DTC DETECTION LOGIC

DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1220
Fuel pump control module (FPCM)
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

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.PERFORM DTC CONFIRMATION PROCEDURE