Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hello and thank you for using JustAnswer. My name is XXXXX XXXXX I will do my best to help you with your Chevy problem.
Do the lights not work with any of the doors, or just the drivers door?
According to the diagram, it is fuse #18 in the underhood fuse panel.
The label for the underhood fuse panel shows that this fuse location should be empty. If you find this to be true then check the BCM 2 fuse in fuse location #37.
Does sound like the BCM is bad. Supplying power to the orange wire at any of the dome or courtesy lamps will feed power into all the other lights and will make them work.
Most of the door ajar signal wires are in the BCM connector X6 (pink connector) See diagrams below.
The dimmer switch control wire is in connector X2, pin 18 dark blue/white wire
Each of the door signal wires and the dimmer switch control wire can be connected together to supply a ground signal to turn on the relay.
The BCM is located under the passenger side of the dash.
Remove the knee bolster by unsnapping it from the dash.
The BCM and connectors are behind this panel.
You will want to tie into the door open switch signal wires. The drivers door signal wire is in connector X7 (tan connector) pin 23
At connector X4 (black connector), tap into the red/white wire at terminal 1. This is the power source.