ABS Brake Default

Question

This subject probably should be directed at Doug Grainer who appears to be quite knowledgeable in many areas (I've noticed a lot with Newmar). I stored my rig in a climate controlled underground facility from the beginning of October until this past Wednesday when I brought it home. I usually stop by the cave twice during the winter months to go through the systems, this year because of family health issues I did not get to stop in. The batteries were completely drained, needing to jump the chassis batteries for ten minutes before they would keep the engine running, I fast idled for 20 minutes before leaving. When I released the parking brake the ABS light came on and an alarm started whistling, a message came on that read "ABS BRAKE DEFAULT". Now, the rig drove as normal getting out of the cave, so I drove a couple of miles and stopped, pulled the e brake button on and then off thinking it may reset, it did not. I decided to continue the trip home after I pressed the toggle button on the readout that stopped the alarm, but the ABS light remains on. After I got home and shut the rig down, I started it hoping the light would reset, it did not.
Any thoughts on what may be going on here?

kayteg1 · Answer

ABS very often is the first system that will act with low voltage, so reading the story you have good chance that there is nothing wrong with the system itself.
Best advise would be get scanner capable of reading ABS, read the code, clear it and take the coach for test drive.
If I am correct, the light will go off after some driving cycles, what on my car was like 8 engine restarts, but the code will be stored in vehicle memory till you clear it with scanner.

crasster · Answer

Drive it a bit.  See what happens.  Drive 20-30 miles... Use the brakes some.

johnsonbert · Answer

On an 01 Ambassador we had, we had problems with the wheel bearings not being torqued correctly and it would change the sensor gap.  The reset fix was shut it off, push all the sensors in tight and restart and drive for 1 to 5 miles. Usually it reset in just over a mile.  The reset process involved shutting it off, then restarting and driving it to reset the ABS and shut off the light. Hope this will help on yours.  Happy Trails, Bert

j-rooster · Answer

When my ABS light came on I was driving down White Pass! After I returned home from my trip, I took my coach in and had it fixed. What caused the problem in my case was brake overheating.

11178adm · Answer

if you have a Bendix system and can locate the control module there is a series of lights on the end that are labeled to identify the component and location  example would be sensor light and lf light  would indicate left front sensor.  once the problem is corrected  Bendix  system codes can be cleared by running  a magnet  across the end of the modules where the lights are.  if you have a wabco system you need  a code reader.  also with either system you should be able to hear the solinoids cycle  at key on

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