GM Service Manual Online
For 1990-2009 cars only

Dual electric cooling fans aid air flow through the radiator. The fans are driven by electric motors that attach to the fan shroud.

The fan motors are activated by the cooling fan relays.

Caution: An electric fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.

If diagnosis is to be performed on a coolant fan electrical malfunction, refer to Engine Controls.