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ABS DASH LIGHT
Still have brakes but ABS light illuminated. Replaced R49 & R52 relays with no change. any idea where to start troubleshooting ?
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4 Replies
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You have a sensor on each wheel with 2 wires, possible bad sensor or broken wire ,need to drive 5 to 10 mph for system to self check, if good light will go out .
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I have a nexiq reader with DDEC V, Allison transmission and ABS brake system software. I took quite a while searching ebay until I found the reader with the needed software, but the $1000 it cost was money well spent. I have isolated several issues when I got the CEL (check engine light) and was able to zero in on the needed repair.
My only ABS light was determined by the reader to be the RH drive axle sensor and a light tap on it to bring it closer to the ability to get a reading was all it took. If it is a failed sensor an OHM meter reading will tell you if it is within specs. The value is on line, but it is so long since I looked it up I forgot where. The Prevost web site has manuals for purchased systems listed and that is likely where you can find details.
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Tried the drive , nothing changed. Thanks
Steve Magown
2001 Featherlite H3
West Monroe, LA -
Tks Jon. Will try that & see if it changes.
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