Right Rear Door Ajar Message on even when door is closed?

[OffBrandCornDog]

I have a 2004 Yukon Denali, and for the past 8 months or so, even when i know the door is closed all the way, a message appears on my dash saying that the door is open. I'm assuming that a wire is clogged with dirt or is maybe loose, but I'm confused on where to start. I've heard some people say it could be the body control module but id like to not replace that if i don't have too. the speakers work just fine, the door handle works, and the window regulator works just fine, the only thing that I've noticed is that it says the door is open when its not, it even locks when i press the lock on my key fob, or the driver door control panel. just wondering if anyone has had the same experience. Thanks so much in advance!

 

[OR VietVet]

I would suspect the door latch itself.

Open the door and lock the latch at the door and play with it and see if the light goes out or open the door panel and inspect to see if a wire or connection is damaged.

 

[Joseph Garcia]

I don't know the source of how/where the truck gets its door closed confirmation. Is there possibly a push button contact within the door well somewhere that needs to be pushed in fully by the closed door to confirm a door closure. I know on my '97, there were push buttons for the front doors for that purpose.

 

[915_Tahoe]

I have a 2004 Yukon Denali, and for the past 8 months or so, even when i know the door is closed all the way, a message appears on my dash saying that the door is open. I'm assuming that a wire is clogged with dirt or is maybe loose, but I'm confused on where to start. I've heard some people say it could be the body control module but id like to not replace that if i don't have too. the speakers work just fine, the door handle works, and the window regulator works just fine, the only thing that I've noticed is that it says the door is open when its not, it even locks when i press the lock on my key fob, or the driver door control panel. just wondering if anyone has had the same experience. Thanks so much in advance!

The ajar switch is part of the door latch, will have to replace the whole assembly.

 

[OR VietVet]

The ajar switch is part of the door latch, will have to replace the whole assembly.

I tried to look up the door latch at RA and did not see one. Only saw an actuator. Do you have a part number for the front/rear/left/right?

Likely also depends on many options too.

 

[Joseph Garcia]

The ajar switch is part of the door latch, will have to replace the whole assembly.

OK, @OffBrandCornDog, @915_Tahoe knows this stuff cold.

From GMPartsDirect.com, I this:

Passenger Side Rear Door Latch​

Part Number: 15110650

GM
Positions: Center right
Other Names: Door Latch Assembly
Replaces: 15068503, 15761420, 16637324
Description: Silverado, sierra. Left. Without power locks. Suburban, Yukon XL. Right. Tahoe, Yukon. Avalanche. Escalade, Escalade EXT/esv. CREW CAB.... (...)
MSRP $348.25
$231.82

 

[Fless]

Rock Auto has them (depending on Anti-Theft or not) in both the Economy (not shown below) and Daily Driver sections:

 

[Fless]

Also not sure if you feel like doing some diag, the link below might help (when you get to it re-select your model if I didn't get it right):

https://charm.li/GMC/2004/Yukon%2FDenali%202WD%20V8-5.3L%20VIN%20T/Repair%20and%20Diagnosis/#Body%20and%20Frame/Doors%2C%20Hood%20and%20Trunk/Doors/Testing%20and%20Inspection/

 

[OR VietVet]

Rock Auto has them (depending on Anti-Theft or not) in both the Economy (not shown below) and Daily Driver sections:

View attachment 469565

I did not see the actuator/latch combination. Oh well.

 

[OffBrandCornDog]

I would suspect the door latch itself.

Open the door and lock the latch at the door and play with it and see if the light goes out or open the door panel and inspect to see if a wire or connection is damaged.

so when the door is open i use a pencil to mess with the latch and it does seem to close and stay closed, they also close and lock when i lock the doors, and stay closed. but the message doesnt go away, there was one time a friend closed it and it went off for a couple days, and then it came back on so im hoping its a bad wire that just needs a cleaning, ill spray some cleaner after disconnecting the battery.

 

[Joseph Garcia]

so when the door is open i use a pencil to mess with the latch and it does seem to close and stay closed, they also close and lock when i lock the doors, and stay closed. but the message doesnt go away, there was one time a friend closed it and it went off for a couple days, and then it came back on so im hoping its a bad wire that just needs a cleaning, ill spray some cleaner after disconnecting the battery.

It certainly can't hurt. Clean up all electrical connectors, WD-40 the mechanical components.

 

[clogan2]

I've always been amazed how often a repair is accomplished simply by disassembly, cleaning, and reassembly.

 

[Crawfish00]

It’s usually just the contact or the solenoid. Don’t buy the whole latch. Had to replace them in my 2500hd’s also I’d buy oem. I bought some knock off ones and had issues not to long after replacement.