3. Check Injector Power Supply Circuit

1. Turn ignition switch OFF.
2. Disconnect harness connectors F21, F201 (bank 1) and harness connectors F41, F221 (bank 2).
   Fig 1: Locating F21, F201, F41 & F221 Harness Connectors

   Courtesy of NISSAN MOTOR CO., U.S.A.
3. Turn ignition switch ON.
4. Check voltage between the following;

   Harness connector F21 terminal 5 and ground,

   Harness connector F41 terminal 5 and ground

   with CONSULT-II or tester.

   1. Voltage: Battery voltage 

Fig 2: Checking Voltage Between F41 Terminal 5 (Bank 2) & Ground & F21 Terminal 5 (Bank 1) & Ground

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

OK or NG 

OK: GO TO 5.

NG: GO TO 4.