Blower Motor Resistor Assembly Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129565 4-Way F Metri-Pack 280 Series, Sealed (GY)
Pin	Wire Color	Circuit No.	Function
A	TN	63	Blower Motor Medium 1 Control
B	L-BU	72	Medium 2 Blower Motor Control
C	OG	52	Blower Motor High Control
D	YE	60	Blower Motor Low Control