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Home >> Infiniti >> 2024 >> Q50 Luxe, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Description >> System >> Fuel Pump Control Module (FPCM) >> System Description
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System Description

SYSTEM DIAGRAM 

GNSDB148116Courtesy of NISSAN NORTH AMERICA, INC.

SYSTEM DESCRIPTION 

The fuel pump control module (FPCM) controls the discharging volume of the fuel pump by the FPCM control signals (Low/Mid/High) depending on driving conditions.

Conditions Amount of fuel flow Supplied voltage
For 1 second after turning ignition switch ON Low/Mid Approximately 9.9 V
  • Engine cranking
  • Engine coolant temperature is below 10°C (50°F)
  • Engine is running under high load and high speed conditions
 High Battery voltage
(11 - 14 V)
Except the above Low/Mid Approximately 9.9 V
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