Diagnostic Test

CHECK FOR ACTIVE CONTROL CIRCUIT/PERFORMANCE DTCs
1. Turn the ignition on.
2. With the scan tool, read active HVAC DTCs.
  Does the scan tool display any active: XXXX CONTROL CIRCUIT/PERFORMANCE DTCs?
  
  Yes
  - Diagnose and repair the DTCs.
  No
  - Go to step 2
CHECK THE LEFT BLEND DOOR ACTUATOR CIRCUIT RESISTANCE

Fig 1: Checking Left Blend Door Actuator Circuit Resistance
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the A/C Heater Control C2 harness connector.
3. Measure the resistance between the (C255) Left Blend Door Driver circuit and the (C55) Left Blend Door Common Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance above 70.0 ohms?
  
  Yes
  - Go to step 3
  No
  - Replace the A/C Heater Control in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
CHECK THE (C255) LEFT BLEND DOOR DRIVER CIRCUIT FOR AN OPEN

Fig 2: Checking Left Blend Door Driver Circuit For An Open
Courtesy of CHRYSLER LLC
1. Disconnect the Left Blend Door Actuator harness connector.
2. Measure the resistance of the (C255) Left Blend Door Driver circuit between the Left Blend Door Actuator harness connector and the A/C Heater Control C2 harness connector.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Go to step 4
  No
  - Repair the (C255) Left Blend Door Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
CHECK THE (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT FOR AN OPEN

Fig 3: Checking Left Blend Door Common Driver Circuit For An Open
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (C55) Left Blend Door Common Driver circuit between the Left Blend Door Actuator harness connector and the A/C Heater Control C2 harness connector.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Replace the Left Blend Door Actuator in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Repair the (C55) Left Blend Door Common Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure