B1964-11

B1964-11-POWER LIFTGATE SENSOR SUPPLY - CIRCUIT SHORT TO GROUND





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

- When Monitored:
Whenever the Power Liftgate Module is awake.

- Set Condition:
The Power Liftgate Module has detected the sensor supply circuit voltage is under 4.0 volts.





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

Does the scan tool display; B1964-11-POWER LIFTGATE SENSOR SUPPLY - CIRCUIT SHORT TO GROUND?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and poor pin fit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. POWER LIFTGATE DRIVE UNIT




1. Disconnect and inspect the Power Liftgate Drive Unit harness connector. Clean and repair if necessary and repeat step 1. If the connector is okay, continue testing.
2. Erase the DTCs.
3. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. With the scan tool, read the Active DTCs.

Does the scan tool display; B1964-11-POWER LIFTGATE SENSOR SUPPLY - CIRCUIT SHORT TO GROUND?

Yes

- Go To 3

No

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

3. (Q203) POSITION SENSOR SUPPLY 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 (Q203) Position Sensor Supply circuit.

Is the resistance below 10K Ohms?

Yes

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

No

- Repair the (Q203) Position Sensor Supply circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.