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Home >> Chrysler >> 2009 >> PT Cruiser Limited >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> (Cabin Compartment Node (CCN) - Electrical Diagnostics) >> DTC Troubleshooting >> B10C1-A/C Select Switch Stuck (CCN) >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR ACTIVE DTC B1001 OR B1002 IN THE CCN 
    1. Turn the ignition on.
    2. With the scan tool, read CCN DTCs.

      Does the scan tool display active: B1001 or B1002?

      Yes 

      No 

      • Go to step  2
  2. INSPECT THE A/C HEATER CONTROL FOR DAMAGE 
    1. Turn the ignition off.
    2. Inspect the A/C Heater Control for damage.

      Is the A/C Heater Control damaged?

      Yes 

      No 

      • Go to step  3
  3. INSPECT FOR OBJECT OR SUBSTANCE CAUSING THE A/C MODE SWITCH TO STAY OR STICK IN A PUSHED POSITION 
    1. Inspect the A/C Heater Control for anything that would cause the A/C mode switch to stay or stick in a pushed position.

      Is anything present that would cause the A/C mode switch to stay or stick in a pushed position?

      Yes 

      No 

      • Go to step  4
  4. CHECK THE A/C MODE SWITCH AND STATUS INDICATOR FUNCTION 
    1. Start the engine.
    2. Turn the blower control on.
    3. Press the A/C mode switch on and off several times while observing the A/C status indicator.

      Does the A/C status indicator turn on and off?

      Yes 

      • Go to step  5

      No 

  5. VERIFY THAT DTC B10C1-A/C SELECT SWITCH STUCK IS STILL ACTIVE 
    1. Turn the ignition on.
    2. With the scan tool, erase CCN DTCs.
    3. Turn the ignition off, wait 10 seconds, and turn the ignition on.
    4. With the scan tool, read CCN DTCs.

      Does the scan tool display active: B10C1-A/C SELECT SWITCH STUCK?

      Yes 

      No 

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