October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Diagnostic Test

INSPECTION START

Turn ignition switch OFF, and restart engine.

Does the engine start?

YES-1

With CONSULT: GO TO STEP 2 .

YES-2

Without CONSULT: GO TO STEP 3 .

NO

Go to DIAGNOSIS PROCEDURE .

CHECK IGNITION SIGNAL FUNCTION

WITH CONSULT
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 DIAGNOSIS PROCEDURE .

CHECK IGNITION SIGNAL FUNCTION

WITHOUT CONSULT

Let engine idle.

Read the voltage signal between ECM harness connector terminals under the following conditions with an oscilloscope.

ECM					Voltage signal
Cylinder	+		-
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 DIAGNOSIS PROCEDURE .