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> Brake pressure warning switch
SVG223
post Jan 22 2023, 01:49 PM
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In the middle of rebuilding/bleeding the brakes and the parking brake warning light is flashing while doing test drives and won't shut off. After checking the parking brake switch I do a little research and read about the brake pressure warning switch on the master cylinder which has a reset button. I'm thinking about how often I might have to reset the thing before I'm done with the brakes. What about cutting the wire to the switch until I decide to rebuild/replace the master cylinder, then reattach it? I don't think I need a flashing light to tell me that I have low brake pressure, that should be obvious.
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Dave_Darling
post Apr 11 2023, 10:09 PM
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Many of the switches are latching, so even when the shuttle moves back into place it still grounds the single contact (or bridges the two contacts together). Those must be reset by pressing the button on the switch--usually it's covered by a rubber cover.

Some switches are not latching, so when the imbalance goes away and the shuttle re-centers itself the light goes off. I believe that those are replacement switches.

--DD
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