P0693 Buick Cooling Fan 2 Relay Control Circuit Low
Possible causes
– Open or short cooling fan 2 relay circuit
– Faulty low speed radiator fan relay
– Faulty Front Control Module (FCM)
– Faulty low speed radiator fan relay
– Faulty Front Control Module (FCM)
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
– Radiator fan inoperative
– Possible engine overheating
– Radiator fan inoperative
– Possible engine overheating
P0693 Buick Description
The Front Control Module (FCM) has detected a short to ground in the cooling fan relay 2 control 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