FixVault

DTC Detection Logic

WARNING: This page is about a different car, the 2013 Infiniti M56. However, it is still accessible from the selected car via links, so may be relevant.
DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P1220 FPCM (Fuel pump control module) During engine cranking, the signal voltage of the FPCM to the ECM is too low.
  • Harness or connectors (FPCM circuit is open or shorted) (Fuel pump circuit is open or shorted)
  • FPCM