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. Check 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 terminals under the following conditions with an oscilloscope.
   VOLTAGE SPECIFICATION
   
   

   ECM					Voltage signal
   Cylinder	+		-
   	Connector	Terminal	Connector	Terminal
   1	F111	12	E80	175	Courtesy of NISSAN MOTOR CO., U.S.A.
   2		13
   3		14
   4		15
   5		17
   6		18
   7		19
   8		20

   NOTE: The pulse cycle changes depending on RPM at idle.

   Is the inspection result normal? 

   YES: INSPECTION END

   NO: Go to "DIAGNOSIS PROCEDURE ".