have an 07 3.5 M6, I put on G37S 19's staggered wheels on the car.

No fit or rubbing issues but while doing a test drive the Key, VDC OFF, SLIP, ABS and Brake indicator lights all tuned on and the speedometer stopped working, RPM's still works.. car seems to run fine otherwise.. from some searching I've found that these are symptoms of a faulty abs module, now my question is did the change in size of the rims (going from 17s to 19s) effect the abs module, caused it to mess up or is it just coincidence? was i suppose to do anything prior to changing the rims?

will putting the stock rims back correct the issue perhaps? had that thought just don't want to go though the whole process if it won't do anything.

anyone know what the cost of replacing a abs module is roughly?

thanks!