P0691
Powertrain Codes
P0691 - BMW - Electric Fan Activation
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light) - Radiator fan inoperative - Possible engine overheating
Possible Causes
- Open or short cooling fan 1 relay circuit - Faulty low speed radiator fan relay - Faulty electric fan
Description
The Engine Control Module (ECM) detected a low fan 1 control circuit