tip:

      Press the OFF switch to finish panel diagnosis.

      Table 4. Text in Illustration
      *A w/ Multi-display (for LHD) *B w/ Multi-display (for RHD)
      *C w/o Multi-display - -

    5. Clear DTCs


      1. A0006JKE01

        During the sensor check, press the "FRONT DEF" switch and "REAR DEF" switch simultaneously.

        Table 5. Text in Illustration
        *A w/ Multi-display (for LHD) *B w/ Multi-display (for RHD)
        *C w/o Multi-display - -