HVAC Control Module X1

Fig 1: HVAC Control Module X1 Connector End View

GM744296

Courtesy of GENERAL MOTORS CORP.

HVAC Control Module X1

Pin	Wire	Circuit	Function
A1	0.5 BK	1550	Ground
A2	0.35 WH	1038	HVAC Class 2 Serial Data
A3-A6	-	-	Not Used
A7	0.35 D-GN	734	Inside Air Temperature Sensor Signal
A8	0.35 TN	517	Upper Right Air Temperature Sensor Signal
B1	0.35 YE	61	Low Reference
B2-B3	-	-	Not Used
B4	0.35 L-GN/BK	735	Ambient Air Temperature Sensor Signal
B5	0.35 L-BU/BK	590	Driver Sunload Sensor Signal
B6	0.35 GY	1548	Passenger Sunload Sensor Signal
B7	0.35 WH	278	Ambient Light Sensor Signal
B8	0.35 TN	516	Upper Left Air Temperature Sensor Signal

Connector Part Information

OEM: 12110259
Service: 12110259
Description: 16-Way F Micro-Pack 100 Series (GN)

Terminal Part Information

Terminal/Tray: 12146447/3
Core/Insulation Crimp: E/C
Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)