2012 Infiniti QX56 RWDFACTORY OEM SERVICE PROCEDURE

Component Inspection

  1. CHECK HIGH PRESSURE FUEL PUMP SOLENOID
    1. Turn ignition switch OFF.
    2. Disconnect high pressure fuel pump harness connector.
    3. Check the resistance between high pressure fuel pump connector terminals as per the following.
      + - Condition Resistance
      High pressure fuel pump
      Terminal
      1 2 Temperature 20 - 30Β°C (68 - 86Β°F) 9 - 11 Ξ©

      Is the inspection result normal?Β 

      YES: INSPECTION END

      NO: Replace high pressure fuel pump. Refer to "REMOVAL AND INSTALLATION ".

Factory Service Tools

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When to See a Mechanic

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

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

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