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Old 06-04-2023, 09:27 AM   #1
Junior Member
Join Date: May 2022
Posts: 7
Question Abs fault

2007 DS4023

During our recent trip, we started getting this ABS FAULT when starting the engine. Rotating through the options silenced the audible alarm but the ABS light remained lit. Other than the alarm, I noticed no problems with braking.

I have searched the manual and internet for a cause and solution but without success.

I have an appointment with Jacksonville, FL Cummins (they are also the local Spartan contact) this Thursday for yearly maintenance. The Cummins maintenance rep said they will look into it but didnít sound confident and couldnít give any possible reasons or an estimate for the labor/parts.

I want to be as well-informed as possible when talking to them.

If you have had experience with this issue and can offer insight I would greatly appreciate it. Thanks!
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Old 06-04-2023, 10:39 AM   #2
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Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 30,462
The ABS light being on isn't an indication of an issue with the service brakes ; only that you have no ABS braking function .

This can be an issue with a bad wheel speed sensor , the sensor wiring or even an internal issue with the ABS control module .
Without a diagnosis , from a special read out tool , the shop can't narrow the problem down , and won't be able to provide any kind of estimate of repair cost.

Ask for an estimate on the repair as soon as the diagnosis is complete.
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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Old 06-04-2023, 03:02 PM   #3
"Formerly Diplomat Don"
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Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 23,091
On my 2005 Monaco Diplomat, the ABS sensor was on the wheels. We were forced, during road construction, to drive through a muddy road. That was enough to cause the sensor to malfunction. We stopped and I crawled under and rinsed off the wheels. Tha cleared the problem.

Newer models read the ABS differently, but yours may have exposed sensors. Have you traveled through any snow or dirty/muddy conditions.
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
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Old 06-05-2023, 04:23 AM   #4
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Thanks for the replies! This confirms information I got from a few other people on FB.
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