Abs pain in the

I got this taco 05 we trying to get the abs light off on biggest pain in the ass the diagnosis tester says no detection from right rear obviously switched out señors and everything possible Main computer abs modual resr diff since it was not stock. All the electrical is stock btw. That's what they have done . The wiring harness is stock but this vechicle is salvaged the left side was smashed and rebuilt turned into a prerunner. Well I tried to help I started off by checking the wiring harness all the way up to the dash with a hardware from the señor. Next step is right to the abs mod but I don't thibk that's it the wiring looks fine but gotta rule out one thing after the next. Anyone have any thought on what it could be the brake light is also on . It's a tuff on some of the best Toyota techs haven't figured it out and don't really have the cash to keep trying stuff

 

Remove the RR sensor, and confirm with a light through the hole that there is a "tone ring" AKA "reluctor wheel" inside on the axleshaft, and that it spins with the axleshaft.

 

Thread title should have been "Pain in the ABS". You missed a golden opportunity

 

We switched the entire rear end because it had a aftermarket abs forsure all works came
Off a running truck

 

Cant get the title because brake and light inspection and smog required this has been over a year problem

 

If the truck was once a 4WD that could have something to do with it. I know on the trucks with the rear locker when the locker is engaged and the truck is in low range the ABS/Brake lights come on automatically. The ECU might be looking for a signal from something that is no longer there. I suggest you learn how to read electrical diagrams, get yourself a circuit tester, and start hunting. I've brought lots of stuff back from the dead over the years but never would I attempt to do something like that with a modern vehicle. Too many possibilities for nightmares like this.

 

Figured it out guys plug for abs mod isn't workihn right