were is the rear door relay switch located on a 2003 yukon
What? Barn door lock on a Yukon????
2005 yukon BACK DOOR CATCH LOCK
By door sensors I think you mean the sensor that indicates the door is open, if so the sensor is on the lock itself. Please don't confuse this with the door actuator; it's a separate unit with just 2 wires on the lock assembly.
the door switches are inside the door lock its self
A new central locking pump is needed.
The door lock relays on the 2003 Yukon are located in the fuse panel. That fuse panel is located on the outside of the lower part of the dash. It can be found by opening the drivers door wide. You'll see an access panel which is easily removed revealing the fuses.
The door jamb sensors are most likely dirty, spray all sensors with wd40
Door lock actuators have fuses or sensors that may burn out over time. When troubleshooting a keyless entry system in a Pontiac Grand Am GT be sure to check the fuses for the door locks. Also check the wiring from the door locks to the cabin harness as well as the door lock actuator themselves.
you have to take off the door panel it is made of hard plastic it will have some wires going to it and will be close to your manual door lock
there is a screw clearly in back of the door handle along with a screw behind the door lock, you must remove the plastic lock switch and find the screw there. also a screw under the panel holding the door tray, but optional. then slide the door panel out upwards
You will need to go to the dealer and have the program reset. It will cost around 75.00 dollars to have this done
Hatch Lock Airlock