Interior Light don't work.
Thread Starter
TECH Enthusiast
Joined: Nov 2009
Posts: 620
Likes: 0
From: Brownsville, texas
Interior Light don't work. Well the other day i had the smart idea to switching out the OEM bulbs for some LED's. Everything was going great till I tried to install the rear dome led, to keep it short I put the led the wrong way and blew the fuse. Well i couldn't find a matching amp fuse so I put in a 30 amp fuse thinking nothing could go wrong
. So the fuse doesn't blow out but the rear dome starts to smoke.
Finally opened up the rear dome and the wire is completely melted....
There is no power going to ANY of the interior lights. But there is power in the fuse box. So I'm assuming I fried the BCM? Can any one give me a helping hand. I'm pretty much lost....
Thanks again,
Adrian.
. So the fuse doesn't blow out but the rear dome starts to smoke.Finally opened up the rear dome and the wire is completely melted....
There is no power going to ANY of the interior lights. But there is power in the fuse box. So I'm assuming I fried the BCM? Can any one give me a helping hand. I'm pretty much lost....
Thanks again,
Adrian.
Joined: Nov 2003
Posts: 11,334
Likes: 347
From: Jacksonville, FL (originally from Toronto Canada)
Sounds like the BCM. The courtesy light circuit runs constant (battery) power through the COURTESY fuse to the BCM which then passes that power out to the courtesy and map lights. The courtesy lights are controlled by the BCM via the return (ground) side - it reduces the ground gradually to produce the theater dimming effect and then leaves the ground off until the next time the courtesy lights are needed. The map lights have a regular chassis ground so although they get constant power from the BCM, they are controlled solely by the switches on the mirror.
Thread Starter
TECH Enthusiast
Joined: Nov 2009
Posts: 620
Likes: 0
From: Brownsville, texas
Sounds like the BCM. The courtesy light circuit runs constant (battery) power through the COURTESY fuse to the BCM which then passes that power out to the courtesy and map lights. The courtesy lights are controlled by the BCM via the return (ground) side - it reduces the ground gradually to produce the theater dimming effect and then leaves the ground off until the next time the courtesy lights are needed. The map lights have a regular chassis ground so although they get constant power from the BCM, they are controlled solely by the switches on the mirror.
