Made a trip to the Pick-a-part today. Swapped some parts. Still no change. So here's what we know is NOT the problem;
Door actuator - Confirmed via DVOM and/or physically disconnected the switch to open the circuit and tell the module the door is shut. (For all doors)
Headlight switch - Swapped for a JY unit. Situation unchanged.
BCM - Swapped for a JY unit. Situation unchanged.
LED bulbs - To rule out as a cause, I swapped all LED bulbs back to standard incandescent ones.
The only other thing I can think that affects interior lighting is the ignition switch. Is it possible this is the cause?
