Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, create a Vehicle Scan Report and attach it to the repair order.
3. Erase the DTCs.
4. Turn the ignition off, wait 10 seconds, then turn the ignition on.
5. Operate the power liftgate several times if possible.
6. With the scan tool, read the PLGM DTCs.
  Is the DTC active?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK FOR A BINDING LIFTGATE
1. Examine the liftgate for proper alignment, worn or binding hinges, stiff liftgate prop assembly, or loose/hard weatherstrip or anything that would cause an obstruction to proper operation.
2. If necessary manually operate the liftgate of a known good vehicle and notice the effort needed.
3. Compare the effort needed on the disabled vehicle.
  Were there any mechanical problems found?
  
  Yes
  - Refer to STANDARD PROCEDURE for the related symptom(s).
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE POWER LIFTGATE MODULE
NOTE:
The Vehicle Scan Report will show the part number for the Power Liftgate Module (PLGM).
1. Verify the correct PLGM is installed by comparing the information from the Vehicle Scan Report and Star Parts.
  Is the correct PLGM installed?
  
  Yes
  - Replace the Power Liftgate Drive Unit in accordance with the Service Information. Refer to DRIVE UNIT, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Power Liftgate Module (PLGM) accordance with the Service Information. Refer to MODULE, POWER LIFTGATE (PLGM), REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  Test Complete.