LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2017 >> Q70L 5.6, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (VK56VD) (Except Hybrid) (2 Of 3) >> DTC/Circuit Diagnosis >> DTC P1220: Fuel Pump Control Module (FPCM) >> Component Inspection (FPCM) >> Diagnostic Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnostic Test

  1. CHECK FUEL PUMP CONTROL MODULE (FPCM)

    1. Check the voltage between FPCM terminals under the following conditions.
      FPCM Condition Voltage
      Connector + -
      Terminal Terminal
      B221 7 6 For 1 second after turning ignition switch ON Approx. 10 V
      More than 1 second after turning ignition switch ON Approx. 0 V
      Idle speed Approx. 10 V

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Replace FPCM. Refer to REMOVAL AND INSTALLATION .

scientia non olet · About LEMON Manuals