I'm trying to get a speed sensor set up on a front wheel on my '91 for traction control. I will be using a hall-effect sensor, but I'd like to know how the factory routed the wiring on the original ABS sensor. Does anyone have a picture of how this works?

Bonus - if anyone has an ABS tone ring (the part that mounts behind the front wheel hub) I'd be happy to buy it off of them.

 

This is from the '91 TII I have sitting in the pole shed, minus eng/trans. Large, but the wiring coming in from R/F wheel rear of shock tower, then goes forward over R/F fender through white clip, over a/c line into large wiring harness, then to front across radiator, up left side.
Last photo, loop is the L/F sensor going into the wiring harness, then into the firewall.

Hopefully this will help, need anything, reach out.

 

That's exactly what I needed! Thanks for the quick reply.

 

Do you have pictures of where it mounts to the wheel hub? From the FSM it looks like it mounts through the caliper mounting bracket, but mine don't have a hole and I don't show a different part number for the ABS equipped cars.

 

Easy, when I got the '91TII back in 2000, I didn't want the car to rest on the suspension, so I removed it and placed it under the car.
As you can see, the sensor goes through the knuckle:

 

Thank again! Looks like a custom bracket is in my future.

 

Going to be a job as the sensor spec is only .4-1.0mm clearance.

 

I'm going to be using a threaded hall effect sensor and a custom trigger wheel vs the factory ABS tone ring, I was hoping I could reuse some of the factory stuff, but that looks like a no go. Now to see how expensive its going to be to get that trigger wheel made... Going to take the hub to a machine shop sometime this week to see what they can come up with. I really hope the traction control on my megasquirt is worth all of this trouble.

 

Looks like you're way ahead of me!