LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2005 >> Q45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2138 >> DTC P1220: Fuel Pump Control Module (FPCM) >> Description >> System Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

System Description

Fig 1: Fuel Pump Control Module (FPCM) System Description
G02376069Courtesy of NISSAN MOTOR CO., U.S.A.

This system controls the fuel pump operation. The amount of fuel flow delivered from the fuel pump is altered between two flow rates by the FPCM operation. The FPCM determines the voltage supplied to the fuel pump (and therefore fuel flow) according to the following conditions.

Fig 2: Fuel Pump Voltage Supplying Conditions
G02376070Courtesy of NISSAN MOTOR CO., U.S.A.