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 163, 166 and ground with CONSULT-II or tester.
   Fig 1: Checking Voltage Between ECM Terminals 163, 166 & Ground

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

   Voltage: Battery voltage 

OK or NG 

1. OK: GO TO 5.
2. NG: GO TO POWER SUPPLY AND GROUND CIRCUIT .