Georgia Fiero Club Forum
All Things Fiero => Tech Tips, Tech Questions => Topic started by: GTRS Fiero on December 13, 2018, 09:09:14 am
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There is a brake switch on the proportioning valve, and behind the brake pedal. That's great. The one behind the brake pedal is for disabling the cruise. Also great, except non-cruise Fieros have a special switch here.
Why are there 2 brake switches?
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The switch on the proportioning valve is for the brake warning light. If you run out of fluid or have a brake failure, the piston will move far enough that a plunger on the bottom drops into a notch in the piston and will turn the switch on, illuminating the brake light.