Ford P0691 OBD-II Trouble Code Definition:
P0691 Fan 1 Control Circuit Low
P0691 Ford OBD-II Trouble CodeDescription:
OBD Trouble Code P0691
Fan 1 Control Circuit Low
What does the code mean? OBD-ii Code P0691 definition:
The Front Control Module (FCM) has detected a short to ground in the cooling fan relay 1 control circuit
The Front Control Module (FCM) has detected a short to ground in the cooling fan relay 1 control circuit
Symptoms Sumptoms of OBD code P0691
– Engine Light ON (or Service Engine Soon Warning Light) – Radiator fan inoperative – Possible engine overheating
– Engine Light ON (or Service Engine Soon Warning Light) – Radiator fan inoperative – Possible engine overheating
Causes Causes of the OBD-II code P0691
– Open or short cooling fan 1 relay circuit – Faulty low speed radiator fan relay – Faulty FCM
– Open or short cooling fan 1 relay circuit – Faulty low speed radiator fan relay – Faulty FCM
Solutions