3. Check Overall Function

WARNING: This page is about a different car, the 2004 Infiniti G35. 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 60, 61, 62, 79, 80, 81 and ground with an oscilloscope.
Verify that the oscilloscope screen shows the signal wave as shown in Fig 2.
NOTE: The pulse cycle changes depending on rpm at idle.

Fig 1: Checking Overall Function
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Typical Ignition Waveform Pattern
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: INSPECTION END

NG: GO TO 10 .