2012 Infiniti M37 BaseFACTORY OEM SERVICE PROCEDURE

Inspection Procedure

  1. CHECK BATTERY TERMINALS CONNECTION 

    Check if battery terminals are clean and tight.

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair battery terminals connection.

  2. CHECK FUSE 

    Check for blown fuse and fusible link.

    Unit Power source (Power supply terminals) Fuse No.
    Alternator Battery ("S" terminal) 31
    Combination meter Ignition switch ON ("L" terminal) 4

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: Be sure to eliminate the cause of malfunction before installing new fuse.

  3. CHECK "E" TERMINAL CONNECTION 

    Check if "E" terminal (alternator ground harness) is clean and tight.

    Is the inspection result normal? 

    YES: GO TO 4.

    NO: Repair "E" terminal connection.

  4. CHECK DRIVE BELT TENSION 

    Check drive belt tension. Refer to the following.

    • VQ37VHR: "CHECKING "
    • VK56VD: "CHECKING "

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Repair as needed.

Factory Service Tools

Use the Manual With the Right Hardware

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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.