Cooling Fan 2 Relay Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		15336745 4-Way F GR 280 Series, Metri-Pack 800, Sealed (GY)
Pin	Wire Color	Circuit No.	Function
30	GY	532	Cooling Fan Motor Supply Voltage
85	PK	639	Ignition 1 Voltage
86	D-BU	473	High Speed Cooling Fan Relay Control
87	OG	742	Battery Positive Voltage