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Power seat not working?

Tiny
SOLERANO
  • MEMBER
  • 2007 CHEVROLET TAHOE
  • V8
  • 2WD
  • AUTOMATIC
  • 39,000 MILES
My driver electric seat stop working. I have checke the fuse box in the hood and the one by the door but all the fuse are Ok. Is there any other fuse or what could be the solution to this problem?
Tuesday, July 14th, 2009 AT 9:44 AM

29 Replies

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hello, did you check for voltage at the fuse circuit? Use a testlite. Let us know exactly which fuse you checked and the location. My info showed several fuses and a circuit breaker for the seat.
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Tuesday, July 14th, 2009 AT 10:47 AM
Tiny
SOLERANO
  • MEMBER
  • 2 POSTS
I have checked the one in the hood and the one by the door but I can not locate the breaker box
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Tuesday, July 14th, 2009 AT 11:06 AM
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS


https://www.2carpros.com/forum/automotive_pictures/170934_07_chevy_tahoe_1.jpg



CB3 should be the circuit breaker for the driver seat. If you look at your owners manual, it should give you the fuse labels and locations.

Again, did you use a testlight or something to check that the fuse circuit is hot???? Even if the fuse or circuit breaker is good, if there is no voltage to the circuit, it won't matter, the circuit is dead.
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Tuesday, July 14th, 2009 AT 12:52 PM
Tiny
SHYENNEKNOST
  • MEMBER
  • 3 POSTS
  • 2007 CHEVROLET TAHOE
  • 116,000 MILES
I have a 07 Chevy Tahoe. The Drivers seat stopped working. I have checked all fuses and wires, so I got a new seat module and took it to the Chevy place to get programmed. Still did not work. I took the seat out and hooked a power probe up and nothing. I unhooked the seat module and it worked. Now I have the seat back in the truck and sometimes it works and sometimes it don't with the power probe. So confused
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Sounds like you have an issue with the motor in the seat. Have the draw checked to see how much voltage it takes to make it work

Roy
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
SHYENNEKNOST
  • MEMBER
  • 3 POSTS
Ok Just pulled a code today B3920
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
SHYENNEKNOST
  • MEMBER
  • 3 POSTS
Also, what we came up with that code is that the track is bad. We gotta new track still does not work. Took the entire seat and put it in another truck and it worked fine. There has to be something wrong in the truck itself.
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
WRACHOR
  • MEMBER
  • 2 POSTS
  • 2007 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 133,000 MILES
When I press the circular button to adjust the lumbar, the lumbar position does not change. Although I hear a click each time I press down on a position (up, down, left, right).
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
If you can hear clicking it may be the gear is broken or cable or both. This has to have seat come apart and see what problem is. See picture.
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
JSTAPP1220
  • MEMBER
  • 1 POST
  • 2007 CHEVROLET TAHOE
  • 64,000 MILES
The back lifter on my 07 Chevy Tahoe seems to be stuck or just not working. I can hear it click when I press the switch up and down, but it will not move. It would not be so bad if the seat was in a position that was tolerable, but it is cranked all the way in the up position and my head is almost touching the ceiling of the vehicle. I have also noticed that it seems to no slide back as far as I would think it should. All of the other functions work, the front of the seat lifts up and down fine. Thanks for any help in advance!
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test the driver's seat adjuster switch and ground circuit G303 at near base of left "B" Pillar
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
DJCL
  • MECHANIC
  • 767 POSTS
If its making a clicking sound sounds like a worn gear or cable. I would remove the seat and do a good inspection under it.
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Friday, November 27th, 2020 AT 10:51 AM (Merged)
Tiny
REIMER
  • MEMBER
  • 1 POST
  • 2005 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 38,000 MILES
Heated seat switch does not work and the power seats as well. I cannot find a fuse or relay.
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Friday, November 27th, 2020 AT 10:52 AM (Merged)
Tiny
SAMANTHAJ
  • MEMBER
  • 1 POST
The heated/power seats are run off circuit breakers for the most part. There are two fuses in the interior fuse panel (DDM and PDM) that power the drivers side and passenger side door modules. Check the guide below on testing wiring and the diagrams for the seat wiring. Let us know what you find.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Friday, November 27th, 2020 AT 10:52 AM (Merged)
Tiny
KEN LUDDEN
  • MEMBER
  • 3 POSTS
  • 2005 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
By not working I mean no movement for either the direction switch or the lumbar switch. However, the memory mode selection switch 1 - 2 does work and the seat changes position between the two. Also, the seat heater works. The passenger seat works fine. I've already replaced the switch, checked the fuses, and cleaned the contacts on the control module under the seat.

Update: I've made some progress. The image attached shows that if I run a jumper between these two points the seat works. The main harness orange wire carries 12.4 volts, but the orange wire voltage is only 11.5 at the switch. Any insight on what the problem may be?
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Friday, November 27th, 2020 AT 10:52 AM (Merged)
Tiny
KEN LUDDEN
  • MEMBER
  • 3 POSTS
Image:
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Friday, November 27th, 2020 AT 10:52 AM (Merged)
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
You have resistance in that wiring from these two points. It appears that is from the main connector to the switch? If you are getting lower voltage at the switch then I would just cut the orange wire between those two points and make your jumper wire permanent. If you want to confirm this you can disconnect those two wires and measure resistance but you pretty much have already confirmed it.

Normally we are giving instruction to do what you have already done so you have already figured this out. So again, I would just make your jumper wire permanent by cutting the wires and splicing on the new wire. Let me know if you need help with that.

Good work!
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Friday, November 27th, 2020 AT 10:52 AM (Merged)
Tiny
KEN LUDDEN
  • MEMBER
  • 3 POSTS
Great! Thank you so much.
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Friday, November 27th, 2020 AT 10:52 AM (Merged)
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
You are welcome. Let me know if you need some more info on how to finalize the wiring repair but it sounds like you got this under control. Thanks for the update and come back to 2CarPros.
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Friday, November 27th, 2020 AT 10:52 AM (Merged)
Tiny
LEAHGARCIA
  • MEMBER
  • 1 POST
  • 2005 CHEVROLET TAHOE
  • V8
  • 4WD
  • AUTOMATIC
  • 105,000 MILES
Driver's seat won't move and the seat heaters in both front seats won't work
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Friday, November 27th, 2020 AT 10:52 AM (Merged)

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