Operation CHARM: Car repair manuals for everyone.

Component Function Check





IGNITION SIGNAL


Component Function Check

Regarding Wiring Diagram information, Electrical Diagrams.
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 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 Diagnosis Procedure.
3.CHECK IGNITION SIGNAL FUNCTION
Without CONSULT-III
1. Let engine idle.





2. Read the voltage signal between ECM harness connectors.





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

Is the inspection result normal?
YES - INSPECTION END
NO - Go to Diagnosis Procedure.