67-3: Check Pump Trigger Circuit For Short to Ground

- Ignition switch OFF.

- Install Rotunda Breakout Box 014-00322 or equivalent and T90P-50-ALA adapter.

- Check for continuity between breakout box pins 15 and 60.

- Is there continuity?

YES -- Service short to ground on circuit 539 (PK/LB) from pump motor relay to anti-lock brake control module pin 15.

NO -- Go to 67-4. 67-4: Check For Repeatability of Failure