HVAC Control Module Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		1L-A65-22S-D3C1 22-Way F (GN)
Pin	Wire Color	Circuit Number	Function
1	L-BU	61	Ambient Air Temperature Sensor Signal
2	-	-	Not Used
3	WH	733	Air Temperature Door Position Signal
4	RD	130	5 Volt Reference
5	BK	476	Low Reference
6	PU	54	Blower Motor Speed Request Signal
7	RD/BK	1791	Low Reference
8	L-BU/WH	1318	Mode Door Control
9	L-GN/BK	1648	Recirculation Door Control
10	BU/WH	761	Blower Motor Speed Control
11	GY	590	Sunload Sensor Signal
12	BU/RD	8	Instrument Panel Lamp Supply Voltage
13	GN	119	Mode Door Position Signal
14	BU	683	Rear Defog Indicator Supply Voltage
15	WH/RD	641	Ignition 3 Voltage
16	BK/WH	550	Ground
17	BU/YE	1640	Battery Positive Voltage
18	OG	1807	Class 2 Serial Data
19	YE	1807	Class 2 Serial Data
20	RD/WH	1199	Air Temperature Door Control
21	GN/YE	1647	Low Reference
22	L-GN	1218	Low Reference