cpo

iTrader: (13)

Fuse is good. Have searched but found nothing that addresses troubleshooting brake light wiring or the switch activated by the brake pedal. Could someone please steer me to a good thread or two that might help me out, thanks.

TooLateVTEC

iTrader: (2)

Is the brake pedal switch getting pushed in far enough by the pedal?

Most are adjustable.

Check that first, if that appears normal, I would start looking at possibly a ground problem for that circuit.

98TAjwh

iTrader: (4)

water intrusion is another item to check. this is more common in the front than the rear but it wouldn't hurt to rule it out.

cpo

iTrader: (13)

Yeah but what are the odds all 3 lights have water intrusion? What I really need is a wiring diagram for the brake lighting system. If there is something like that here, it has managed to elude my ninja searching skills so far.

Brake lights aren't sexy and don't provide horsepower, but they are important people! Someone help me fix my brake lights, please.

98pontiac

dont listen to those knuckle heads. Replace the brake light switch located at the upper portion of the brake pedal. unplug it and turn it out.

6speedt/a

iTrader: (1)

First see if you have power in and out of the switch mounted on the pedal with the pedal depressed. if no power it is more than likely the turn signal switch. If power in and no power out with the pedal depressed than its the switch. if power in and out than check for power at the bulb socket. if not power at the socket then start tracking wires. hope that helped

cpo

iTrader: (13)

Thanks for the help so far guys. I've pretty much ruled out the the turn signal switch as it doesn't affect the 3rd brake light, and mine is out. So it is almost surely the brake pedal switch. Tough to get my 6'2" 275lb frame under that dash area, so I'm going to attempt to track down a new switch and have a local shop install it for me.

Might be a week or so, but I'll keep the curious posted.