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GMC Yukon Rear Door Ajar Warning Message
Previous research has indicated this is most likely due to a faulty door lock actuator switch. This was from a posting on a different site: "The 'Door Ajar' switches are located on the latches inside the door. the most common failure in this system is the micro-switch on the latch. on most models you can replace the door lock actuator (ajar switch is part of this actuator) and the issue should be resolved.
You could remove the door panel and inspect the wiring inside the door to make sure it is intact... and at the same time you could use a jumper to connect the 2 wires of the door jamb switch and confirm that the light goes out."
So I bought a new door lock actuator switch and removed the door panel. My problem is that I don't see anything in the door inner that remotely resembles the replacement actuator switch in hand.
The only area of the door inner that I haven't searched visually is where the door latch mechanism is bolted to the door fenderwell panel. This is because it is not possible to see in there due to metal concealing that area. Before I blindly unscrew the door latching mechanism, two questions:
1) is that were the door lock actuator is located?
2) is there a preferred procedure for disconnecting these parts and reattaching them. (My plan is to just unscrew the screws that are on the exterior of the door fenderwell panel and hope that the latch mechanism inside the door will be freed. I assume the actuator will be connected to the latch mechanism somehow.
Since it's all blind work, any assistance in disassembly instruction would be sincerely appreciated.