B1886-11

B1886-11-LIFTGATE PINCH SENSOR - 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 Left Liftgate Pinch Sensor circuit voltage is under 0.5 of a volt for over 20 seconds.





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

Does the scan tool display; B1886-11-LIFTGATE PINCH SENSOR - 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 correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. LEFT PINCH SENSOR SHORTED




1. Disconnect the Left Liftgate Pinch Sensor harness connector.
2. Erase the DTCs.
3. Turn the ignition off, wait 20 seconds, then turn the ignition on.
4. With the scan tool, read the Active DTCs.

Does the scan tool display; B1886-11-LIFTGATE PINCH SENSOR - CIRCUIT SHORT TO GROUND?

Yes

- Go To 3

No

- Replace the Left Liftgate Pinch Sensor. Pinch Sensor - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. CHECK THE (Q75) LEFT PINCH SENSOR SIGNAL FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the Power Liftgate Module C2 harness connector.
3. Measure the resistance between ground and the (Q75) Left Pinch Sensor Signal harness circuit.

Is the resistance below 7K Ohms?

Yes

- Repair the (Q75) Left Pinch Sensor Signal circuit for a short to ground.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 4

4. CHECK THE (Q75) LEFT PINCH SENSOR SIGNAL FOR A SHORT TO THE (Q901) LOGIC GROUND CIRCUIT




1. Measure the resistance between the (Q75) Left Pinch Sensor Signal circuit and the (Q901) Logic Ground circuit.

Is the resistance below 7K Ohms?

Yes

- Repair the (Q75) Left Pinch Sensor Signal circuit for a short to the (Q901) Logic Ground circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

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