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Old 10-31-2004, 02:18 AM
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420 SEL Seat Switch Goofiness!

1986 420 SEL....both left & right seat switches (with memory) only work with the corresponding door in the open position.......?????
Door worky! Door open.....adjustments work, but not the green memory button???
All fuses check out OK...........I'm stumped!
I could understand if just one of the doors acts this way......pinched wire, bad switch, etc........but both doors started doing this around the same time?

Any and all replies greatly appreciated!

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Old 10-31-2004, 03:22 AM
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inside the fuse box there is a diode bridge. if for some reason the diode fails this problem will happen, the part number is 000-540-42-81
here is a picture of the item i can get one for you if you need it. let me know.
send me an email Ray

Last edited by carson356; 02-05-2006 at 03:36 PM.
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Old 10-31-2004, 03:24 AM
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i just looked and saw the same part in fastlane, go there and do a search with the part number, it is around $10
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Old 11-07-2004, 11:57 PM
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It's why I luv ya guys!

Another time & money saving post from the talent in this group....bought the doide bridge........Viola! ....No more seat switch problems! Exactly as you was indeed the culprit!
Thank you so much!
Keep up the great work!
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Old 11-08-2004, 08:11 PM
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all those with questions should follow in Harpman's lead, if we take the time to stop and assist you please let us know if the info we offered was useful.


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