Without CONSULT-II

1. Let engine idle.
2. Read the voltage signal between ECM terminals 60, 61, 62, 79, 80, 81 and ground with an oscilloscope.
3. Verify that the oscilloscope screen shows the signal wave as shown below.
   Fig 1: Verify That The Oscilloscope Screen Shows The Signal Wave

   Courtesy of NISSAN MOTOR CO., U.S.A.
   Fig 2: Checking Voltage

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

OK or NG 

1. OK : INSPECTION END 
2. NG : GO TO 10.