I was working on my car the other day I changed the LCA’s and the ball joints. In the process of trying to get my hub off I tried to take the wheel speed sensor out of the hub and broke it. So I ended up getting a new wheels speed sensor and replacing my old one. I rode for 2 days no abs light. I was driving down the interstate the 3 day after the repairs and my abs and vsa lights are on and won’t go off. I had the abs scanned it’s telling me “Right pulsar malfunction” was wondering if anyone else had this problem, if so how’d you fix it.

 

If you used aftermarket parts this may be your problem

 

And / or incorrectly installed may be the problem.
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I'm having the same issue... There's days the VSA and ABS light comes on and off when I start my car up... One day when I started up, no indicators was lit up but then I noticed it comes on when I press brake while driving... any help well be appreciated....

 

You need a scan tool to retrieve codes (if any) and check what speed each wheel is reading.

 

I've tried different scan tool. Every one I used gave me an 02 sensor reading.

 

You need a scan tool that can communicate with VSA/ABS module, not only a "code reader". $10 ebay bluetooth plug won't do it.
Simple scan tools that allow for that probably start ~$100, bi directional scan tool probably starts ~$800.