View Full Version : anti lock brake light

06-25-2008, 10:02 PM
The idiot light on the dash has been glowing for a while. My dealership changed the rotors and calipers, stating that the error messsage showed no rotation of the front wheels at the brake sensor. They thought the sensors might be bad. No good. They feel it is a bad wire somewhere in the chassis. Finding it could cost a bundle. Any ideas?

06-26-2008, 09:41 AM
From your post I intuit that the brake light is on?
I need a little more information.
What model/type of coach.
What engine.
What specific problem.

One thing you can try is to reset the computer. Most Auto stores will loan you a diagnostic machine that will read the engine computer codes, and reset them. That way you will know if there is an actual problem, or a computer than requires rebooting.

06-26-2008, 11:00 PM
I have a 2005 sunvoyager trio, vortec 8100 on a workhorse chassis, allison trans. The workhorse dealership had the coach for several weeks. besides the anti lock brake light being on, I also have an electrical problem. The house batteries do not charge while the engine is running, even though putting a volt meter on them shows 13.4 volts while the engine runs. While plugged to shore power, I have the same problem. I just put new batteries in 6 months ago to try and solve this problem orriginally. If I just leave everything turned off,(the main kill switch) with the batteries connected (i've installed a manual cut off switch) both batteries would be completely drained in a few days. I wasn't going to let this ruin my planned trip, so I just dealt with it on a recent trip cross country. Now it's back to the shop. I was hoping to have something intelligent to suggest to them, since they seem baffeled.

06-26-2008, 11:12 PM
Ok, should read 14 to 14.4 volts when the alternator is charging.
Sounds like a new alternator or regulator is in order.
Would recommend that you have the charging system checked, including putting a load on the system to see if the alternator can adapt.