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Home >> Ford >> 2012 >> Explorer Base, 3.5 8, AWD, 6F50 >> Repair and Diagnosis >> External Pages >> Different car >> Section 322 (Engine Controls (Except Diesel & Hybrid) - DTC P0600 - P1647) >> DTC P0627: Fuel Pump A Control Circuit/Open

DTC P0627: Fuel Pump A Control Circuit/Open

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DTC P0627: FUEL PUMP A CONTROL CIRCUIT/OPEN

Description:  The fuel pump control module monitors the fuel pump module and secondary circuits for a concern. If the fuel pump control module detects a concern with the fuel pump module or secondary circuits, the fuel pump control module sends an 80% duty cycle signal on the fuel pump monitor (FPM) circuit to report the concern to the PCM. The test fails when the fuel pump control module is still reporting a concern with the fuel pump module or secondary circuits after a calibrated amount of time.
Possible Causes: 
  • FPPWR circuit open
  • FPPWR circuit short to ground
  • FPRTN circuit open
  • FPPWR circuit short to voltage
  • FPRTN circuit short to voltage
  • Damaged fuel pump assembly
  • Damaged fuel pump control module
Diagnostic Aids:  Check for any harness concerns. The fuel pump control module controls the speed of the fuel pump module by supplying a variable voltage to the fuel pump module on the FPPWR circuit.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST KC .