Power seat wont work

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  #1  
Old 01-06-08, 03:58 PM
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Power seat wont work

Bought an old car
92 Buick Lesabre
Everything works on drivers side
Power seat on passenger side dont work. Nothing none of the buttons work. Seat wont move or make no noise.
Before I go tearing things apart, any advice.
Is there a separate fuse for the passenger side?

Thanks in advance
 
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  #2  
Old 01-06-08, 04:21 PM
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Look for a disconnected cable under the seat perhaps. There has to be a fuse somewhere; look in owner's manual if you've got one for some ideas. Also, search Autozone.com for a wiring diagram.
Good luck!
 
  #3  
Old 01-06-08, 04:30 PM
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Thanks Bob
I just got off autozone and it showed something called
LF door isolation
I don't know what that is but it sounds like left door isolation.
I am hoping it is simple as a relay or fuse.
I wont get to looking at it till tomorrow.
 
  #4  
Old 01-06-08, 04:48 PM
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I believe the power seats use a single circuit breaker. First thing to do, as stated, is to make sure the seat is plugged in. Then make sure the switch is plugged in. If so, disconnect the connector under the seat and probe for volatage and ground. If present, swap the switches from the driver's seat. See what happens. I would find it odd if all the motors were burned out on the one seat.

If there is no voltage or ground present, it may be a broken wire under the carpet or inbetween the door and door jamb.
 
  #5  
Old 01-06-08, 05:10 PM
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Went out and checked if wires were plugged in and they were. I wiggled them. Found the fuses for the power seats and exchanded them. No change so it is not the fuses. Was not going to work on it today but I want to know if it is something simple.
I am grabbing my VOM as I type and I am going out to look for voltage.
I am guessing that power will be at the connector only when I push the power seat button.
Thanks for the responses.
I will post back in a bit with what I find.
 
  #6  
Old 01-06-08, 05:47 PM
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6 wires, one main connector, 3 motors
Seems to me that the 2 wires that go to each of the motors are one for power and one for return to ground.
I could not get a chance to see if there was power in the wires.
I suspect a common link with all three motors is gone.
So it has one circuit breaker and it goes to...................................and then ..........................................???
Does this system have a relay ?
It does have a relay station under the hood but does not mark them. I have no owners manual or service manual.
The auto zone site does not show in detail the system.
I am going to get a manual but right now after the holidays and............ well.....you know.....cash is tight right now for several days
Anybody have a wire diagram of that system or knowledge of it?

Thanks
 
  #7  
Old 01-12-08, 08:39 AM
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Got it fixed

Took it all apart and it was the ground at the switch
The switch has a common power coming in and a common ground going out.
Somehow the ground female connector came loose and popped out of where it was to be. It looked like it was in place but it was not.
The fix was to reposition the female connector back in place and it is good again.
Thanks for the input
 
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