HVAC Control Module C1 Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		OEM: 12110259 Service: 12110259 16-Way F Micro-Pack 100 Series (GN)
Pin	Wire Color	Circuit No.	Function
A1	BK	1550	Ground
A2	WH	1038	HVAC Class 2 Serial Data
A3- A6	-	-	Not Used
A7	D-GN	734	Inside Air Temperature Sensor Signal
A8	TN	517	Upper Right Air Temperature Sensor Signal
B1	YE	61	Low Reference
B2	D-BU/WH	1355	Valet Mode Switch Signal
B3	YE/BK	68	Low Coolant Level Indicator Control
B4	L-GN	735	Ambient Air Temperature Sensor Signal
B5	L-BU/BK	590	Driver Sunload Sensor Signal
B6	GY	1548	Passenger Sunload Sensor Signal
B7	WH	278	Ambient Light Sensor Signal
B8	TN	516	Upper Left Air Temperature Sensor Signal