My ABS light has been on for years. That really isn't an issue because I drove for years without ABS but I got the bug to fix the problem.

Digging through the maintenance records, I found a receipt from around the time that the ABS light first came on. I had asked the mechanic to look into the problem. The note on the receipt said that the right rear ABS sensor was bad.

So my first step was to pull the sensor and clean it. No joy.

Then I bought a supposedly good sensor but used sensor on Ebay and installed it.

Now the problem has changed. It used to be that I would drive a mile before the ABS light came on. Now the light comes on as soon as the car starts rolling.

Any thoughts?

 

Check the codes again......what was the resistance on the old sensor?...not sure which (drivers/pass) you replaced.

 

right rear. so passenger side rear.

 

Check the codes again, could be a new one.......or the same that is something other than the sensor (connetion, wiring, ect). That is why I ask about the resistance reading of the old one.