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Home >> Cadillac >> 2004 >> Seville >> Repair and Diagnosis >> External Pages >> Different car >> Section 122 (Engine Cooling System) >> Diagnostic Information and Procedures >> Scan Tool Output Controls
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Scan Tool Output Controls

WARNING: This page is about a different car, the 2004 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
3.8L - PCM Scan Tool Output Controls

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.
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