Window regulator stuck UP wont go down
#1
Window regulator stuck UP wont go down
My 95 SC400 has a minor issue. I purchased it recently knowing the window wasnt functional. Bought a new regulator, thought i'd test the new regulator before installing it. Nothing. Then all at once it went up...but not down. I thought "bad switch" so I went to my 92 SC and borrowed the switch from there...same thing. Window will go UP but there is absolutely no power going DOWN. Connections look good, I assume it would be a wiring issue? Please chime in! My car is in pieces right now...at least the passengers side is, I need this fixed.
Thanks
Thanks
#4
Lead Lap
iTrader: (8)
Wouldn't the electrical connection be the same for up and down, just a reversed signal? I'm thinking it has something to do with whatever the gear arrangement is. (Is that part of the regulator?) Like, a gear is slipping in one direction but not the other. That or its at the end of its adjustment range and the window is in the wrong corresponding position on the track. I had that happen with my passenger seatback tilt motor. I thought the motor was dead because it wouldn't go either direction. It turned out that it was "dead" in the all the way forward position, so no motor action going that direction, and the switch had melted contacts in the reverse direction. The motor worked all along but it wasn't at all obvious until tearing everything apart.
#5
Wouldn't the electrical connection be the same for up and down, just a reversed signal? I'm thinking it has something to do with whatever the gear arrangement is. (Is that part of the regulator?) Like, a gear is slipping in one direction but not the other. That or its at the end of its adjustment range and the window is in the wrong corresponding position on the track. I had that happen with my passenger seatback tilt motor. I thought the motor was dead because it wouldn't go either direction. It turned out that it was "dead" in the all the way forward position, so no motor action going that direction, and the switch had melted contacts in the reverse direction. The motor worked all along but it wasn't at all obvious until tearing everything apart.
Thanks for the replies
#7
Don't know what to do from here...should I just replace the regulator and see what happens? All wires seem completely fine and nobody has been screwing around with the harnesses. Though, there was an aftermarket speaker, just one, mounted directly beside the brake pedal...odd...? There is also a green wire that was crammed underneath a fuse inside the fuse block in the kick panel...traced it back to the door locks...
While the panel was off, I re inforced it with super glue and now it's stronger than ever!
While the panel was off, I re inforced it with super glue and now it's stronger than ever!
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#10
Lead Lap
iTrader: (8)
It looks like that green/white wire was just spliced back to itself, maybe after it split from age and wear? If you have another frayed wire, that makes me think there's a common ground between the master and passenger switches, so the pass. side doesn't work without the drivers side connected. But, that still wouldn't explain why the drivers side doesn't work, period.
#11
It looks like that green/white wire was just spliced back to itself, maybe after it split from age and wear? If you have another frayed wire, that makes me think there's a common ground between the master and passenger switches, so the pass. side doesn't work without the drivers side connected. But, that still wouldn't explain why the drivers side doesn't work, period.
So here is what I did. Removed the door panel, removed the speaker assembly and the plastic behind it, pushed the harness rubber boot through the door outside by the hinge, I peeled back the tape and rubber boot (without tearing it) went as far as I could, all looked fine, went to the side of the harness closest to the firewall, open it up and lo and behold, there is a frayed wire, red and white, actually it was a 2 inch piece all by itself, so I looked all over the place for the same white and red wire on the other side so I could track it back and splice it back together, found out that another different coloured wire was spliced to this red and white wire...weird, but it's spliced and working.
So if everyone doesnt wanna read that jabber, the issue was broken red/white wire in the drivers side harness.
Also another fact, if the master switch isn't plugged in, the passengers side switch wont work at all...learn new things everyday.
Thanks for the input all.
Picture below of what I found.
#12
Lead Lap
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Join Date: Feb 2008
Location: I.E Southern California to SA,Texas
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Yup looks like a short, do not leave any wires ripped open and exposed, tape or heat shrink for long lasting connection. If its slow you may still have a weak connection somewhere within the wires, also check fuses or relays. Glad you got it worked out tho.
Last edited by Joey-E; 10-17-14 at 08:58 PM.
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