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Home >> Cadillac >> 2004 >> Seville >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Diagnostic Information and Procedures >> Scan Tool Output Controls

Scan Tool Output Controls

PCM Scan Tool Output Controls - 4.6L

Scan Tool Output Control Additional Menu Selection(s) Description
Fans Low Speed Fan Relays The scan tool displays a Commanded State of None, Off or On. This allows you to communicate with the PCM and activate or deactivate the cooling fan 1 relay, manually turning the low speed fans On and Off.
Fans High Speed Fan Relays The scan tool displays a Commanded State of None, Off or On. This allows you to communicate with the PCM to activate or deactivate the cooling fan 1 relay, manually turning the low speed fans On. After a 3 second delay the PCM will activate the cooling fan s/p relay and the cooling fan 2 relay. This turns the high speed fans On and Off.