my abs inop light comes on every now and then. ive checked the sensors behind the wheel and there good. whats the probelm

 

check to see if both of your 3rd brake lights come on when you press the brake. If not, change them, that fixed my problem.

 

if you have ever blow a rear end up metal shavings can get in the sensor on the top of the housing and make your abs work at random. I had to get a new sensor.

 

Check for loose grounds on the ground post on the passenger fender right by the positive post. It's the one right behind the battery. Theres ground wires, then a nut, then more wires, then another nut. My bottom nut came loose and kicked on my light. Basically a poor ground.

Ken R.

 

Differences in tire pressure caused my light to come on.

 

It was the ground wire on My pass side wheel well by the battery was just a little loose.

I want to thank you for this thread. My ABS Inop light is out, and it is running much better. I was also showing a P0138 High voltage O2 bank 1 Sensor 2, but that could still come back on me.

Thank you again.