Blower Motor Resistor Assembly Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129566 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	D-BU	101	Blower Motor Supply Voltage
D	YE	60	Blower Motor Low Control