B1982

B1982-POWER LIFTGATE LATCH CONTROL 1 CIRCUIT OPEN





For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Anytime the Power Liftgate is in a power cinching or releasing operation.

- Set Condition:
When the Power Liftgate Module detects an open between the latch motor outputs.





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 B1982-POWER LIFTGATE LATCH CONTROL 1 CIRCUIT OPEN?

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 in the latch assembly.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

2. LIFTGATE LATCH CIRCUIT OPEN




Turn the ignition off.
Disconnect the Power Liftgate Module C2 connector.
Measure the resistance between the (Q84) Liftgate Latch Cinch Driver circuit and the (Q85) Liftgate Latch Release Driver Circuit.
Is the resistance approximately 4.0 ohms?

No

- Go To 3

Yes

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

3. (Q84) LIFTGATE LATCH CINCH DRIVER CIRCUIT OPEN




Disconnect the Liftgate Cinch/Release Motor harness connector.
Measure the resistance of the (Q84) Liftgate Latch Cinch Driver circuit between the PLG C2 connector and the Cinch/Release Motor connector.
Is the resistance below 2.0 ohms?

Yes

- Go To 4

No

- Repair the (Q84) Liftgate Latch Cinch Driver circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

4. (Q85) LIFTGATE LATCH RELEASE DRIVER CIRCUIT OPEN




Measure the resistance of the (Q85) Liftgate Latch Release Driver circuit between the PLG Module C2 harness connector and the Power Liftgate Latch harness connector.
Is the resistance below 2.0 ohms?

Yes

- Go To 5

No

- Repair the (Q85) Liftgate Latch Release Driver circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

5. (Q83) LIFTGATE LATCH CLUTCH DRIVER CIRCUIT OPEN




Measure the resistance of the (Q83) Liftgate Latch Clutch Driver circuit between the PLG Module C2 harness connector and the Liftgate Cinch/Release Motor harness connector.
Is the resistance below 2.0 ohms?

Yes

- Go To 6

No

- Repair the (Q83) Liftgate Latch Clutch Driver circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

6. (Z245) GROUND CIRCUIT OPEN




Turn the ignition off.
Measure the resistance between ground and the (Z245) Ground circuit.
Is the resistance below 5.0 ohms?

No

- Repair the (Z245) Ground circuit for an open.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test

Yes

- Replace the Liftgate Cinch/Release Motor Assembly.
- PERFORM BODY VERIFICATION TEST - VER 1. Body Verification Test