Cooling System Connector End Views

Cooling Fan Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12124685 3-Way F Metri-Pack 630 Series, Sealed (BK)
Pin	Wire Color	Circuit No.	Function
A	BK	250	Ground
B	L-BU	409	Low Speed Cooling Fan Supply Voltage
C	GY	532	High Speed Cooling Fan Supply Voltage

Cooling Fan 1 Relay Terminal Identification

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129716 4-Way F Metri-Pack 280 Series, Flexlock (GY)
Pin	Wire Color	Circuit No.	Function
30	L-BU	409	Low Speed Cooling Fan Supply Voltage
85	PK	639	Ignition 1 Voltage
86	D-GN	335	Low Speed Cooling Fan Relay Control
87	OG	742	Battery Positive Voltage

Cooling Fan 2 Relay Terminal Identification

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	High Speed Cooling Fan Supply Voltage
85	PK	639	Ignition 1 Voltage
86	D-BU	473	High Speed Cooling Fan Relay Control
87	OG	742	Battery Positive Voltage