Toyota
Nissan Versa
 Sedan Service Manual
Engine » Engine control system (EC) » Ignition signal
Component Function Check

1.INSPECTION START

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 EC, "Diagnosis Procedure".

2.IGNITION SIGNAL FUNCTION

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 EC, "Diagnosis Procedure".

3.IGNITION SIGNAL FUNCTION

Without CONSULT

  1. Let engine idle.
  2. Check the voltage signal between ECM harness connector and ground with an oscilloscope. 

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

Is the inspection result normal?

YES >> INSPECTION END

NO >> Go to EC, "Diagnosis Procedure".

    More about «Ignition signal»:

    Component Function Check

    Diagnosis Procedure

    Component Inspection (Ignition Coil with Power Transistor)

    Nissan Versa Sedan Service Manual / Engine / Engine control system (EC) / Ignition signal / Component Function Check

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