Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.

CHECK IF DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, read HVAC DTC's.
  Is this DTC active?
  
  Yes
  - Go To 3.
  No
  - Go To 2.
PERFORM HVAC ACTUATOR CALIBRATION TEST
1. With the scan tool, perform the HVAC Actuator Calibration Test.
  Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test?
  
  Yes
  - Go To 3.
  No
  - Go To 9.
CHECK THE (C32) RECIRCULATION DOOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE

Fig 1: Checking Recirculation Door Driver Circuit For A Short To Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off to the lock position.
2. Disconnect the A/C Heater Control C1 harness connector.
3. Disconnect the Recirculation Door Actuator harness connector.
4. Ignition on, engine not running.
5. Measure the voltage of the (C32) Recirculation Door Driver circuit.
  Is there any voltage present?
  
  Yes
  - Repair the (C32) Recirculation Door Driver circuit for a short to voltage.
  - Perform HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .
  No
  - Go To 4.
CHECK THE (C34) COMMON DOOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE

Fig 2: Checking Common Door Driver Circuit For A Short To Voltage
Courtesy of CHRYSLER GROUP, LLC
1. Measure the voltage of the (C34) Common Door Driver circuit.
  Is there any voltage present?
  
  Yes
  - Repair the (C34) Common Door Driver circuit for a short to voltage.
  - Perform HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .
  No
  - Go To 5.
CHECK THE (C32) RECIRCULATION DOOR DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 3: Checking Recirculation Door Driver Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off to the lock position.
2. Measure the resistance between ground and the (C32) Recirculation Door Driver circuit.
  Is the resistance below 100k Ohms?
  
  Yes
  - Repair the (C32) Recirculation Door Driver circuit for a short to ground.
  - Perform HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .
  No
  - Go To 6.
CHECK THE (C34) COMMON DOOR DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 4: Checking Common Door Driver Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (C34) Common Door Driver circuit.
  Is the resistance below 100k Ohms?
  
  Yes
  - Repair the (C34) Common Door Driver circuit for a short to ground.
  - Perform HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .
  No
  - Go To 7.
CHECK THE RECIRCULATION DOOR
1. Remove the Recirculation Door Actuator and check the Recirculation Door for binding and full travel.
  Were there any problems with the Recirculation Door movement?
  
  Yes
  - Repair or replace the Recirculation Door as necessary in accordance with the Service Information.
  - Perform HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .
  No
  - Go To 8.
CHECK THE RECIRCULATION DOOR ACTUATOR
1. Replace the Recirculation Door Actuator in accordance with the Service Information.
2. With the scan tool, erase HVAC DTC's and perform the HVAC Actuator Calibration Test.
  Did this DTC reset?
  
  Yes
  - Replace and program the A/C Heater Control in accordance with the Service Information.
  - Perform HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .
  No
  - Test complete.
  - Perform HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .
CHECK THE WIRING AND CONNECTORS
1. The conditions necessary to set the DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
3. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, partially broken wires.
4. Check the connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
5. Wiggle the wiring and connectors while checking for shorted and open circuits.
6. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set.
  Were there any problems found?
  
  Yes
  - Repair as necessary.
  - Perform HVAC VERIFICATION TEST. Refer to HVAC VERIFICATION TEST .
  No
  - Test complete.