Diagnostic Test

RUN THE ACTUATOR CIRCUIT TEST / DOOR CALIBRATION FUNCTION AND THEN CHECK FOR ACTUATOR CIRCUIT TEST FAULTS
NOTE: Diagnose and repair Actuator Circuit Test faults (DTC 61, 62, 63, 64, 67, 68, 69, 71, and 72) before diagnosing Overcurrent faults (DTC 41, 43, and 44).
1. Turn the ignition on.
2. Actuate the Clear DTC function by performing the following:
  - Turn the blower control on.
  - Press the A/C mode switch down, turn the blower control to off, wait until both LEDs illuminate (approximately 5 seconds) and then release the A/C mode switch.
  - When the A/C status indicator begins displaying DTCs, set the Mode switch to the floor position, simultaneously press the A/C mode switch and the EBL mode switch down until both LEDs start flashing (approximately 5 seconds) and then release the mode switches. Stored DTCs will clear from memory in approximately two seconds.
3. Turn the ignition off, wait 10 seconds, and turn the ignition on.
4. Actuate the Actuator Circuit Test / Door Calibration Function by performing the following:
  - Turn the blower control off.
  - Press and hold the EBL mode switch down and then turn the blower control on. Continue to hold the EBL mode switch down until the EBL status indicator begins flashing. Then, release the EBL mode switch. While the test / function is running, the EBL status indicator will flash once per second. If the test / function passes, the EBL status indicator will stop flashing. If the test / function fails, the A/C and EBL status indicators will flash alternately. Allow the test / function to run to completion before proceeding.
5. Actuate the Display DTC function by performing the following:
  - Turn the blower control on.
  - Press the A/C mode switch down, turn the blower control to off, wait until both LEDs illuminate (approximately 5 seconds) and then release the A/C mode switch.
  NOTE: The A/C status indicator displays active DTCs when the EBL status indictor is not illuminated and stored DTCs when the EBL status indicator is illuminated.
6. Read DTCs from the A/C status indictor.
  Does the A/C status indicator display any of the following DTCs: 61, 62, 63, 64, 67, 68, 69, 71, or 72?
  
  Yes
  - As present, diagnose and repair the Actuator Circuit Test faults in the following order: DTC 72 first, then DTC 62, then DTC 61, then DTCs 64, 68, or 71, and finally DTCs 63, 67, or 69.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go To step 2
CHECK THE (C266) MODE DOOR DRIVER CIRCUIT FOR A SHORT TO THE (C255) LEFT BLEND DOOR DRIVER CIRCUIT, (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT, (C268) RECIRCULATION DOOR DRIVER CIRCUIT, AND THE (C68) RECIRCULATION DOOR COMMON DRIVER CIRCUIT

Fig 1: Checking Mode Door Driver Circuit For A Short To Left Blend Door Driver Circuit, Left Blend Door Common Driver Circuit, Recirculation Door Driver Circuit & Recirculation Door Common Driver Circuit
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 (C266) Mode Door Driver circuit and the (C255) Left Blend Door Driver circuit, (C55) Left Blend Door Common Driver circuit, (C268) Recirculation Door Driver circuit, and the (C68) Recirculation Door Common Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 10k ohms on any of the circuits?
  
  Yes
  - Repair all circuits with a resistance below 10k ohms for a short to the (C266) Mode Door Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go To step 3
CHECK THE (C66) MODE DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C255) LEFT BLEND DOOR DRIVER CIRCUIT, (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT, (C268) RECIRCULATION DOOR DRIVER CIRCUIT, AND THE (C68) RECIRCULATION DOOR COMMON DRIVER CIRCUIT

Fig 2: Checking Mode Door Common Driver Circuit For A Short To Left Blend Door Driver Circuit, Left Blend Door Common Driver Circuit, Recirculation Door Driver Circuit & Recirculation Door Common Driver Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (C66) Mode Door Common Driver circuit and the (C255) Left Blend Door Driver circuit, (C55) Left Blend Door Common Driver circuit, (C268) Recirculation Door Driver circuit, and the (C68) Recirculation Door Common Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 10k ohms on any of the circuits?
  
  Yes
  - Repair all circuits with a resistance below 10k ohms for a short to the (C66) Mode Door Common Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go To step 4
CHECK THE (C255) LEFT BLEND DOOR DRIVER CIRCUIT FOR A SHORT TO THE (C268) RECIRCULATION DOOR DRIVER CIRCUIT AND THE (C68) RECIRCULATION DOOR COMMON DRIVER CIRCUIT

Fig 3: Checking Left Blend Door Driver Circuit For A Short To Recirculation Door Driver Circuit & Recirculation Door Common Driver Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (C255) Left Blend Door Driver circuit and the (C268) Recirculation Door Driver circuit and the (C68) Recirculation Door Common Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 10k ohms on any of the circuits?
  
  Yes
  - Repair all circuits with a resistance below 10k ohms for a short to the (C255) Left Blend Door Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go To step 5
CHECK THE (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C268) RECIRCULATION DOOR DRIVER CIRCUIT AND THE (C68) RECIRCULATION DOOR COMMON DRIVER CIRCUIT

Fig 4: Checking Left Blend Door Common Driver Circuit For A Short To Recirculation Door Driver Circuit & Recirculation Door Common Driver Circuit
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (C55) Left Blend Door Common Driver circuit and the (C268) Recirculation Door Driver circuit and the (C68) Recirculation Door Common Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 10k ohms on any of the circuits?
  
