Operation CHARM: Car repair manuals for everyone.

Q1 Check For Fault Repeatability

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

- Drive vehicle briefly over 6 km/h (4 mph). Perform hard brake application

- If amber ABS warning lamp turns on, pull diagnostic trouble codes using Rotunda New Generation Star (NGS) Tester 007-00500.

- Is code C1238 obtained?

YES -- Closed reset switch concern is repeatable. Key Off. Go to Q2.

NO -- Reset switch concern is intermittent. Key Off. Go to Q4.