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 and erase the DTCs.
2. Cycle the ignition off, wait 10 seconds, then cycle the ignition on.
3. Operate the liftgate several times from the rear switch.
4. With the scan tool, read the Active DTCs.
  Does the scan tool display; B1949-2A-POWER LIFTGATE REAR 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 poor pin fit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
LIFTGATE REAR SWITCH SHORTED

Fig 1: Checking Liftgate Rear Switch For Short
Courtesy of CHRYSLER GROUP, LLC
1. Disconnect the Power Liftgate Rear Switch 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; B1949-2A-POWER LIFTGATE REAR ZONE SWITCH - STUCK?
  
  Yes
  - Go To 3.
  No
  - Replace the Liftgate Rear Switch in accordance with the Service Information. Refer to SWITCH, D-PILLAR, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
(G29 LIFTGATE SWITCH SIGNAL CIRCUIT SHORTED TO GROUND

Fig 2: Checking Liftgate Switch Signal 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 (G29) Liftgate Switch Signal circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (G29) Liftgate Switch Signal circuit for a 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 .