Climate Control Seat Module - Driver C1 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		OEM: 12052856 Service: 12125636 4-Way F Metri-Pack 280 Series (BK)
Pin	Wire Color	Circuit No.	Function
A	-	-	Not Used
B	PK	1139	Run/Crank Ignition 1 Voltage
C	BK	1150	Ground
D	RD/WH	1640	Battery Positive Voltage