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Using Heater & Air Conditioning Control Panel

  1. The Heater and Air Conditioning (H-A/C) control panel is used to display all vehicle modules Diagnostic Trouble Codes (DTCs). To enter diagnostic mode, simultaneously press OFF button and TEMP button on H-A/C control panel. H-A/C control panel will illuminate for 5 seconds, then display "-00". Press Fan Up/Down button to increase or decrease displayed system ("-01"=CCM, "-02"=HVAC, "-03"=SIR, "-04"=ABS/TCS). Select "-01" for CCM DTCs.
  2. Press OUT TEMP button to display DTCs. While DTCs are being displayed, press fan up/down button to return display to system selected. If H-A/C control panel displays "--", H-A/C control is not receiving serial data because of a fault with the serial data line. If H-A/C control panel displays "00" after selecting "-01" (CCM DTCs), no codes are present.
  3. If more than one code is present, codes will display beginning with the lowest current code to the highest current code, followed by the lowest history code, then the highest history code. Codes will cycle sequentially 16 seconds at a time until diagnostic mode is exited or ignition is turned off. To exit diagnostic mode, press any function button (except OFF button and either DEFOG button).
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