A15 - Check IGN GND at ICM - Processor Disconnected

^ Key off.

^ DVOM on 2K ohm scale.

^ Measure resistance between J47 (IGN GND I) and J7 (B-) at breakout box.

^ Is resistance less than 1050 ohms?

YES -- GO to A16. A16 - Check IGN GND to Processor Continuity - Key Off

NO -- GO to A17. A17 - Check PWR GND to ICM - PWR GND Fault