Blower Motor Control Processor Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12129565 4- Way F Metri-Pack 280 Series Sealed (MD GRY)
Pin	Wire Color	Circuit No.	Function
A	BLK	450	Ground (LH Drive)
A	BLK	350	Ground (RH Drive)
B	ORN	1340	Battery Positive Voltage
C	GRY/BLK	754	Blower Speed Control
D	-	-	Not Used