KJL

The third brake light has never worked on my 1992 ZR1. The bulbs are good so I am assuming the brake pedal switch may be the culprit. I removed all the trim and found two switches, the one on the left has two wire harnesses connected to it, a 3 wire connection (12 ga wire?) on the side and a 2 wire (smaller gauge) on the rear. The switch on the right has what appears to be a tube of some sort connected to rear. Nothing is connected to the two 2 electrical tabs.

Which switch/wire connector is tied to the third brake light and how is switch removed? It looks to be threaded into a fitting that passes through the mount. There is no room to turn the switches themselves.

Are replacement switches available?

Any help would be appreciated!

s carter

the switches if i remember rite don't turn they slide in a ratchet tab. unhook the wires and wiggle the switch out. once you have out you can test with a volt meter in see if the switch is broken.

the switch should be available even at your local parts store

WVZR-1

For a '92 ZR-1 it might be easier to check for power at the ABS. The same light blue wire is used as a control wire for the ABS as the CHMSL.

If you have a FSM see 8A-110-0 and 8A-44-0 for explanations. I would think it much easier than struggling under the column. If indeed it is the SLS they're quite readily available still.

KJL

Thanks for the info.

whalepirot

isn't that for the cruise control release?

If the main brake lights work, but not the 3rd, s'not the switch.

KJL

It turned out to be the switch. There are three contractors that are associated with the 3-wire connector. The center is orange-12 vdc source and the left wire is blue and the right wire is white. When I placed a jumper between the orange and white wire, the rear lights came on, when I placed a jumper between orange and light blue wire, the third light came on. The switch can be disassembled, so I cleaned the contractors with 400 grit sand paper and everything now works fine.

WVZR-1

Yes the light blue is the CHMSL/ABS and the white is the conventional stop through the directional. I might have just bought a SLS but with it in hand maybe I might have done the "clean". I believe the '92+ does have a steeper asking price so I'd say you've done well.