C0278 Ford

Ford C0278 OBD-II Trouble Code Definition:

C0278 Open or Short Circuit in ABS Solenoid Relay Circuit

C0278 Ford OBD-II Trouble CodeDescription:

Causes
– Brake actuator (skid control ECU)
– ABS solenoid relay circuit
When is the obd code mean?
When solenoid relay is turned on, relay contact is off for 0.2 seconds or longer.
Symptoms
– ABS Warning Light ON