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 10 seconds, then cycle the ignition on.
4. If possible, operate the liftgate several times.
5. With the scan tool, read the Active DTCs.
  Does the scan tool display; B1952-00-POWER LIFTGATE DRIVE MOTOR - INCORRECT DIRECTION?
  
  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 .
(Q88) LIFTGATE OPEN DRIVER CIRCUIT AND THE (Q89) LIFTGATE CLOSE DRIVER CIRCUITS ARE CROSSED

Fig 1: Checking Liftgate Open Driver Circuit & Liftgate Close Driver Circuits Are Crossed
Courtesy of CHRYSLER GROUP, LLC
1. Cycle the ignition off.
2. Disconnect the Power Liftgate Module C1 harness connector.
3. Disconnect the Power Liftgate Drive Unit harness connector.
4. Inspect the Power Liftgate Drive Unit and Power Liftgate Module connectors, terminals and harness for damaged or pushed out terminals, or pinched/broken wires. Repair any obvious problems.
5. Trace the (Q88) Liftgate Open Driver circuit and the (Q89) Liftgate Close Driver circuits between the PLG C1 harness connector and the Drive Unit harness connector.
  NOTE:
  In the graphic, the Open Driver is shown as (+) and the Close Driver is shown as (-).
  
  Are the circuits crossed at either connector?
  
  Yes
  - Correct the wiring as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
(Q204) LIFTGATE POSITION SENSOR 1 SIGNAL AND THE (Q205) LIFTGATE POSITION SENSOR 2 SIGNAL CIRCUITS ARE CROSSED

Fig 2: Checking Liftgate Position Sensor 1 Signal & Liftgate Position Sensor 2 Signal Circuits Are Crossed
Courtesy of CHRYSLER GROUP, LLC
1. Inspect the Power Liftgate Drive Unit and Power Liftgate Module connectors, terminals and harness for damaged or pushed out terminals, or pinched/broken wires. Repair any obvious problems.
2. Trace the (Q204) Liftgate Position Sensor 1 Signal circuit and the (Q205) Liftgate Position Sensor 2 Signal circuits between the Power Liftgate Module C1 harness connector and the Power Liftgate Drive Unit harness connector.
  NOTE:
  In the graphic, the Sensor 1 Signal is shown as (+) and the Sensor 2 Signal is shown as (-).
  
  Are the circuits crossed at either connector?
  
  Yes
  - Correct the wiring as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Power Liftgate Drive Unit in accordance with the Service Information. Refer to DRIVE UNIT, POWER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .