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>>

Refer 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>>

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
   +		-
   Connector	Terminal	Connector	Terminal
   F142	153	E152	204	Courtesy of NISSAN NORTH AMERICA, INC.
   	154
   	161
   	162
   	164
   	168

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

Is the inspection result normal?

YES>>

INSPECTION END

NO>>

Refer to Diagnosis Procedure .