P1065 Ford ECM Power Supply Circuit
Possible causes
– ECM Harness power supply circuit is open or shorted
– ECM Harness ground supply circuit is open or shorted
– ECM may be faulty
– ECM Harness ground supply circuit is open or shorted
– ECM may be faulty
What about the obd code?
ECM back-up RAM system does not function properly.
Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
P1065 Ford Description
Battery voltage is supplied to the Engine Control Module (ECM) even when the ignition switch is turned OFF for the ECM memory function of the DTC memory, the air-fuel ratio feedback compensation value memory, the idle air volume learning value memory, etc.
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