HVAC Control Module Connector End View

Courtesy of GENERAL MOTORS CORP.
Connector Part Information		12045470 32-Way F Micro-Pack 100 Series (NAT)
Pin	Wire Color	Circuit No.	Function
C1	BLK	1450	Ground
C2	LT BLU/BLK	590	Sunload Sensor Signal
C3	YEL	1791	Right Air Temperature Door Position
C4	-	-	Not Used
C5	BRN	41	Ignition 3 Voltage
C6	WHT/BLK	1236	Right Air Temperature Door Control
C7	DK BLU	1199	Air Temperature Door Control
C8	BRN/WHT	1218	Left Air Temperature Door Position
C9	-	-	Not Used
C10	PNK/BLK	1217	5-Volt Reference
C11	GRY/BLK	754	Blower Motor Speed Control
C12	ORN	640	Battery Positive Voltage
C13-C15	-	-	Not Used
C16	GRY	8	Instrument Panel Lamps Dimmer Switch Signal
D1	YEL	61	Low Reference
D2	DK GRN	734	Inside Air Temperature Sensor Signal
D3	LT GRN/BLK	735	Ambient Air Temperature Sensor Signal
D4-D7	-	-	Not Used
D8	TAN	363	Recirculation Mode Valve Solenoid Control
D9	PPL	361	Mix-Blend Mode Valve Solenoid Control
D10	RED	362	Lower Mode Valve Solenoid Control
D11	LT GRN/BLK	366	Defrost Mode Valve Solenoid Control
D12	WHT	1038	HVAC Class 2 Serial Data
D13	LT BLU	706	Upper Mode Valve Solenoid Control
D14	-	-	Not Used
D15	WHT	193	Rear Defog Relay Control
D16	-	-	Not Used