3. Check Overall Function

WARNING: This page is about a different car, the 2004 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.

Without CONSULT-II

Let engine idle.
Read the voltage signal between ECM terminals 46, 60, 61, 62, 65, 79, 80, 81 and ground with an oscilloscope.
Verify that the oscilloscope screen shows the signal wave as shown below.
NOTE: The pulse cycle changes depending on RPM at idle.

Fig 1: Check Overall Function Without CONSULT-II (1 Of 2)

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

Fig 2: Check Overall Function Without CONSULT-II (2 Of 2)

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

OK or NG

OK >> INSPECTION END

NG >> GO TO 10. CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV .