JC12 - Check For C3 Low at Coil Connector - Coil Disconnected

- Key On, Engine Off.

- Measure voltage between (+)J10 (C3C) and (-)J7 (B-) at breakout box.

- Is DC voltage reading less than 0.5 volts?

YES -- Go to JC13. JC13 - Check C1 at Coil Connector While Cranking Engine

NO -- C3 high fault. Go to JC24. JC24 - Check For C3 Low - ICM and Coil Disconnected