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HOMESERVICE MANUALSINFINITI2009M35X AWD V6-3.5L (VQ35HR)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTIGNITION SYSTEMTESTING AND INSPECTIONCOMPONENT FUNCTION CHECK
2009 Infiniti M35x AWD V6-3.5L (VQ35HR)

Component Function Check

2009 Infiniti M35x AWD V6-3.5L (VQ35HR)SECTION Component Function Check




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 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 connector terminals under the following conditions with an oscilloscope.





Is the inspection result normal?
YES - INSPECTION END
NO - Go to Diagnosis Procedure.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.