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Component Function Check
1.INSPECTION START
Turn ignition switch OFF, and restart engine.
Does the engine start?
-1With M.U.T.-III SE: .
-2Without M.U.T.-III SE: .
Refer to Diagnosis ProcedureDTC Diagnosis Procedure.
 
2.CHECK IGNITION SIGNAL FUNCTION
With M.U.T.-III SE
  1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with M.U.T.-III SE.
  2. Check that each circuit produces a momentary engine speed drop.
Is the inspection result normal?
INSPECTION END
Refer to Diagnosis ProcedureDTC Diagnosis Procedure.
 
3.CHECK IGNITION SIGNAL FUNCTION
Without M.U.T.-III SE
  1. Let engine idle.
  2. Read the voltage signal between ECM harness connector terminals with an oscilloscope.
    ECMVoltage signal
    +–
    ConnectorTerminalConnectorTerminal
    F5135E16160
    44
    33
    36
    noteThe pulse cycle changes depending on rpm at idle.
Is the inspection result normal?
INSPECTION END
Refer to Diagnosis ProcedureDTC Diagnosis Procedure.