Diagnostic Test

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 .

With CONSULT 

1. Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT.
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

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

   ECM				Voltage signal
   +		-
   Connector	Terminal	Connector	Terminal
   F101	11	M107	128	Courtesy of NISSAN NORTH AMERICA, INC.
   	12
   	15
   	16
   	19
   	20

   NOTE:

   The pulse cycle changes depending on RPM at idle.

Is the inspection result normal?

YES 

INSPECTION END

NO 

Go to DIAGNOSIS PROCEDURE .