2009 Infiniti M35 xFACTORY OEM SERVICE PROCEDURE

Component Function Check

  1. CHECK FUEL PUMP CONTROL MODULE (FPCM) FUNCTION

    With CONSULT-III

    1. Turn ignition switch ON.
    2. Select "FPCM" in "DATA MONITOR" mode with CONSULT-III.
    3. Check "FPCM" indication under the following conditions.
      MONITOR ITEM CONDITION CHART

      Monitor item Condition Indication
      FPCM
      • Engine: Cranking
      		 HI
      • Engine: Idle
      • Engine coolant temperature: More than 10 °C (50 °F)
      		 LOW

    Without CONSULT-III

    1. Turn ignition switch ON.
    2. Check the voltage between ECM harness connector terminal as per the following.
      Fig 1: Checking Voltage Between ECM Harness Connector Terminals
      G06306810Courtesy of NISSAN MOTOR CO., U.S.A.
      CONNECTOR TERMINAL VOLTAGE CHART

      ECM Condition Voltage (V)
      + -
      Connector Terminal Connector Terminal
      F105 14 M9 128
      • Engine: Cranking
      		 0 - 0.5
      32
      14
      • Engine: Idle
      • Engine coolant temperature: More than 10 °C (50 °F)
      		 Approx. 0
      32

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Go to "DIAGNOSIS PROCEDURE ".

Chapter Navigation
Return to Chapter: Fuel Pump Control Module
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

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.