Rear Doors Will Not Unlock / Battery Draw - keywords inoperative liftgate lock power sticking
| Subject: | Rear Doors Will Not Unlock / Battery Draw |
| Models: | 2007 Cadillac Escalade, ESV, EXT |
| 2007 Chevrolet Avalanche, Silverado, Suburban, Tahoe |
| 2007 GMC Sierra, Yukon, Yukon Denali, Yukon XL, Yukon Denali XL |
This PI was superseded to update models. Please discard PIT3984.
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
Some customers may experience a concern where the rear power door locks will not unlock. After initial inspection, you will notice that there is power going to the rear power door lock actuator circuits (circuit 295) at all times. The customer may also state that the battery goes dead at times.
Recommendation/Instructions:
If you experience this concern, check the rear door lock relay for a sticking condition. If the relay is stuck in the lock position, replace the left IP fuse box. The rear power door lock relay is internal to the left IP fuse block and can't be replaced separately.
Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
