Lately I have been getting an occasional flickering ASC light when turning right (only right). Not always, infrequently. The car has had a two year history of ABS lights; I have replaced all sensors; the ABS light usually goes out after restarting and driving forward; but often resets when crossing underground power lines, (like the sensor grid at our gated community), usually during right hand turns, never left hand turns. Both the ABS light and the new, flickering ASC light only occur when the pavement is extremely hot (guessing that heat adds to the magnetism in underground cables effecting the Hall Effect). Not sure why this ASC flicker is occurring and which wheel is offending.

I am trying to figure out if my Actron CP9670 will read C codes . . . to find the offending wheel. Apparently not right/rear (speedometer works).

Thoughts?

 

Without communicating with the ABS module, we are all guessing.

MY GUESS will be one of the front axle wheel speed sensor 'link-harnesses'. (just a guess)

 

I'll start there. Thanks. Apparently the OBD reader can't read C codes.

 

Some readers will communicate with ALL modules and inexpensive one's will only read 'P' codes.
After working at the dealer I duplicated all the diagnostics I could.
I use WDS and IDS for all DTCs. (P,B,C, and U codes)

'Throwing-parts' at a fault can get expensive. Diagnosis is usually more cost effective but some people insist on blindly replacing EVERYTING. ('shotgun-approach')