B1888

B1888-POWER LIFTGATE PINCH SENSOR 1 CIRCUIT LOW







- 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 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 DTCs.

Does the scan tool display B1888-POWER LIFTGATE PINCH SENSOR 1 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. LEFT PINCH SENSOR SHORTED




1. Disconnect the Left Liftgate Pinch Sensor harness connector
2. Erase the DTCs.
3. Turn the ignition off, wait 10 seconds, then turn the ignition on.
4. With the scan tool, read the DTCs.

Does the scan tool display B1888-POWER LIFTGATE PINCH SENSOR 1 CIRCUIT LOW?

Yes

- Go To 3

No

- Replace the Left Liftgate Pinch Sensor.
- 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 10,000 Ohms?

No

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

Yes

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