P0627 Buick Fuel Pump Control System Malfunction
Possible causes
– Faulty fuel pump relay
– Fuel pump harness is open or shorted
– Fuel pump circuit poor electrical connection
– Faulty fuel pump control module (if applicable)
– Fuel pump harness is open or shorted
– Fuel pump circuit poor electrical connection
– Faulty fuel pump control module (if applicable)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
P0627 Buick Description
The Engine Control Module (ECM) has detected an open or short in the fuel pump 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