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brake idiot light is on after installing new rear brakes

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Old Apr 29, 2010 | 08:03 PM
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Scooter86's Avatar
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From: MI
Year: 1992
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Default brake idiot light is on after installing new rear brakes

Last weekend I changed the rear brakes on my 92 cherokee, the brake light was not on before that and it was metal to metal. After putting new brakes on the light is stuck on. Any Ideas? It doesn't bother me that much just curious.
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Old Apr 29, 2010 | 08:16 PM
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From: Fontana, CA.
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Originally Posted by Scooter86
Last weekend I changed the rear brakes on my 92 cherokee, the brake light was not on before that and it was metal to metal. After putting new brakes on the light is stuck on. Any Ideas? It doesn't bother me that much just curious.
Does it have ABS? It could be a sensor.
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Old Apr 29, 2010 | 08:27 PM
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how do the brakes work? feel normal? check fluid level and reset your computer.
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Old Apr 29, 2010 | 08:39 PM
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Well they are a little softer than before. Yes it does have ABS. Whats the best way to reset(unhook battery?)

Fluid level is good
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Old Apr 29, 2010 | 08:43 PM
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You may need to adjust your parking brake cable. It's probably too tight and causing the brake light to be on.
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Old Apr 29, 2010 | 08:48 PM
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try bleeding them. unhook the negative terminal on the battery to reset
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Old Apr 29, 2010 | 08:49 PM
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check the switch in the combo/porportioning vavle , located just below master cyl, if you unplug it and the light goes out you found it.
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Old Apr 29, 2010 | 08:54 PM
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There is nothing to reset so don't bother disconnecting your battery.
Was the pedal soft before you replaced the rear shoes. Did you top off the brake fluid reservoir, Did you check to make sure you don't have the brake shoes reversed causing increaced pedal travel. Also those fluid level sensors tend to get stuck in the bottom of the master reservoir...lightly tap the side of the master to free it from the bottom. One more thing with the key in on and engine off, pull up the parking brake lever , if the light becomes brigther then your level sensor is stuck or you have air in the system from a leaking wheel cylinder, if not brighter then your parking brake light switch is broken or shorted.
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Old Apr 30, 2010 | 09:22 PM
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Thanks for the help as always
Unhooked the wire, light was still on.
The pedal was good before the brake change, soft now.
No I did not top off the fluid, it was and is still full.
I am about 99.9% sure shoes are on right, I did one side at a time, using other for reference.
The ebrake light was no brighter.

I never bleed them when I did the change, will do that tomorrow. Will try the tapping of the MC as well.
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