P1277 Ford Cylinder #7 High To Low Side Open

P1277 Ford Cylinder #7 High To Low Side Open

Possible causes
  • Fuel injector No. 7 output circuit short to voltage.
  • Injector.
  • NG Module.
    • Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1277 Ford Description

    Indicates a high voltage condition exists at the injector output of the NG module for cylinder No. 7 when low voltage is expected.

    Ford Vehicle:Ford Escape,Ford Focus Flexifuel,Ford Mustang,Ford Fusion,Ford Taurus,Ford F-Series,Ford Explorer,Ford C-Max,Ford Escape,Ford Edge,Ford Explorer,Ford Flex,Ford Expedition,Ford Transit Connect,Ford F1-50,Ford E-Series Wagon,Ford Super Duty,Ford Fusion Hybrid SE,Ford C-MAX Hybrid SEL,Ford C-MAX Energi,Ford Fusion Energi SE,Ford Fucos Electric,Ford E-Series Van,Ford E-Series Cutaway,Ford Super Duty Pick Up,Ford Chassis Cab,Ford F-650/F-750,Ford Stripped Chassis
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