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Home >> Saturn >> 2000 >> LS Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0480: Cooling Fan Control Relay No. 1 Circuit >> Circuit Description

Circuit Description

Cooling fans No. 1 and 2 control outputs are used by PCM to control speed of cooling fans. By pulling one or both of the circuits low, PCM can command either low, medium or high speed operation. DTC will set when commanded state of cooling fan No. 1 control does not match feedback state and system voltage is greater than 9.5 volts.

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