B1958

B1958-POWER LIFTGATE DRIVE CLUTCH CONTROL CIRCUIT LOW





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
Whenever the Power Liftgate is power opening or closing.

- Set Condition:
The power liftgate module has detected the clutch driver circuit current is over five amps.





1. DIAGNOSTIC TROUBLE CODE (DTC) PRESENT
1. Using the scan tool, record DTCs and any liftgate inhibitors.
2. Erase DTCs.
3. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. Operate the liftgate several times.
5. Using the scan tool, read DTCs.

Does the scan tool display B1958-POWER LIFTGATE DRIVE CLUTCH CONTROL CIRCUIT LOW?

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. Body Verification Test.

2. POWER LIFTGATE DRIVE UNIT




1. Disconnect the Power Liftgate Drive Unit harness connector.
2. Erase DTCs.
3. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. Using the scan tool, read DTCs.

Does the scan tool display B1958-POWER LIFTGATE DRIVE CLUTCH CONTROL CIRCUIT LOW?

Yes

- Go To 3

No

- Replace the Power Liftgate Drive Unit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. (Q201) LIFTGATE CLUTCH DRIVER CIRCUIT SHORTED TO GROUND




1. Turn the ignition off.
2. Disconnect the Power Liftgate Module C1 harness connector.
3. Measure the resistance between ground and the (Q201) Liftgate Clutch Driver circuit.

Is the resistance below 10000.0 Ohms?

Yes

- Repair the (Q201) Liftgate Clutch Driver circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Power Liftgate Module.
- Perform the BODY VERIFICATION TEST. Body Verification Test.