IGNITION SIGNAL

Component Function Check

1.Inspection START
Turn ignition switch OFF, and restart engine.
Does the engine start?
YES-1 >> With CONSULT-III: GO TO 2.
YES-2 >> Without CONSULT-III: GO TO 3.
NO >> Go to See: Diagnosis Procedure.
2.CHECK IGNITION SIGNAL FUNCTION
With CONSULT-III

1. Perform "POWER BALANCE" in "ACTIVE TEST" mode with CONSULT-III.
2. Check that each circuit produces a momentary engine speed drop. Is the Inspection result normal?

YES >> Inspection END
NO >> Go to See: Diagnosis Procedure.
3.CHECK IGNITION SIGNAL FUNCTION
Without CONSULT-III

1. Let engine idle.

2. Read the voltage signal between ECM harness connector terminals with an oscilloscope.