Diagnostic Test

WARNING: This page is about a different car, the 2011 Dodge Grand Caravan and 2011 Chrysler Town & Country. 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. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. If possible, operate the liftgate several times.
5. With the scan tool, read the DTCs.
  Does the scan tool display B188F-POWER LIFTGATE CONTROL CIRCUIT 1 OPEN?
  
  Yes
  - Go To 2.
  No
  - Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
  - Perform the BODY VERIFICATION TEST. Refer to TOTALLY INTEGRATED POWER MODULE (TIPM) - BODY VERIFICATION TEST .
POWER LIFTGATE MODULE

Fig 1: Checking Power Liftgate Module
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Power Liftgate Module C1 harness connector.
3. Measure the resistance between the (Q88) Liftgate Open Driver circuit and the (Q89) Liftgate Close Driver circuit.
  Is the resistance approximately 4.3 Ohms?
  
  No
  - Go To 3.
  Yes
  - Replace the Power Liftgate Module in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to TOTALLY INTEGRATED POWER MODULE (TIPM) - BODY VERIFICATION TEST .
(Q88) LIFTGATE OPEN DRIVER CIRCUIT OPEN

Fig 2: Checking Liftgate Open Driver Circuit For Open
Courtesy of CHRYSLER LLC
1. Disconnect the Power Liftgate Drive Unit harness connector.
2. Measure the resistance of the (Q88) Liftgate Open Driver circuit between the PLG C1 connector and the PLG Drive Unit connector.
  Is the resistance below 5.0 Ohms?
  
  No
  - Repair the (Q88) Liftgate Open Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to TOTALLY INTEGRATED POWER MODULE (TIPM) - BODY VERIFICATION TEST .
  Yes
  - Go To 4.
(Q89) LIFTGATE CLOSE DRIVER CIRCUIT OPEN

Fig 3: Checking Liftgate Close Driver Circuit For Open
Courtesy of CHRYSLER LLC
1. Measure the resistance of the (Q89) Liftgate Close Driver circuit between the PLG C1 connector and the PLG Drive Unit connector.
  Is the resistance below 5.0 Ohms?
  
  No
  - Repair the (Q89) Liftgate Close Driver circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to TOTALLY INTEGRATED POWER MODULE (TIPM) - BODY VERIFICATION TEST .
  Yes
  - Replace the Power Liftgate Drive Unit in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to TOTALLY INTEGRATED POWER MODULE (TIPM) - BODY VERIFICATION TEST .