PC3

- Observe ABS warning light on dash.

- Turn ignition to ON.

- Does ABS warning light come on?

YES -- light flashes. Diagnostic circuit grounded. Correct condition.

YES -- And stays on for 3 seconds then goes out (normal bulb prove-out). Go to PC6. PC6

YES -- Comes on and stays on (hard light). Go to PC4. PC4

NO -- Go to PC7. PC7