C0278 Ford Open or Short Circuit in ABS Solenoid Relay Circuit
Possible causes
– Brake actuator (skid control ECU)
– ABS solenoid relay circuit
– ABS solenoid relay circuit
What about the obd code?
When solenoid relay is turned on, relay contact is off for 0.2 seconds or longer.
Symptoms
– ABS Warning Light ON
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