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.

DTC PRESENT
1. With the scan tool, record the DTCs.
2. Erase the DTCs.
3. Cycle the ignition off, wait 15 seconds, then cycle the ignition on.
4. Operate the liftgate several times from the overhead switch.
5. With the scan tool, read the DTCs.
  Does the scan tool display; B18E1-2A-POWER LIFTGATE FRONT ZONE SWITCH - STUCK?
  
  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 .
FRONT POWER LIFTGATE SWITCH STUCK
1. Disconnect the Front Power Liftgate Switch harness connector.
2. Erase the DTCs.
3. Cycle the ignition off, wait 15 seconds, then cycle the ignition on.
4. With the scan tool, read the Active DTCs.
  Does the scan tool display; B18E1-2A-POWER LIFTGATE FRONT ZONE SWITCH - STUCK?
  
  Yes
  - Go To 3.
  No
  - Replace the Front Power Liftgate Switch (Overhead Console) in accordance with the Service Information. Refer to CONSOLE, OVERHEAD, FRONT, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
(G25) LIFTGATE RELEASE SWITCH SENSE CIRCUIT SHORTED TO GROUND

Fig 1: Checking Liftgate Switch Sense Circuit For Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Cycle the ignition off.
2. Disconnect the Power Liftgate Module C2 harness connector.
3. Measure the resistance between ground and the (G25) Liftgate Release Switch Sense circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (G25) Liftgate Release Switch Sense circuit for a partial short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Power Liftgate Module in accordance with the Service Information. Refer to MODULE, POWER LIFTGATE CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .