Ground Circuit Test (XG350)

Turn ignition off. Disconnect all three ignition coils 3-pin harness connectors, see Figure. Measure resistance between ground and suspect ignition coil connector terminal No. 2 (Black wire). Resistance should be one ohm or less. If resistance is not as specified, repair open or short circuit (in Black wire) between suspect ignition coil and body ground connection. For circuits identification, see WIRING DIAGRAMS article.