C0278 Chevrolet 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