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Home >> Infiniti >> 2005 >> Q45 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1211 To P2138 >> DTC P1220: Fuel Pump Control Module (FPCM) >> Component Inspection >> Fuel Pump Control Module
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Fuel Pump Control Module

Fig 1: Locating Fuel Pump Control Module
G02376081Courtesy of NISSAN MOTOR CO., U.S.A.
  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Check voltage between FPCM terminal 4 and ground under the following conditions.
    FPCM TERMINALS VOLTAGE SPECIFICATIONS CHART

    Condition Voltage
    When engine cranking Approx. 0V
    After starting engine Approx. 5V
  4. If NG, replace fuel pump control module.
    Fig 2: Checking Voltage Between FPCM Terminal 4 And Ground
    G02376082Courtesy of NISSAN MOTOR CO., U.S.A.
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