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Old 05-06-2010, 08:24 PM   #1
Join Date: May 2010
Posts: 5
Brake warning light

First post so be nice!!!!
'92 YJ with newly replaced brake lines, master cylinder, new rear cylinders, rebuilt calipers and replacement pads and shoes. Pressure bled system. I have excellent pedal height, hardness and positive braking on all four corners (as evidenced on jack stands and skid marks on both dirt and pavement). However, I can not get the Brake Warning light to go out. Is there a trick to re-setting the switch in the proportioner valve assembly. I have both factory manuals and can find no reference to re-setting the switch.
Thanking you in advance....Ed in 'ol Virginny

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Old 05-06-2010, 08:25 PM   #2
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Location: beach park, il
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any possibility its just the ebrake pedal, or switch sticking?

"The danger to America is not Barack Obama but a citizenry capable of entrusting a man like him with the Presidency. It will be far easier to limit and undo the follies of an Obama presidency than to restore the necessary common sense and good judgment to a depraved electorate willing to have such a man for their president."
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Old 05-06-2010, 08:45 PM   #3
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...forgot to add that I eliminated the problem possibily coming from the emergency bake indicator switch.
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Old 05-06-2010, 10:27 PM   #4
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Are you sure you reconnected the switch?
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Old 05-07-2010, 11:35 AM   #5
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Location: NJ
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The switch could be stuck in the prop valve. You should be able to remove the switch from the valve and make sure it is not stuck.
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Old 05-07-2010, 11:57 AM   #6
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You can temporarily reset it by starting the engine, then while STOPPED, stomp the pedal a couple times and then hold it down hard like you are panic braking.

The light should go out, but if it comes back on the next time you stop, you will need to do some more diagnostic work.

I am chasing the same issue right now. I need to take time to pull and clean the sensor then re-bleed the system.

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