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96 jimmy brake warning lite constantly on


hahtubmike
11-13-2007, 12:11 AM
Hey guys. Someone is usually smart about problems out there. My brake light came on. Took it to a brake shop they diddled around for about an hour, bled rear brakes and got light to go out. Next day it's back on. Parking brake is not stuck and I have good pedal. Any thoughts? I hate red lights on dash.

old_master
11-14-2007, 08:23 PM
Only two things will turn it on: the parking brake switch, or the combination valve, (proportioning valve and centering valve in one housing). The parking brake switch is pretty straight forward, unplug it, if the light goes off, that's the problem. The combination valve will turn the light on if there is air in one of the hydraulic systems, or there is a hydraulic fluid leak.

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