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2000 sedan deville
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11 Posts
Discussion Starter #1
to make a long story short i have no interior lights i ck the fuse and it was blown i put a new fuse in it and it blew right away so basically i have a short some ware but i don't know ware to start if anybody can help me with a wire diagram i would appreciate it.(i have 2000 cadillac sedan deville)also its not all the lights its just the courtesy lights
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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71,024 Posts
Good chance that one or more of the wires in the door umbilical cords is broken/shorted.

The wiring diagrams for this system are quite involved, so your best bet is to either wait until someone with the exact problem chimes in, or subscribe your car for 1 or 3 years to www.alldatadiy.com. Alldata is a huge database of everything you could possibly ever want to know about your car, or get a Helm/GM Factory Service Manual off of eBay......forget Chilton's or Haynes: far too generic.

Check out the feed and distribution circuits just before and after the courtesy light fuse (relay ???) in the fuse boxes - your owner's manual will have the names and numbers for the fuses.
 

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2000 sedan deville
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11 Posts
Discussion Starter #3
thank u i'll ck the door umbilical cords,i cant get that stuff right now kind of broke till friday. IM thinking it might be a bulb because i seen this once on a customers car at work but i don't know i just found this problem last night so i haven't dug my nose around yet i'll keep u updated.
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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71,024 Posts
A bulb doesn't blow fuses......the fuses in the circuit are rated to drive all the bulbs on that circuit to full voltage and amperage, BUT you won't hurt a thing, and KNOW it isn't a bulb if you (PITA) pull each courtesy bulb and check it for function. (Has anyone recently changed a bulb or had a socket out for any reason ??)
 

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2000 sedan deville
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11 Posts
Discussion Starter #5
i don't know if any ones done a thing to it i just brought it yesterday but i ck the umbilical cords don't see anything wrong with them also i shut all the doors and put a new fuse and it still poped + i pulled all the cigeret lighters still samething wondering if it might be one of the fixtures what do u think?
 

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2000 sedan deville
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11 Posts
Discussion Starter #6
i just got done cking all bulbs and fixtures no problems there none look corroded or shorted i talked to my sales men he said they replaced the window regulater in the rear right door think maybe he pinched a wire or something its worth a look i'll keep u updated.
 

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1993 Cadillac deville sedan 1986 cadillac deville RIP
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1,498 Posts
i would check all the lighting housing may be the contacts are touching causing the fuse to blow. idk if your caddy is wired like this but sometimes the cig lighter is wired to the interior lights and sometimes stuff like pennies or dimes get in there and blows the fuse. a dime got into mine and blew the radio fuse and pissed me off thought the wiring was bad but its doesnt hurt to check
 

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Registered
2000 sedan deville
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11 Posts
Discussion Starter #8
yesterday i found my problem i pulled and unplugged all my fixtures and installed the fuse it didn't blow then i installed the fixtures 1 by 1 found when i installed the left rear door fixture it popped the fuse i then removed the light bulb because it was black in the middle and reinstalled the fixture it didn't blow the fuse.i put in a new bulb and my problem is gone it was a blown light bulb! thanks for everybody's help:highfive:
 
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