P0548 Buick Exhaust Gas Temperature Sensor Circuit Low Bank 2 Sensor 1

P0549 Buick Exhaust Gas Temperature Sensor Circuit High Bank 2 Sensor 1

Possible causes
– Faulty Exhaust Gas Temperature Sensor
– Exhaust Gas Temperature Sensor harness is open or shorted
– Exhaust Gas Temperature Sensor circuit poor electrical connection
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
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