  Yes
  - Repair all circuits with a resistance below 10k ohms for a short to the (C55) Left Blend Door Common Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Go To step 6
CHECK THE MODE DOOR ACTUATOR CIRCUIT RESISTANCE

Fig 5: Checking Mode Door Actuator Circuit Resistance
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (C66) Mode Door Common Driver Circuit and the (C266) Mode Door Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 30.0 ohms?
  
  Yes
  - Go To step 7
  No
  - Go To step 8
CHECK THE (C66) MODE DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C266) MODE DOOR DRIVER CIRCUIT

Fig 6: Checking Mode Door Actuator Circuit Resistance
Courtesy of CHRYSLER LLC
1. Disconnect the Mode Door Actuator harness connector.
2. Measure the resistance between the (C66) Mode Door Common Driver Circuit and the (C266) Mode Door Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 10k ohms?
  
  Yes
  - Repair the (C66) Mode Door Common Driver Circuit for a short to the (C266) Mode Door Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Replace the Mode 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
CHECK THE LEFT BLEND DOOR ACTUATOR CIRCUIT RESISTANCE

Fig 7: Checking Left Blend Door Actuator Circuit Resistance
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (C55) Left Blend Door Common Driver Circuit and the (C255) Left Blend Door Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 30.0 ohms?
  
  Yes
  - Go To step 9
  No
  - Go To step 10
CHECK THE (C55) LEFT BLEND DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C255) LEFT BLEND DOOR DRIVER CIRCUIT

Fig 8: Checking Left Blend Door Actuator Circuit Resistance
Courtesy of CHRYSLER LLC
1. Disconnect the Left Blend Door Actuator harness connector.
2. Measure the resistance between the (C55) Left Blend Door Common Driver Circuit and the (C255) Left Blend Door Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 10k ohms?
  
  Yes
  - Repair the (C55) Left Blend Door Common Driver Circuit for a short to the (C255) Left Blend Door Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - 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
CHECK THE RECIRCULATION DOOR ACTUATOR CIRCUIT RESISTANCE

Fig 9: Checking Recirculation Door Actuator Circuit Resistance
Courtesy of CHRYSLER LLC
1. Measure the resistance between the (C68) Recirculation Door Common Driver Circuit and the (C268) Recirculation Door Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 30.0 ohms?
  
  Yes
  - Go To step 11
  No
  - Go to step 12
CHECK THE (C68) RECIRCULATION DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO THE (C268) RECIRCULATION DOOR DRIVER CIRCUIT

Fig 10: Checking Recirculation Door Actuator Circuit Resistance
Courtesy of CHRYSLER LLC
1. Disconnect the Recirculation Door Actuator harness connector.
2. Measure the resistance between the (C68) Recirculation Door Common Driver Circuit and the (C268) Recirculation Door Driver circuit in the A/C Heater Control C2 harness connector.
  Is the resistance below 10k ohms?
  
  Yes
  - Repair the (C68) Recirculation Door Common Driver Circuit for a short to the (C268) Recirculation Door Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure
  No
  - Replace the Recirculation 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
VERIFY THAT THE FAULT IS STILL PRESENT
1. Reconnect the A/C Heater Control C2 harness connector.
2. Reconnect all of the door actuator harness connectors.
3. Turn the ignition on.
4. Actuate the Clear DTC function by performing the following:
  - Turn the blower control on.
  - Press the A/C mode switch down, turn the blower control to off, wait until both LEDs illuminate (approximately 5 seconds) and then release the A/C mode switch.
  - When the A/C status indicator begins displaying DTCs, set the Mode switch to the floor position, simultaneously press the A/C mode switch and the EBL mode switch down until both LEDs start flashing (approximately 5 seconds) and then release the mode switches. Stored DTCs will clear from memory in approximately two seconds.
5. Turn the ignition off, wait 10 seconds, and turn the ignition on.
6. Actuate the Actuator Circuit Test / Door Calibration Function by performing the following:
  - Turn the blower control off.
  - Press and hold the EBL mode switch down and then turn the blower control on. Continue to hold the EBL mode switch down until the EBL status indicator begins flashing. Then, release the EBL mode switch. While the test / function is running, the EBL status indicator will flash once per second. If the test / function passes, the EBL status indicator will stop flashing. If the test / function fails, the A/C and EBL status indicators will flash alternately. Allow the test / function to run to completion before proceeding.
7. Actuate the Display DTC function by performing the following:
  - Turn the blower control on.
  - Press the A/C mode switch down, turn the blower control to off, wait until both LEDs illuminate (approximately 5 seconds) and then release the A/C mode switch.
  NOTE: The A/C status indicator displays active DTCs when the EBL status indictor is not illuminated and stored DTCs when the EBL status indicator is illuminated.
8. Read DTCs from the A/C status indictor.
  Does the A/C status indicator display DTC 41?
  
  Yes
  - 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
  No
  - Using the wiring diagram as a guide, inspect the wiring and connectors for conditions causing an intermittent short that set the original fault. Repair as necessary. Then, if present, diagnose and repair all other DTCs.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure