Ambient Light/Sunload Sensor Assembly Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12064760 4-Way F Metri-Pack 150 Series (BK)
Pin	Wire Color	Circuit No.	Function
A	L-BU/BK	590	Driver Sunload Sensor Signal
B	GY	1548	Passenger Sunload Sensor Signal
C	BK	279	Ambient Light Sensor Low Reference
D	WH	278	Ambient Light Sensor Signal