Abs light stays on trailer.

Sometimes you have to road test it so it can read wheel speed again to make the code go inactive.

 

Well, I dealt with a pretty long abs issue recently. But mine was for voltage low or shorted to ground. After tracing every bit of wire, underneath the wire loom, I found no real grounding out problem. Bought a cheap abs module/computer New of eBay, was new Wabco but it had the wrong configuration. But my original code cleared and the new code was for sensors I didn't have because of the wrong computer configuration.

Which lead me to the conclusion my abs computer was internally shorted. I finally soured a new one (2000 volvo) , and that was all she wrote...

But you have an open circuit on the trailer side... hmmm

 

We don't work on trailer abs, but I would double check your circuit right at the main connector at the abs ECU. Make sure you using the proper test terminals so you don't deform a pin and cause more problems. Most ABS wheel speed sensors have a ohm range of 900 to 2400 ohms. They should also be completely open to ground and other circuits.

 

Hey Xserta if you run the wabco frame mount D version, I have a spare I could sell you for next to nothing. It's a 6s/6m

It's brand new