HVAC Control Module Connector End View X3

Fig 1: HVAC Control Module X3 Connector End View

Courtesy of GENERAL MOTORS CORP.

HVAC Control Module X3 Connector Parts Information

Connector Part Information

Terminal Part Information

HVAC Control Module X3 Connector Terminal Identification

Pin	Wire	Circuit No.	Function
1	0.35 TN	518	Lower Left Air Temperature Sensor Signal
2	0.35 L-GN	2275	Mode Door Position Signal
3	0.35 PU	1838	Recirculation Door Position Signal
4	0.35 GY/BK	754	Blower Motor Speed Control
5	0.35 TN	2273	Mode Door Control
6	0.35 D-BU	1199	Air Temperature Door Control
7	0.35 D-GN	1614	Recirculation Door Control B
8	0.35 WH/BK	1236	Auxiliary Air Temperature Door Control
9	-	-	Not Used
10	0.35 GY	598	5-Volt Reference
11	0.35 TN	520	Lower Right Air Temperature Sensor Signal
12	0.35 L-BU	733	Air Temperature Door Position Signal
13	0.35 D-BU	1646	Auxiliary Air Temperature Door Position Signal
14	0.35 WH	2622	Evaporator Temperature Sensor Signal
15	0.35 WH	119	Mode Door Control
16	0.35 L-GN	2210	Air Temperature Door Control
17	0.35 TN/BK	2274	Recirculation Door Control Circuit
18	0.35 GY/BK	2778	Right Air Temperature Door Control A
19	0.35 TN	552	Low Reference
20	035 YE	1791	Low Reference