Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC)
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Press and release the Liftgate Release Switch.
4. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 2
  No
  - Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (P31) DECKLID/LIFTGATE RELEASE DRIVER CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Disconnect the BCM F harness connector.
3. Disconnect the Liftgate Latch harness connector.
4. Measure the resistance of the (P31) Decklid/Liftgate Release Driver circuit between the BCM F harness connector and the Liftgate Latch harness connector.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Go To 3
  No
  - Repair the open in the (P31) Decklid/Liftgate Release Driver circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE BCM FOR CORRECT OPERATION
1. Reconnect the BCM F harness connector.
2. Turn the ignition on.
3. Connect a 12 - volt test light between the (P31) Decklid/Liftgate Release Driver circuit at the Liftgate Latch harness connector.
4. Press and release the Liftgate Release Switch.
  Does the test light illuminate when the Liftgate Release Switch is pressed?
  
  Yes
  - Replace the Liftgate Latch in accordance with the Service Information. Refer to LIFTGATE LATCH, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Body Control Module (BCM) in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .