Electrical Gremlin

[bobcowan]

I'm still struggling with this.

With engine ON, step on the brake pedal. Brake lights come on. But parking lights and dash lights also come on.

Turn signals work.

With the dash light switch, the parking lights, dash lights, and headlights come on, but not the brake lights.

I have unplugged all of the signal outlets from the harness, front and rear. No change.

I took the dash apart, looking for bad wires and connections - couldn't find any.

The brake pressure switch is mounted to the side of the master cylinder. There is one 20g red wire going in to the switch - power.
- if I disconnect that wire, no lights with the brake pedal

There are two wires coming out of the switch. A large red wire with no label.
- If I disconnect that wire, no change

And a smaller black/red wire labeled "Stop Lights"
- If I disconnect that wire, no lights with brake pedal

My thought is that there is a problem somewhere between the brake pressure switch and the dash. The supplied schematic is no help at all. All it shows is one wire from the pressure switch going directly to the brake lights.

My next plan is to disconnect the factory stop light wire, and run a new wire back to the outlets.

Any other thoughts?

[spdbrake]

In the beginning post you mentioned you had installed LED lights. Was the LED installation right after or during the reassy of the wiring upon return from the paint shop?

If so, one of the new LEDs may be shorting to the running lights side, and that will backfeed your dash lights and parking lights (aka running lights)

Do you still have the 1157 bulbs you removed to try?