C0278 Buick Open or Short Circuit in ABS Solenoid Relay Circuit

C0279 Buick Short to B+ in ABS Solenoid Relay Circuit

Possible causes
– Brake actuator (skid control ECU)
– ABS solenoid relay circuit
Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera