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'01 Grand Cherokee Brake Problem


 
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jbolive
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Joined: 09 May 2005

PostPosted: Mon May 09, 2005 5:15 pm    Post subject: '01 Grand Cherokee Brake Problem Reply with quote

Anyone have problems with the brake sys on GC Laredo. My ABS lite and BRAKE lites are staying on, but the brakes themselves are working fine. Checked all fuses and nothing found. Any help greatly appreciated.
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Jeep'n'John
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Joined: 01 Apr 2005
Location: Utah

PostPosted: Tue May 10, 2005 6:54 pm    Post subject: Reply with quote

Is your brake rotors good ???
Is your brake pads good ???
Is your tires good ???

All these affect the Antilock Brake System (ABS). What i mean by good is...

Your rotors should be in good conditon. Smooth and not glazed, bent, broke, cracked, or warped)

Your brake pads should be in good condition with plenty of pad and installed correctly including any clips if used on your particuler brake system.

Your tires should be in good condition. All the same size, roughly the same wear on them, and balanced.

If the ABS light is on it means the sensors at the wheels has indicated a fault in the way things are "supposed" to be working. The sensor constantly monitors the "turning of the wheels" and if the brakes or tires are causing a mechanical problem, the abs computer has no way to know that and will trip the ABS fault light.

Thats the easy stuff to check for and the most common reasons the ABS light comes on. If all that is ok the next thing you should do is pull fault codes and go from there.

What year is your GCL?
6 or 8 Cylinder?
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skiingmaniac00
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Joined: 21 May 2005

PostPosted: Sat May 21, 2005 4:13 pm    Post subject: Reply with quote

Thanks Jeff for starting this thread for me..

Its a 2001 Jeep Grand Cherokee
4.0L 6cyl.

Well, I've checked everything now finally got a OBD II hooked up to it. Heres the code I get:
Code 31 Cab Power Feed Circuit


Now if anyone has any idea what that actually is, please let me know. I have been searching and searching for an answer on this and so far haven't found one. Thanks all
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swamp boy
Cherokee Muderator
Cherokee Muderator


Joined: 01 Jan 2004
Location: New Orleans LA.

PostPosted: Sat May 21, 2005 6:06 pm    Post subject: Reply with quote

For ABS light I would start by cleaning the tone ring and sensor on each front tire...

Check and make sure all your brake lights work.. That will make the Brake light on the dash come on...
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skiingmaniac00
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Joined: 21 May 2005

PostPosted: Sat May 21, 2005 7:07 pm    Post subject: Reply with quote

I get both the ABS and emergency brake lights on. I checked all plugs and senors...everything seems to be fine.
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Jeep'n'John
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Joined: 01 Apr 2005
Location: Utah

PostPosted: Mon May 23, 2005 8:36 pm    Post subject: Reply with quote

Do you have a paper back Chilton Repair Manual?

Mine only goes to 98 or id do some looking for you...

But in mine it gives a pretty good discripton/troubleshooting section on the abs system... My Haynes Manual has nothing on Trouble Codes. Your going to need a book that will Explain what your troubleshooting and why. Its the only way youll get it figured out unless you can find someone who has the knowlege...

I know they make OBDII Manuals that are specifically for Troubleshooting OBDII Codes too...

tool Youll probibly want a good wire diagram too...

obviously there is a problem in the cab power feed circuit...power feed to what though ? I would assume to the power feed to the abs module but i dont know for sure... those manuals will help decifer the codes but you are most likely going to be tracing wires and checking connections.
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