LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Powering electric seat with no power to car

Old 08-14-14, 10:14 AM
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Crybicki
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Hey CL! So here is my ordeal: I have two LS400's. One is a black 92 (my daily driver), the other is a white 93 ( my parts car). So I have been taking parts off the parts car and I have taken apart most of the electrical already, so no power to it. I however didn't think to raise the power seats up so I could take them out before hand. Is there a way to use a battery to plug directly into the seat switch on the power seat to get it to move? I need to do both driver and passenger. I so need to move the headrests up so I can take those out. So you electrical gurus, I would appreciate the help. Thankyou!

EDIT: I was able to get the rear bolts out of both seats. Now I just have to find out how to get the front ones out as they are all covered due to the position of the seats.

Last edited by Crybicki; 08-14-14 at 10:33 AM.
Old 08-14-14, 01:32 PM
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timmy0tool
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can't just plug in a battery in the orginal spot? did you take out the main harness already?

you will have to find the module that powers the seats and supply 12Vs to it.
Old 08-17-14, 10:31 AM
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Crybicki
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No, can't plug battery in, most electrical stuff already out. I know I need to power the seats up but I don't know how to do that, hence my post.
Old 08-17-14, 02:59 PM
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Largefarva
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Feed power to the blue/white and ground to the white/black.
Old 08-18-14, 05:28 PM
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Thank you! That's exactly what I needed to know!
Old 08-21-14, 08:30 AM
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Crybicki
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Originally Posted by Largefarva
Feed power to the blue/white and ground to the white/black.
I'm not surprised this worked but I am absolutely ecstatic right now that it did! Thankyou, thankyou, thankyou! If I could buy you a beer right now, I would!

Last edited by Crybicki; 02-14-15 at 09:26 AM.
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