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BRAkE warning light on dash after brake job??

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Old Feb 4, 2021 | 02:49 AM
  #1  
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Unhappy BRAkE warning light on dash after brake job??

2001 XJ Sport 4.0L i-6

New brake parts all the way around:
New rear drums & shoes, front rotors & pads & calipers
Full brake line bleed/flushed with new brake fluid.

Checked, double checked and triple checked. Clean brake job.

Why is my [BRAKE] dash light still on??

I don't think it an obvious solution, but hey, maybe you thought of something I haven't.

-T
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Old Feb 4, 2021 | 03:16 AM
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tech's Avatar
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It mite be the low brake fluid sensor , If it is you can tap on the brake reservoir sometimes the sensor will get stuck on the bottom .
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Old Feb 4, 2021 | 03:55 AM
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Check the switch on the parking brake too.
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Old Feb 4, 2021 | 05:07 AM
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If the resv is full ...stomp on the brake pedal really hard to reset switch in proportioning valve
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Old Feb 4, 2021 | 05:37 AM
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Did they do anything with the handbrake?
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Old Feb 4, 2021 | 06:34 AM
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could be a number of things, really.
do you have good brake pedal pressure?
as mentioned, could be a switch. there are three. one on you handbrake, one on your brake pedal, and one in your proportioning valve.
i doubt it is handbrake or foot brake switch, since you didn't touch any of those. so it could be the one in the proportioning valve. but still, you didn't go in there.

so, are your calipers on correctly? bleeder at the top, above the lines?
rear brake cylinders, again, bleeder at the top?
any leaks? master is full of brake fluid?
does your jeep have ABS?
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Old Feb 4, 2021 | 04:46 PM
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When you pumped the brakes to bleed....the side you were bleeding had less pressure than the others and that tripped the switch in the proportioning valve.
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Old Feb 10, 2021 | 02:34 AM
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Brake pedal pressure seems good.

I'll have to check the mentioned switches- thanks for the tip.

Calipers and brake cylinders are correct w/ bleeders on top.. no leaks, master cyl is full.

No ABS
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Old Feb 10, 2021 | 03:56 PM
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I had a wheel cylinder changed for my drums. The shop left air in mine and my light was on. Idk if yours are spongey but I'll never trust a shop again to bleed my brakes. I'd check there first since it's pretty easy to do because my abs light went away after I got all the air out.
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Old Feb 12, 2021 | 12:06 PM
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My guess would be that the brake pedal is going lower due to air in the system. Bled the brakes again. In my opinion a gravity bleed works best in these cases.
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Old Feb 12, 2021 | 05:15 PM
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Bleed the brakes.
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Old Feb 12, 2021 | 06:31 PM
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IDK about XJ's circuits, but my WJ's brake light will come on if the ABS light bulb burns out. My ABS hasn't worked in 8 years. I KNOW....you don't have ABS.
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Old Oct 9, 2022 | 07:55 PM
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Originally Posted by TsMint01XJ
2001 XJ Sport 4.0L i-6

New brake parts all the way around:
New rear drums & shoes, front rotors & pads & calipers
Full brake line bleed/flushed with new brake fluid.

Checked, double checked and triple checked. Clean brake job.

Why is my [BRAKE] dash light still on??

I don't think it an obvious solution, but hey, maybe you thought of something I haven't.

-T
Just wanted to add my problem and solution that is similar to above.



Problem: I had just changed my brakes and rotors. When I was done I started my car and disengaged the brake servicing system which in turn enabled my parking brake. Along with the parking brake were the yellow and red errors on my dash screen as well as the parking brake button flashing.



Solution: I unplugged my battery for 20 minutes. After I turned my car on, the lights were still flashing. I switched to drive and hit the gas a little but I was unable to move due to parking brake. After I hit the gas I was prompted to turn off the parking brake which was finally successful and is now working fine. Hope this helps!

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Old Oct 10, 2022 | 10:02 AM
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believe it or not, you have to press hard on the pedal with the engine running. the master cyl has to have the vacuum assist to turn out the light.
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Old Oct 10, 2022 | 12:50 PM
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Yes, I've run into this as well on my 2014 where I had to try multiple times to get it out of the brake service mode.
Also for future reference, this is the 1984-2001 Cherokee forum. The one for the 2014+ Cherokees is at https://www.cherokeeforum.com/f87/
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