Good afternoon, I have recently had time to trouble shoot my headlight issue. While doing that I think i messed something up so my taillights stopped working also. they might have not been working from the beginning but I'm not 100% sure. While driving down the road my headlights would stop working but my high beams would still operate. That would require me to drive down the road blinding people, but the low beams would start working again after a little bit. Like i said, today i was messing around and working on trying to figure it all out and noticed my taillights weren't working also. Here are several scenarios of what i did and if they worked or not, and if you could point me in the direction to see what the part that is bad might be.
1. Headlight switch in auto, ambient sensor uncovered, lights don't work. Just like how it is supposed to operate.
2. Headlight switch in park, ambient sensor uncovered, parking lights turn on, no dash lights. Work part way.
3. Headlight switch in driving lights, ambient sensor uncovered, no headlights, no dash lights. No exterior lights work except parking lights.
4. Headlight switch in auto, ambient sensor covered. Headlights work, taillights work, dash lights work.
5. Headlight switch in park, ambient sensor covered. Headlights work, taillights work, dash lights work. They headlights should turn off, does not work correctly.
I should also say that with the sensor covered and i turn it to shut all lights off they remain on. If anyone could point me in the right direction on what to replace would be greatly appreciated. I am leaning toward the headlight switch. The only things i could think of being the cause of the problem would be the sensor, switch, or BCM. I am hoping it is not the BCM.
Thanks for the help. Truck is a 2007 classic 2500.
1. Headlight switch in auto, ambient sensor uncovered, lights don't work. Just like how it is supposed to operate.
2. Headlight switch in park, ambient sensor uncovered, parking lights turn on, no dash lights. Work part way.
3. Headlight switch in driving lights, ambient sensor uncovered, no headlights, no dash lights. No exterior lights work except parking lights.
4. Headlight switch in auto, ambient sensor covered. Headlights work, taillights work, dash lights work.
5. Headlight switch in park, ambient sensor covered. Headlights work, taillights work, dash lights work. They headlights should turn off, does not work correctly.
I should also say that with the sensor covered and i turn it to shut all lights off they remain on. If anyone could point me in the right direction on what to replace would be greatly appreciated. I am leaning toward the headlight switch. The only things i could think of being the cause of the problem would be the sensor, switch, or BCM. I am hoping it is not the BCM.
Thanks for the help. Truck is a 2007 classic 2500.
