Foretravel Owners' Forum

Foretravel Motorhome Forums => Foretravel Tech Talk => Topic started by: RKs02U320 on July 18, 2025, 10:36:23 am

Title: U320 ABS Control
Post by: RKs02U320 on July 18, 2025, 10:36:23 am
Trying to see if I can fix ABS light always on in my dash.  The tag axle sensors were both hanging down and dragging the ground. I have replacements from Foretravel but in chasing the wires down I cannot follow them far enough to find the control box, that is where I assume the other end of these sensor cables end. 

2002 U320 with tag, trying to locate the ABS control module, any direction would be appreciated. 

Title: Re: U320 ABS Control
Post by: Michelle on July 18, 2025, 01:26:51 pm
In our '03 it was the back wall of the compartment with the HWH controls/compressor

Resetting ABS Brain (https://www.irvblog.com/foretravel%20projects/ABS-Reset/)
Title: Re: U320 ABS Control
Post by: red tractor on July 18, 2025, 04:28:07 pm
There should be a plug not to far from where the sensor is and you can unplug there and plug in the new ones.
Title: Re: U320 ABS Control
Post by: RKs02U320 on July 19, 2025, 10:20:55 am
There should be a plug not to far from where the sensor is and you can unplug there and plug in the new ones.

The cables are 10-12' long with no end or plug in sight as it snakes up into/over the wet bay and disappears.   
Title: Re: U320 ABS Control
Post by: RKs02U320 on July 19, 2025, 10:22:09 am
In our '03 it was the back wall of the compartment with the HWH controls/compressor

Resetting ABS Brain (https://www.irvblog.com/foretravel%20projects/ABS-Reset/)

Thank you!  I will look for the control box there, I appreciate the help.  I didn't know what is looks like either so now I have a solid starting point. 
Title: Re: U320 ABS Control
Post by: DaBus on July 19, 2025, 10:34:50 am
Ours is a s Michelle said.  Compressor/Inverter bay, far inside wall on upper left.
Title: Re: U320 ABS Control
Post by: SuperFore on July 19, 2025, 01:08:35 pm
Ours is a s Michelle said.  Compressor/Inverter bay, far inside wall on upper left.
On my 2000 it is in the front center forward most full compartment on the ceiling near the inverter.

Think I found every hidden box/controller on my coach searching for the Allison ECU(TCU) 🤣
Title: Re: U320 ABS Control
Post by: Michelle on July 19, 2025, 02:47:56 pm
Think I found every hidden box/controller on my coach searching for the Allison ECU(TCU) 🤣

I vaguely recall that's sometimes in the manibloc bay or the LP bay  ;)
Title: Re: U320 ABS Control
Post by: SuperFore on July 20, 2025, 10:14:06 am
I vaguely recall that's sometimes in the manibloc bay or the LP bay  ;)
I did find it after a day of searching - center ceiling of rear most bay (so just ahead of water/magnibloc) - its about as close to the trans as possible... interesting fact, my coach doesn't have a VIM but direct connections to anything it interfaces with and it's own diagnostic port under the dash...I'm going to write this story up.
Title: Re: U320 ABS Control
Post by: WS6_Keith on July 21, 2025, 06:47:58 am
Look for a silver box that says WABCO on it. You can just see it on the far left of this picture.