Ignition Coil Power Source
- Turn ignition on. Using voltmeter, check voltage between terminal "B" and ground of ignition coil plug. See Fig 1. Battery voltage should exist.
- If battery voltage is not present, check power transistor relay. If battery voltage was present, turn ignition off. With an ohmmeter, check continuity between terminal "A" and ground. See Fig 1. Continuity should exist. Repair harness or connector if no continuity is present.