4. Check Ignition Coil Power Supply Circuit-I

1. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
2. Check voltage between ECM terminals 119, 120 and ground with CONSULT-II or tester.
   1. Voltage: Battery voltage 

OK or NG 

1. OK : GO TO 5.
2. NG : Go to "POWER SUPPLY CIRCUIT FOR ECM "

Fig 1: Check Ignition Coil Power Supply Circuit-I

Courtesy of NISSAN MOTOR CO., U.S.A.