Component Function Check

Turn ignition switch OFF, and restart engine.

Does the engine start? 

YES-1: With CONSULT-III: GO TO 2.

YES-2: Without CONSULT-III: GO TO  3.

NO: Go to "DIAGNOSIS PROCEDURE ".

With CONSULT-III 

1. Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT-III.
2. Make sure that each circuit produces a momentary engine speed drop.

Is the inspection result normal? 

YES: INSPECTION END

NO: Go to "DIAGNOSIS PROCEDURE ".

Without CONSULT-III 

1. Let engine idle.
2. Read the voltage signal between ECM harness connector and ground.
   VOLTAGE REFERENCE CHART
   
   

   ECM		Ground	Voltage signal
   Connector	Terminal
   F10	17	Ground	Courtesy of NISSAN MOTOR CO., U.S.A.
   	18
   	21
   	22

   Fig 1: Checking Voltage Signal Between ECM Harness Connector And Ground

   Courtesy of NISSAN MOTOR CO., U.S.A.
   NOTE: The pulse cycle changes depending on RPM at idle.

   Is the inspection result normal? 

   YES: INSPECTION END

   NO: Go to "DIAGNOSIS PROCEDURE ".