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Mike S.
Mike S., ASE Certified Technician
Category: GMC
Satisfied Customers: 6825
Experience:  GMC N.A.I.S.E. Certified Auto-Mechanic
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2006 envoy Denali front seat has no movement.. I couldn't

Customer Question

2006 envoy Denali front seat has no movement.. I couldn't find any blown fuses and I switch the seat with my friends car and it didn't work either
Submitted: 4 months ago.
Category: GMC
Expert:  Mike S. replied 4 months ago.

Let me look at the wiring diagram. What engine is in this?

Customer: replied 4 months ago.
5.3
Expert:  Mike S. replied 4 months ago.

The power seats are fed from a circuit breaker. Try a new circuit breaker in the rear fuse block behind the rear seat.

Expert:  Mike S. replied 4 months ago.

Here are the wiring diagrams for the power seats,

Customer: replied 4 months ago.
It's got something to do with the memory part because I put in a seat with no memory and it will function I was thinking memory seats must need an extra power or ground
Expert:  Mike S. replied 4 months ago.

This diagram shows where that rear fuse block is located,

Expert:  Mike S. replied 4 months ago.

What did these seats come out of?

Customer: replied 4 months ago.
The none memory seat came out of a trailblazer
Expert:  Mike S. replied 4 months ago.

What year?

Customer: replied 4 months ago.
I think 2007
Expert:  Mike S. replied 4 months ago.

If those seats worked then it must be something wrong with your seat.

Customer: replied 4 months ago.
the harness is the same for memory or none?
Expert:  Mike S. replied 4 months ago.

The wiring diagrams were identical.

Here are some troubleshooting steps.

there are 2, Power Seat Inoperative (with Memory) and Power Seat Does Not Move Forward/Rearward

Expert:  Mike S. replied 4 months ago.

Don't know but complete those troubleshooting steps. I believe one of the first steps is retrieving trouble codes. If you don't have a scan tool, ask if your local auto-parts store will retrieve the codes for free, some do.

Customer: replied 4 months ago.
Ok I'll reply back in about a hour with an update
Expert:  Mike S. replied 4 months ago.

Actually it's much more than that, it's actually watching parameters.

Expert:  Mike S. replied 4 months ago.

I would just skip that and do any tests you can with the tools testers you have like a voltmeter.

Expert:  Mike S. replied 4 months ago.

I've been awake all nite, so I might fall asleep any minute now, so if I don't reply, am not ignoring you, it's that I most likely went to sleep.

Customer: replied 4 months ago.
OK another thingwas drivers side seat and passenger side seat heat buttons are in op
Expert:  Mike S. replied 4 months ago.

Heated Seat Inoperative

Customer: replied 4 months ago.
I just put my seat in a 2007 trailblazer none memory and it worked so it's something wrong with my car
Expert:  Mike S. replied 4 months ago.

I thought you said before, " I switch the seat with my friends car and it didn't work either". But then again, later you said "I put in a seat with no memory and it will function".

Kinda contradict eachother.

Customer: replied 4 months ago.
The one from my friends was a memory and it would not move if I put one with no memory it will move in my car
Expert:  Mike S. replied 4 months ago.

Follow them tests procedures.

Expert:  Mike S. replied 4 months ago.

maybe yours is tripping the circuit breaker, check for power to the switch at the orange wire

Customer: replied 4 months ago.
At the main seat connection?
Expert:  Mike S. replied 4 months ago.

Yes, look at that first wiring diagram I gave you, the very first page, the orange wire to pin E of that drivers side adjuster switch.

Expert:  Mike S. replied 4 months ago.

I'll be back in just a bit.

Customer: replied 4 months ago.
The big orange wire is getting power ..the small orange wire is not
Customer: replied 4 months ago.
How come the seat module is not in that wiring diagram?
Expert:  Mike S. replied 4 months ago.

Look in fig 2.

Expert:  Mike S. replied 4 months ago.

Did you check all of those fuses like I asked?

Customer: replied 4 months ago.
The breaker powers both seats and the passenger seat works
Expert:  Mike S. replied 4 months ago.

Fuses, I see a lot of them. If you want me to help, I don't know which orange wire is big or small, you will have to look at the wiring diagram and tell me where they are going, to what pin of what item, then I will be able to tell you what specifically to check, such as which fuse feeds that smaller orange wire, but I have no idea which orange wire it is and to what, there are at least 4 orange wires in fig 2, 2 of them in fig 1 and 2 more in fig 3 and 4 more in fig 4. Plus tell me which fig to look at when you tell me which orange wire.

Now, which orange wire has no power, to what pin of what item and in what fig?

Customer: replied 4 months ago.
Which fuses do I need to check?
Expert:  Mike S. replied 4 months ago.

I would start with the fuse that feeds that orange wire you said had no power.

Expert:  Mike S. replied 4 months ago.

I'll tell you which fuse to check if you tell me which orange wire has no power, to what pin of what item and in what fig?

Expert:  Mike S. replied 4 months ago.

Do you want to tell me what orange wire?

Customer: replied 4 months ago.
Pin 8and 4 on the seat connector to the car Im trying to figure out how to tell you what ones