HVAC Control Module X2 (CJ3)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: HVAC Control Module X2 (CJ3) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire Color	Circuit	Function
1	0.35 YE	6817	LED Backlight Dimming Control
2	0.35 OG	300	Ignition Voltage
3	0.5 BK/WH	1851	Ground
4	0.35 RD/WH	3340	Battery Positive Voltage
5	0.35 D-GN	5060	Low Speed GMLAN Serial Data
6	0.35 D-BU	204	A/C Low Pressure Sensor Signal
7	-	-	Not Used
8	0.35 WH	193	Rear Defog Relay Control
9	-	-	Not Used
10	0.5 BK	1050	Ground
11	0.35 GY	597	5-Volt Reference
12	0.35 D-GN	6101	Low Reference
13-16	-	-	Not Used

Connector Part Information

OEM: 15483873
Service: 21997402
Description: 16-Way F USCAR 0.64 Series (BU)

Terminal Part Information

Terminal/Tray: 7116-4618-02/14
Core/Insulation Crimp: P/P
Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)