Sunroof Module C2 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12052856 4-Way F Metri-Pack 280 Series (BK)
Pin	Wire Color	Circuit No.	Function
A	GN	129	Sunroof Motor Close Control
B	YE	643	Accessory Voltage
C	BU	127	Sunroof Motor Open Control
D	BK	750	Ground