Compatible with Jeep Models:
Grand Cherokee Laredo 1999-2004 WJ Series 6Cyl 4.0L
Grand Cherokee Laredo 1999-2004 WJ Series 8Cyl 4.7L
Grand Cherokee Limited 1999-2004 WJ Series 6Cyl 4.0L
Grand Cherokee Limited 1999-2004 WJ Series 8Cyl 4.7L
Grand Cherokee Sport 2002 WJ Series 6Cyl 4.0L
Grand Cherokee Sport 2002 WJ Series 8Cyl 4.7L
Grand Cherokee Overland 2002-2004 WJ Series 8Cyl 4.7L
Grand Cherokee Special Edition 2004-2004 WJ Series 6Cyl 4.0L
Grand Cherokee Special Edition 2004-2004 WJ Series 8Cyl 4.7L
Joined
Jul 20, 2009 · 1,878 Posts
Discussion Starter · #1 ·
Apr 1, 2012 Yesterday was really the first time I drove the Jeep in about 3 months. I got to the end of the street, then the BRAKE + ABS light came on and remained on for the trip - approx. 4 miles just to grab some pics and back home. This morning out of curiosity I drove the Jeep (~1 mile), ABS + BRAKE lights were still on. Then after starting the
Jeep again to head home it went off, but when I went to turn around in the street I hit the brakes and it felt like ABS was kicking in (~10mph). Turned round and drove a few yards and this time only the ABS light came on. Restarted it again this evening and both BRAKE and ABS lights are on. Just looking for any ideas, I've had a look on Google and it looks like it might be a speed sensor. Checked the connections tonight and they are all fine and every plug in the engine bay is
reconnected - fluid is also fine. Also the brakes feel fine with either light(s) on. Thanks in advance! :thumbsup: Joined
Dec 15, 2010 · 1,812 Posts
You will need a code reader capable of reading ABS codes, not all scanners can do this. I had a similar issue, the lights would come on but braking seemed ok. Turned out the code was for the right front wheel speed sensor. By the time the part showed up at the door the code was gone, hasn't come back since. My thoughts are that there was some dirt or grease
on the sensor or tone ring, and after a while it fell off and things returned to normal again. Joined
Feb 12, 2010 · 3,232 Posts
I remember a work colleague having the same issue. Turned out to be dirt on the sensor, thus it couldn't read the notches or whatever it does properly. Of course the garage only discovered this after he'd spent £1500 on a new abs unit plus labour!
Joined Dec 15, 2010 ·
1,812 Posts
I remember a work colleague having the same issue. Turned out to be dirt on the sensor, thus it couldn't read the notches or whatever it does properly. Of course the garage only discovered this after he'd spent £1500 on a new abs unit plus labour! Yikes! Why didn't the shop read the code, it will tell you which
sensor is the problem? Either way, check the sensors first for sure!
Joined Feb 12, 2010
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3,232 Posts
Yikes! Why didn't the shop read the code, it will tell you which sensor is the problem? Either way, check the sensors first for sure! Don't ask! Lol
Joined Jul 20, 2009
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1,878 Posts
Discussion Starter · #6 · Apr 2, 2012
Looks like I'll be making a diagnostic appointment with the dealer then... :thumbsup:
Joined Feb 12, 2010
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3,232 Posts
Looks like I'll be making a diagnostic appointment with the dealer then... :thumbsup: Nooooooo! Go to your local garage, they should be able to do it and be half the price
Joined Dec 15, 2010
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1,812 Posts
Nooooooo! Go to your local garage, they should be able to do it and be half the price :thumbsup:
Joined Jul 20, 2009
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1,878 Posts
Discussion Starter · #9 · Apr 3, 2012
Just dropped by the local shop on the way home tonight, booked in for next Wednesday - they aren't sure if they will be able to pull the code or talk to the truck tho... Here's hoping!
Joined Dec 15, 2010
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1,812 Posts
They should definitely be able to pull the code, my $150 actron 9580 did... My favorite tool for working on any OBDII vehicle.
Joined Jul 20, 2009
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1,878 Posts
Discussion Starter · #11 · Apr 17, 2012
Just to update this thread, they read the ABS module and the code was with the O/S/F wheel sensor. Today they fitted the new sensor and the lights are off. Cost me 200 bucks though, maybe not bad including diag/sensor/labour but damn.
Joined Dec 15, 2010
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1,812 Posts
Diag and labor must be most of that, unless parts are that much more expensive in the UK. My sensor cost $40 shipped from rockauto. If its anything like here though diagnostics are $50-100. Good to hear its fixed! :thumbsup:
Joined Jul 20, 2009
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1,878 Posts
Discussion Starter · #13 · Apr 17, 2012
Diag was 50, sensor 65, rest labour. Not too bad, just bad timing with me buying cams this month!
Joined Apr 15, 2012
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4 Posts
salut ,j ai eu le meme probleme par contre moi c etait l etrier arriere qui grippai et qui m avait brulé le capteur
Joined Dec 18, 2009
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8,310 Posts
Is there a translater in the room:slapfight:
Joined Feb 12, 2010
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3,232 Posts
Is there a translater in the room:slapfight: ummmm.....non!
Joined Sep 23, 2018
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6 Posts
I had the same problem I changed the sensors out myself and they looked fine and of course the lights came back on , I've hear that wheel bearings could cause these lights to come on, if any1 has any helpful advice on this before I spend 100 a bearings that' would be great. But if not I'm out if ideas , my truck also throws no codes and it's been checked
a million times different places so I really have no choice but to keep guessing. I'm tryna sell it for a couple grand but with these lights on it's worth nothing, but also do nt want to spend more then it's worth. 🤨 so annoying