How common do the master window switches break? - SOLVED

[BlackYukon]

I got in my vehicle a few days ago to find that almost all of the switches on the driver door had stopped working. The only switch that works is the drivers side power window switch and the Lock/Unlock button, all the other window switches including the side view mirror adjustment switch will not work.

Has anyone seen this before? I purchased some GM replacement switches so hopefully that works and it's not something deeper like the wiring harness.

 

[Big Mama]

Pretty common over time but hard to believe someone let it go like that. Do the other windows work with their respective switches? Have you tried hooking up the other windows to the good switch to double check?

 

[BlackYukon]

Pretty common over time but hard to believe someone let it go like that. Do the other windows work with their respective switches? Have you tried hooking up the other windows to the good switch to double check?

Yeah I tested each individual door and all of their switches work. I took the driver door panel off earlier today and checked all of the master switch connections and nothing looked loose or broken so I'm not sure what to take away from that..

If the replacement switches don't work then I guess I have bigger problems.

 

[OR VietVet]

How about the inspection of the wires where they pass into the door at the door jam? They get flexed there and could have a wire problem there.

 

[BlackYukon]

How about the inspection of the wires where they pass into the door at the door jam? They get flexed there and could have a wire problem there.

I didn't go that in depth when I was looking at everything. I'll tear it apart tomorrow and look at everything a little closer.

I really love this vehicle, but GM either has some really shit quality control or just bad engineering. It feels like every time I fix one problem I run into a new one. Luckily I'm mechanically inclined and have been able to fix everything but damn.. for how much these cost I shouldn't have to do anything but basic maintenance.

 

[Big Mama]

Ron makes a good point about the door jam wiring. No need to disassemble anything for that. As for quality I’d say GM is pretty good. Mine’s 14 yo and other than little stuff and regular maintenance it’s been great.

 

[ThisIsLivin]

I have a similar problem, my seat memory switches quit working. Swapped the switch and still didn't work. Took it to the dealer to run a diagnostic and 2 of the wires in the door harness are bad. They used cheap Chinese wire that wasn't properly annealed and it fractured. Now does anyone happen to know what the part number is for the door harness wiring for a 2015 Yukon Denali? Hopefully the repair part was made properly. My 03 Suburban with 360k on it still works perfectly.

 

[Big Mama]

Check with @915_Tahoe. He might need part of your vin.

 

[BlackYukon]

Just Replaced the switches and unfortunately still having the same Problem. I know All of the switches are getting power since the backlights are on at night. Hopefully I can figure something out so I don't have to go to the dealership and get honey dicked.

 

[OR VietVet]

Check with @915_Tahoe. He might need part of your vin.

He will need the last 8 digits of your VIN.

 

[915_Tahoe]

May need to be programmed or reprogrammed the master switch. Some vehicle need that switch to be programmed to the vehicle.

 

[ThisIsLivin]

Just Replaced the switches and unfortunately still having the same Problem. I know All of the switches are getting power since the backlights are on at night. Hopefully I can figure something out so I don't have to go to the dealership and get honey dicked.
View attachment 341380

 

[ThisIsLivin]

Did you ever figure out your problem? I now have the same thing. After doing some online research I'm leaning towards getting a new door harness.

 

[OR VietVet]

Where the wiring/harness goes thru the door jam at the hinge area, is where to open up and inspect for damaged wiring. Also, did either of you pay attention to what @915_Tahoe said about reprogramming?

 

[Roadtested]

I got in my vehicle a few days ago to find that almost all of the switches on the driver door had stopped working. The only switch that works is the drivers side power window switch and the Lock/Unlock button, all the other window switches including the side view mirror adjustment switch will not work.

Has anyone seen this before? I purchased some GM replacement switches so hopefully that works and it's not something deeper like the wiring harness.

Seems to be a common problem. Mine just quit also. Looks like they're abt $125 to replace.

 

[ThisIsLivin]

I just ordered a new wiring harness from GMPartsgiant. They give you the ability to verify that the part will work with your vehicle by VIN#. On top of they had a great price, harness was $120 including tax and shipping. If you have a 2015 the part number is 84305359.

 

[BlackYukon]

Did you ever figure out your problem? I now have the same thing. After doing some online research I'm leaning towards getting a new door harness.

I never did. I kept trying to get an appointment with my local dealership but never could work out a good time. I need to call them Monday and see if they can get me in now that I'm not so busy. Let me know how the harness works out.

 

[ThisIsLivin]

Picked up Covid on a business trip so it will be awhile. Plus I started a major brake project on my 03 Suburban. I'm replacing everything from the booster on down.

 

[BlackYukon]

I forgot to update this thread whenever I got the problem fixed. It ended up being a blown fuse, specifically #18 "Mirror Window Module" fuse in the drivers side fuse panel.

Hopefully that might help someone with troubleshooting this issue in the future.

 

[89Suburban]

I forgot to update this thread whenever I got the problem fixed. It ended up being a blown fuse, specifically #18 "Mirror Window Module" fuse in the drivers side fuse panel.

Hopefully that might help someone with troubleshooting this issue in the future.

Thanks for the update. Good to know.