Reverse light turn on when I switch off the engine
Saturday, November 17th, 2012 AT 3:34 PM
Remove fuse #17 when the back-up lights are on and engine off with key out. Lights should go out. If so, this lets you know that the wiring to the back-up lights is not shorted to power from another circuit.
From this point the BCM (body control module) is the only suspect.