how to diag a wheel speed sensor.

[birdman]

I think i have a wheel speed sensor on the fritz but im nite sure of the best way to check them out. Is there a way to monitor them in hpt? Basically i get a service vehicle soon light pretty often and occasionally ill get trac off and maybe an abs light on startup.

[GP1138]

Interested in this as well. Even after a bad wheel bearing replacement I get an ABS light almost immediately after starting to drive.

 

Also, why does this cause the power steering to get heavier?

[2k2cse]

9 times out of 10, when you have a bad WSS, you will get the service vehicle soon, trac off, and ABS light combo. That being said, its not always a bad sensor, it could just be a bad connection at the plug. My svs/trac off/abs lights come on randomly due to a weird connection at the clip on my LF.

 

@GP1138 Do you just get the abs light, or the other two as well? You might have a problem in your abs system, which could be causing your power steering to feel heavier.

[birdman]

If you have magnasteer im sure it uses vehicle speed to know when to change pressures

[2k2cse]

Thats a good point. I didn't think about that.

[AL]

Only way to check it is to have a shop pull the codes

[birdman]

Will hpt be able to do this? Or is that out of it's capabilitys? And would it have to be a shop or do auto parts stores have a scanner for that?

[White93z34]

IIRC hpt can do it

[AL]

I would think it would be able to pull abs codes

[birdman]

Ok would it show up with the other codes or would i have to monitor them to see which one was acting up?

[AL]

Should be in history codes or stored codes, but monitoring them sure doesnt hurt