B1888-POWER LIFTGATE PINCH SENSOR 1 CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W
- 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 volts for over 20 seconds.
| Possible Causes |
| (Q75) LEFT PINCH SENSOR SIGNAL CIRCUIT SHORT TO GROUND |
| (Q75) LEFT PINCH SENSOR SIGNAL CIRCUIT SHORT TO (Q901) LOGIC GROUND CIRCUIT |
| LEFT LIFTGATE PINCH SENSOR |
| POWER LIFTGATE MODULE |
Diagnostic Test
1. DTC PRESENTWith the scan tool, record DTC's and any liftgate inhibitors.
Erase DTCs.
Turn the ignition off, wait 10 seconds, then turn the ignition on.
Operate the liftgate several times.
With the scan tool, read 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 BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
2. LEFT PINCH SENSOR SHORTED
Disconnect the Left Liftgate Pinch Sensor harness connector
Erase DTCs
Turn the ignition off, wait 10 seconds, then turn the ignition on.
With the scan tool, read DTCs.
Does the scan tool display B1888–POWER LIFTGATE PINCH SENSOR 1 CIRCUIT LOW?
Yes
- Go To3
No
- Replace the Left Liftgate Pinch Sensor in accordance with the service information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
3. CHECK THE (Q75) LEFT PINCH SENSOR SIGNAL FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the Power Liftgate Module C2 harness connector.
Measure the resistance between ground and the (Q75) Left Pinch Sensor Signal harness circuit.
Is the resistance below 10000.0 ohms?
No
- Replace the Power Liftgate Module in accordance with the service information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
Yes
- Repair the (Q75) Left Pinch Sensor Signal circuit for a short to ground.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).