Ignition Coil Power Source & Ground
- Disconnect 3-wire ignition coil connector. Turn ignition on. Check voltage between ground and terminal "B" of ignition coil connector. See Fig 1.
- If battery voltage is not present, go to IGNITION COIL/POWER TRANSISTOR RELAY test. If battery voltage is present, turn ignition off. Check continuity between ground and terminal "A" of ignition coil connector.
- If there is no continuity, repair ground circuit between ignition coil connector terminal "A" and ground. Repeat test for each remaining coil.
Courtesy of NISSAN MOTOR CO., U.S.A.