2012 Yukon XL Denali seat issues

[BSarteSr]

Circuit breaker is like a fuse that resets itself, but they can go bad.
I circled the breakers. (stolen ebay image)
View attachment 439137

I tested all 4 of those relays and they were good with continuity.

While I was there I found a fuse from the side panel. I think it comes out of location 26. When I try to put it back in there does not want to stay in place like there are no prongs like in the other fuse locations. I took the whole fuse panel out to see if there any prongs behind location 26 but having trouble getting the top cover off. Last thing I want to do is break the fuse assembly.

Any ideas on how this fuse panel comes apart?

 

[mikez71]

Sorry don't know how to take that panel off yet.
I would stuill try and verify there is voltage on those circuits.

Fuse 26 looks like a Driver Power Door Lock fuse? GM probably calls it DPDL, jokin.

 

[BSarteSr]

Sorry don't know how to take that panel off yet.
I would stuill try and verify there is voltage on those circuits.

Fuse 26 looks like a Driver Power Door Lock fuse? GM probably calls it DPDL, jokin.
View attachment 439223

Not sure about the fuse in location 26, I put it all back together and the drivers door lock works fine? Go figure.....

I did not check power/voltage in any of those 4 relays.

 

[mikez71]

I'm not sure all vehicles have all the fuses.
Apparently some vehicles don't have door modules and are wired a little different.
Not sure if it's foreign markets or what, I just seen it in wiring diagrams.

Just checked my '12 Tahoe, and no fuse in 26. So I wouldn't worry about that.

 

[BSarteSr]

I'm not sure all vehicles have all the fuses.
Apparently some vehicles don't have door modules and are wired a little different.
Not sure if it's foreign markets or what, I just seen it in wiring diagrams.

Just checked my '12 Tahoe, and no fuse in 26. So I wouldn't worry about that.

I checked the for power in all 4 of the circuits, had 11.5 volts DC on what be my right side pins and nothing on the left side pins which is what I would expect.

Still no power to the passenger seat.

 

[mikez71]

Sorry I COMPLETELY MISSED it was the passenger seat! Gave you the wrong diagram!
Made you check those breakers for nothing! My bad.

Here's the passenger side... Looks simpler. I believe the 1440 power wire to the switch is Red/White.

Check fuse first.
Make sure power and ground to switch is good.

If it is, you could jumper the power wire to any of those output wires and it should move something..
Or you could test the switch for continuity as you press the switches.

But I bet it's a power/ground issue if they all quit working.




If you have the lumbar support seats, let me know there is another diagram, but basically just running the same power wire to a separate set of switches controlling more motors.

 

[BSarteSr]

Sorry I COMPLETELY MISSED it was the passenger seat! Gave you the wrong diagram!
Made you check those breakers for nothing! My bad.

Here's the passenger side... Looks simpler. I believe the 1440 power wire to the switch is Red/White.

Check fuse first.
Make sure power and ground to switch is good.

If it is, you could jumper the power wire to any of tose output wires and it should move something..
Or you could test the switch for continuity as you press the switches.

But I bet it's a power/ground issue if they all quit working.

View attachment 439307


If you have the lumbar support seats, let me know there is another diagram, but basically just running the same power wire to a separate set of switches controlling more motors.

OK, got some more checking to do.......Thanks!