B1963

B1963-00-POWER LIFTGATE STRUT PERFORMANCE





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

Theory of Operation

This DTC is designed to detect a failed gas prop which will cause the liftgate to free fall at the top of an open cycle. This is accomplished by the liftgate position sensors 1 and 2 transmitting that information to the power liftgate module. This DTC can also be set by the operator pulling on the opened liftgate and closing it down to quickly (less than one second).

- When Monitored:
One second after the liftgate completes a power opening operation.

- Set Condition:
If the liftgate starts to drop after a complete opening operation, the Power Liftgate Module will set this code.





1. DTC PRESENT
1. With the scan tool, record the PLG 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 to the full up position and wait 30 seconds.
5. Close the liftgate and repeat the previous step.
6. With the scan tool, read the Active DTCs.

Does the scan tool display; B1963-00-POWER LIFTGATE STRUT PERFORMANCE?

Yes

- Go To 2

No

- Make sure there is no intermittent binding or cold weather condition which may have caused this code to set.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. WEAK STRUT
1. Manually open the liftgate to approximately 1/4 open position.
2. Let go of the liftgate and see if it will slam shut.
3. If necessary, compare the effort to open and close the liftgate with a known good vehicle.

NOTE: At this point the liftgate should hold in this position but it may slip down very slowly which is passable.

Does the liftgate hold in position or lower very slowly?

Yes

- Go To 3

No

- Replace the Liftgate Gas Prop (strut). Gas Prop - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

3. WEAK STRUT
1. Manually open the liftgate to the full open position.
2. Leave go of the liftgate and see if it will stay in the full up position.

Does the liftgate stay in the full up position as it should?

Yes

- No trouble found at this time. If this vehicle continues to set this DTC, replace the Liftgate Gas Prop (strut). Gas Prop - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Replace the Liftgate Gas Prop (strut). Gas Prop - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.