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.
   TERMINALS VOLTAGE REFERENCE
   
   

   ECM		Ground	Voltage signal
   Connector	Terminal
   F14	9	Ground	Courtesy of NISSAN MOTOR CO., U.S.A.
   	10
   	11
   	21

   Fig 1: Checking Voltage Signal Between ECM Connector Terminals 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 ".