GMC Troubleshooting Questions? Ask a Mechanic for Answers
Let me look at the wiring diagram. What engine is in this?
The power seats are fed from a circuit breaker. Try a new circuit breaker in the rear fuse block behind the rear seat.
Here are the wiring diagrams for the power seats,
This diagram shows where that rear fuse block is located,
What did these seats come out of?
If those seats worked then it must be something wrong with your seat.
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
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.
Actually it's much more than that, it's actually watching parameters.
I would just skip that and do any tests you can with the tools testers you have like a voltmeter.
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.
Heated Seat Inoperative
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.
Follow them tests procedures.
maybe yours is tripping the circuit breaker, check for power to the switch at the orange wire
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.
I'll be back in just a bit.
Look in fig 2.
Did you check all of those fuses like I asked?
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?
I would start with the fuse that feeds that orange wire you said had no power.
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?
Do you want to tell me what orange wire?