N1 Check For Fault Repeatability

- Clear all diagnostic trouble codes with the Rotunda New Generation Star (NGS) Tester 007-00500.

- Drive the vehicle at least 16 km/h (10 mph).

- Pull diagnostic trouble codes with the Rotunda New Generation Star (NGS) Tester 007-00500.

- Is Code C1230 obtained?

YES -- Open rear axle speed sensor fault is repeatable. Go to N2.

NO -- Rear axle speed sensor concern is intermittent. Key Off. Go to N6.