B1967

B1967-POWER LIFTGATE OPEN DIRECTION OVERCURRENT





For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Anytime the Power Liftgate is in a power open operation.

- Set Condition:
The drive motor stall current of over 24 amps has been detected for over 500 ms. during the power opening operation.





Diagnostic Test

1. DTC PRESENT
With the scan tool, record and erase DTC's.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Operate the power liftgate several times if possible.
With the scan tool, read DTCs.
Does the scan tool display B1967-POWER LIFTGATE OPEN DIRECTION OVERCURRENT?

Yes

- Go To 2

No

- Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition. Operate the liftgate several times and check for any binding conditions.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

2. BINDING LIFTGATE
Examine the liftgate for proper alignment, worn or binding hinges, weak liftgate prop assembly, or loose/hard weatherstrip for wear or anything that would cause an obstruction to proper operation. Check for the possibility of the liftgate having been overloaded due to ice or heavy snow.
If necessary manually operate the liftgate of a known good vehicle and notice the effort needed.
Compare the effort needed on the disabled vehicle.
Were there any mechanical problems found?

Yes

- Repair accordingly.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 3

3. POWER LIFTGATE DRIVE UNIT HARNESS CONNECTORS
Disconnect all PLG Module, Latch and Liftgate Drive Unit harness connectors.
Inspect the PLG Module, Latch and Liftgate Drive Unit harness connectors for damaged, loose or pushed out pins, corrosion, or pinched/damaged wires.
Were any problems found?

Yes

- Repair as necessary.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 4

4. POWER LIFTGATE DRIVE UNIT
Reconnect all PLG Module, Latch and Liftgate Drive Unit at this time.
Operate the Power Liftgate in both directions if possible.
Does the motor start to lift the liftgate but is very slow and labors extensively?

Yes

- Replace the Power Liftgate Drive Unit assembly.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Power Liftgate Module.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test