Hi,

I have a 2001 Lexus IS300 and the ABS light and Trac off light are continuously on.

I first had the P0161 code, so I replaced the O2 sensor and the code went away.

Then I had the P0505 code, so I cleaned the throttle body and the code went away.

I thought replacing the O2 sensor would remove the trac off and abs light but it didn't.

Does any have any other suggestions? Is it possible that my abs sensors could require replacing?

Thanks.

 

you might have to change the Abs sensor. i hade the same problem, front passenger side had to be changed.

 

Unfortunately, there are a lot of potential causes... need to obtain a scanner that is capable of pulling ABS codes and go from there...