AA9 Wiring Harness/STO Short to Ground Check

^ Using an analog ohmmeter place one lead in wiring harness connector (for air control module) Pin 15 (Circuit 419A) and other to Pin 40 (Circuit 430G).

^ Is ohmmeter reading greater than 10,000 ohms?

YES -- Go to AA10.

NO -- Service short to ground in STO Circuit 419A.