Hi all, I just got my 2003 s2k a month or so ago and have been trying my best to make sure to make the car runs as smoothly as possible. Since I bought the car the ABS light would come on sporadically and turn off whenever it wanted, but a few days ago the ABS light came on and has been constantly lit. After reading through the forums I pulled the codes by jumping the DLC and got codes 15 and 81. From what I could find code 15 means a right-rear wheel sensor short and code 81 means an issue with the ABS CPU(?).

I am not really proficient at working on cars but I am learning slowly but surely and was hoping someone could point me in the right direction so I could attempt to fix this issue myself. Perhaps learn a few things as well

 

Bump

 

https://www.s2ki.com/s2000/topic/808...-speed-sensor/
http://www.popularmechanics.com/cars...enance/2265091

You can try checking the impedance with a multimeter. I don't know what the normal impedance is on a sensor. You can always compare it to the other side.

 

Thanks for the links, at least now I have somewhere to start from. Now I just have to try and find a friend with a functional multimeter because mine is taking a dirt nap.

 

For code 81...

Clear the DTC. Then test-drive the vehicle.

If the light does not come back on with the same code its an intermittent failure and its okay.

If it does come back on , you need to replace the ABS modulator