I am having a very hard time getting the door triggers to work in a 99 chevy silverado. I know that the tan wire is for the driver door and the blue/white wire is for the passenger. The problem is with the tan wire. It shows ground all the time, whether the door is open or not. However the domelight cuts on when you open the door and stays on until you shut it, just like it should. i tried to tap into the wire on the domelight that turns to ground when it's on, but that doesn't seem to work either. Here's where i'm having trouble. Ok, i'm at the dome light switch in the dash. There are two lights that go to the dome light, an orange and a white. Both show +6v when connected to vehicle ground. However, when the red probe of the dmm is connected to the orange wire and the black probe to the white, it shows +6v, if you reverse the probes it shows -6v. They show this when the light is on and off. Now this doesn't make sense to me. Can anybody help? What makes the light turn on and off and how can i interface with it?
Is there another wire that turns the domelight on and off when the doors are open and shut?
I wonder if your trucks doors have two types of switchs in each one.You may see a flush mounted pinswitch on the inside door jamb of the body(also on the on side of your dash).There also could be a switch in the latch of each door. It sounds like one of them have grounded out, have you done any work in your door panel?
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dan
Remember (there are no hard cars,some just take longer to install on then others)
I found a way to do it. It didn't make much sense though. I used the domelight wire at the courtesy lamp inside the driver door. At the domelight switch it read 6 volts but at the light it read 12. I just used the negative side and ran it to the door trigger. Now it performs just as it should. Thanks for your help.