Component Function Check

Turn ignition switch OFF, and restart engine.

Does the engine start?

YES-1>>

With CONSULT : GO TO 2.

YES-2>>

Without CONSULT : GO TO 3.

NO>>

Go to Refer to Diagnosis Procedure .

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

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Go to Refer to Diagnosis Procedure .

1. Let engine idle.
2. Read the voltage signal between ECM harness connector terminals under the following conditions with an oscilloscope.

   ECM					Voltage signal
   Cylinder	+		-
   	Connector	Terminal	Connector	Terminal
   1	F92	95	E20	152	Courtesy of NISSAN NORTH AMERICA, INC.
   2		91
   3		92
   4		104
   5		102
   6		94
   7		105
   8		101

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

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Go to Refer to Diagnosis Procedure .