P1127 Ford ECTS Actuator Power Source Circuit Malfunction
Possible causes
– Faulty Electronic Throttle Control System (ETCS) Actuator
– Electronic Throttle Control System (ETCS) Actuator harness is open or shorted
– Electronic Throttle Control System (ETCS) Actuator circuit poor electrical connection
– Electronic Throttle Control System (ETCS) Actuator harness is open or shorted
– Electronic Throttle Control System (ETCS) Actuator circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P1127 Ford Description
Battery positive voltage is supplied to terminal +BM of the Engine Control Module (ECM) even once when the ignition switch is OFF for the electric Electronic Throttle Control System (ETCS) control system.
If the P1127 Ford code is stored, the ECM shuts down the power for the ETCS motor and the magnetic clutch, and the ETCS valve is fully closed by the return spring.
However, the opening angle of the ETCS valve can be controlled by the accelerator pedal through the ETCS cable.
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