My 2001 XK8 has the ACS/TRAC error light on. I read that this may be the result of a bad ABS controller module problem but that it could also be a result of dirty wheel speed sensors. I removed, cleaned, and reinstalled the front wheel sensors (they were not very dirty), being careful not to get any fluid on the contacts. Easy job.
Now … the speedometer is no longer working, nor is the odometer. It lights up but does not register mileage when I drive. (I also get “Low Brake Fluid” and “Incorrect Part Fitted” warnings). The ABS controller module needs to be replaced (one of the pins is broken off) but the odometer and speedometer were working fine.
Can this be a result of a bad wheel speed sensor, or harness, or both? What the heck did I do wrong!? The rest of the car seems fine… (famous last words).
Thanks for any suggestions.