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Old 12-17-2010, 06:54 PM   #15
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Scroll down this link and ABS sensor will be pictured. Will be 4 one each wheel.
If when you pull it out of socket looks dirty as pictured clean it up both sensor and socket. Follow instructions in link.
Once you have that done all you need to do is drive coach a few miles and sensors control should reset and ABS light will go off.
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Old 12-20-2010, 07:25 AM   #16
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My ABS light went on last summer while driving in the rain. Finally had it checked at Freightliner and it turned out to be the fuse for the ABS. Simple fix. Maybe check that first.
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Old 12-20-2010, 05:58 PM   #17
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Testing ABS Sensors

You can test the wheel sensors, you will need a OHM meter. They should be between 900 to 2000 OHMs, if they are open they are bad or out of this range. Follow the wire back to the connector and test the sensor. Wabco has a sight on the internet that will explain this if needed. If the sensors test ok you will need a shop with the software and laptop to do anymore trouble shooting. Hope this helps.
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Old 12-20-2010, 06:04 PM   #18
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I forgot to tell you check for loose wheel bearings, this will also cause a ABS lite to come on!!!
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Old 10-04-2011, 01:06 PM   #19
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I have an 2003 extremely well maintained Holiday Rambler. We got it 11 months ago, October 2010. Recently I went to a dealership I had heard lots of good things from the previous owner of my RV. I drove all the way to Elkhart IN. to have the Collision Center to have a look. My batteries were going down after 10 days of being parked. They said the "Maintainer" was only wired up as "single directional." They added a wire to make it "multi directional" saying it was now sending a charge to both house & chassis batteries. When I pulled away from their door the ABS light came on after 150'. It had never, ever been on before this. They decided that "they were 95% sure the ABS module was bad" and that "after clearing the code, it would not allow a new code to be installed now." They asked "$2400 + extra for labor to put in the module" and "have a Cummins Rep to install the new code to get it synced" We could not stay that long and had to go back home for doctors appointments 2 days later. They removed the ABS bulb in the dash so it would not bother the driver on the way back home. Once we got home and tried to locate a dealer to fix it, I began hearing many different things like.... these units are known to seldom ever go bad or the wheel sensors need to be cleaned etc. I'd hate to spend that much $ and it not be our problem. I'd like to ask if anyone has heard of this situation before, what to do about it & who would be a good choice to repair my new ABS promlem? Any info or advice would be much appreciated.


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Old 10-04-2011, 01:16 PM   #20
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You need to find someone that has the Meritor or Bendix brake system software and let them hook it up to your coach. It works all the relays and and lites. No guess work. If they don't have the software and computer, they are guessing.In fact, you can drive it down the street and monitor it. The reason they wanted the Cummins Rep to sync it, which he can't, is he has the dongle ,which works with Cunmmins Insite, and also works the Allison Trans and ABS system IF he has the software. If the problem is fixed,like replacing sensor, it resets itself. There is no SYNC. Go down to your nearest Firehouse and I bet they have the comp and software, and grease them a few bucks to hook it up and see whats wrong. After two months screwing with Spartan over a $2500 rotor I finally replaced my own tone ring on my hub for $8.99.
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Old 10-04-2011, 02:41 PM   #21
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ABS light stays on

I'll go with the idea that you need to clean sensors. I had the same problem, cleaned each sensor(easy enough) drove down the road a bit and light went off. Everything is OK now. I believe that a dirty sensor is a common problem considering where they are located.
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