Where is this "BCM Ground Wire"
Where is this "BCM Ground Wire" I'm wiring up more interior-courtesy lights. I tapped into a white wire on the DRIVER'S side under the dash.. I think this is the wrong one as the ground is always "on?"
Where is the right one?
Where is the right one?
Joined: Nov 2003
Posts: 11,328
Likes: 345
From: Jacksonville, FL (originally from Toronto Canada)
The white ground wire for the courtesy lamps is available at the rear view mirror, the dome light, and in position D1 of the blue 32-pin connector at the BCM (it's the only all white wire in that connector).
Here's the issue I'm having, read post #8 if you have a minute.
https://ls1tech.com/forums/appearanc...-lighting.html
Thanks white bird.
Joined: Nov 2003
Posts: 11,328
Likes: 345
From: Jacksonville, FL (originally from Toronto Canada)
The BCM is a black box about the size of a paperback book mounted to the ductwork behind the glovebox on the passenger side of the dash. It has three connectors - 6-pin green, 6-pin black, and 32-pin blue.
The BCM controls the courtesy lamps using both the power and ground connections. The white ground wire controls the theater dimming effect to turn off the lights after the doors are closed. But the dark blue with white power wire is also used to turn off the lights if a door is left open - this is part of the battery protection function. You can substitute a constant (battery) power source but you run the risk of killing your battery if something goes wrong and the lights stay on all the time (e.g. door switch problem, etc.). The dark blue with white wire is available in all the same locations as the white wire.
The BCM controls the courtesy lamps using both the power and ground connections. The white ground wire controls the theater dimming effect to turn off the lights after the doors are closed. But the dark blue with white power wire is also used to turn off the lights if a door is left open - this is part of the battery protection function. You can substitute a constant (battery) power source but you run the risk of killing your battery if something goes wrong and the lights stay on all the time (e.g. door switch problem, etc.). The dark blue with white wire is available in all the same locations as the white wire.
Hmmm.. cool, thanks whitebird. So, will the blue with white wire be able to shut off the lights after just closing a door? Or is that ONLY the white one, and the blue with white is ONLY if the doors are left open?
Time to go fix this, thanks again man!
Time to go fix this, thanks again man!
