HVAC Control Module Connector End View C1

Fig 1: HVAC Control Module C1 Connector End Views

Courtesy of GENERAL MOTORS CORP.

HVAC Control Module C1 Connector Parts Information

Connector Part Information

HVAC Control Module C1 Connector Terminal Identification

Pin	Wire Color	Circuit No.	Function
1	L-BU	292	Rear Defogger Switch Signal
2	L-GN/BK	1647	Recirculation Door Control B
3	PK/WH	1648	Recirculation Door Control A
4	PU	361	Defrost Mode Valve Solenoid Control A
5	PU/WH	3361	Defrost Mode Valve Solenoid Control B
6	L-GN	2210	Air Temperature Door Control - Cold
7	D-BU	1199	Air Temperature Door Control - Hot
8	GY	705	5-Volt Reference
9	WH	193	Rear Defogger Relay Control
10	L-GN	66	A/C Request Signal
11	GY	8	Park Lamp Supply Voltage
12	BK/WH	151	Ground
13	YE	60	Blower Motor Low Control - Redundant
14	L-GN/WH	366	Lower Mode Valve Solenoid Control A
15	L-GN/BK	3366	Lower Mode Valve Solenoid Control B
16	RD	362	Upper Mode Valve Solenoid Control A
17	OG/WH	3362	Upper Mode Valve Solenoid Control B
18	-	-	Not Used
19	L-BU	733	Air Temperature Door Position Signal
20	YE/BK	713	Defrost Mode Valve Position Sensor Signal
21	YE/BK	1814	Lower Mode Door Position Signal
22	RD	708	Mode Door Position Signal
23	BK	407	Low Reference
24	BN	41	Ignition 3 Voltage