A8 Test LH Front ABS Sensor Input

- Connect Rotunda New Generation Star (NGS) Tester 007-00500 or equivalent.

- Select PID LF_WSPD.

- Drive vehicle and note PID.

- Is PID active?

YES -- System operational. Clear codes. Restore vehicle. Retest system.

NO -- Replace ABS module. Restore vehicle. Retest system.