CA12 Wiring Harness/STO Short to Ground Check

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

^ Is ohmmeter reading greater than 10,000 ohms?

YES -- Go to CA13.

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