Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Component Inspection (FPCM)
2013 Infiniti QX56 RWDSECTION Component Inspection (FPCM)
- CHECK FUEL PUMP CONTROL MODULE (FPCM)
- Check the voltage between FPCM terminals under the following conditions.
FPCM Condition Voltage Connector + - Terminal Terminal B41 7 6 For 1 second after turning ignition switch ON Approx. 8.5 V More than 1 second after turning ignition switch ON Approx. 0 V Idle speed Approx. 8.5 V Is the inspection result normal?
YES: INSPECTION END
NO: Replace FPCM.
- Check the voltage between FPCM terminals under the following conditions.
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.