4. Check MAF Sensor Power Supply Circuit

1. Disconnect mass air flow (MAF) sensor harness connector.
2. Turn ignition switch ON.
3. Check voltage between MAF sensor terminals 2, 4 and ground with CONSULT-II or tester.

Fig 1: Checking voltage between MAF sensor terminals 2, 4 & ground

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

OK or NG 

OK: GO TO 6. CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT .

NG: GO TO 5.

Fig 2: Checking voltage between MAF sensor terminals 2, 4 & ground

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