[GuardsRedCoupe]

Well, I picked up my new (to me) guards red coupe last weekend, and launched out this weekend to try to fix some of the quirks in the car. However, it has a power seat problem that has got me stumped.



Both of the driver’s side motors will only go one direction: up. If I push the down switch, nothing happens. I suspected bad switches, so I hooked up a voltmeter at the leads to the motors, but the switches gave +12V and -12V when I flip the switches. If I reverse the polarity on the motors, they will lower the seats, but then they won’t go up. It’s as though the switch only works when you press the ‘up’ direction, but like I said, I verified the switches with the meter. <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" /> Thoughts?

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[sasilverbullet]

Sometimes just checking the switches with an ohm meter doesn't catch everything that can be bad.



Actually hook up the correct voltage to the seat motor to make it go both directions. If that works, then get some new switches.



It may be something binding in the mechanical portion also. I had something similar in a marquis, and it was because some hair had jammed in the gears.

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[GuardsRedCoupe]

After thinking about this problem for a while, I thought I'd check the grounds... who knows what kind of weird problems they might cause.



I've attached pictures showing ground points in the engine bay. Both grounds have been attached to a pigtail which is attached to the ground point. The ground wires are not shorter or anything: they would reach the ground point just fine. Anybody have the slightest idea why anyone would do this??? <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" /> <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" /> Very strange indeed.











P.S. I tried running a direct ground to the seat, but that didn't change the behavior.

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[Bob Kovacs]

Those twisted-on wires to the ground point are going to give you problems if they aren't already. You should disconnect the bits of twisted-on wire and reconnect the battery ground wire directly to the ground bolt. It's probably a good idea to clean up the ground point a bit with a wire brush or a bit of sandpaper. Once everything is properly connected and tightened, I suggest a bit of Vaseline or other grease to prevent rust and corrosion. There is an anti-corrosion spray that has worked well on battery terminals for me but I can't remember what it's called.



--Bob

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[Mike in NJ]

Ground point issue aside, I'd be willing to bet serious money that the switches are the problem. These switches do act up. I have two of these cars, and have had switch problems with both. The symptoms are exactly as you describe. I took mine apart and cleaned them up, as replacements were fairly expensive as I recall.

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[GuardsRedCoupe]

[quote name='Mike in NJ' date='Aug 2 2005, 02:18 PM']I took mine apart and cleaned them up, as replacements were fairly expensive as I recall.

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Fairly expensive is right .. $81 for a single switch! YIKES. I'm sorry, but if I spend $81 on a switch, it better come with a flux capacitor! <img src="/forum/images/smilies/968/blink.gif" class="smilie" alt="" />

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