HVAC Control Module X2 (C67/C42/MEX)

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: HVAC Control Module X2 (C67/C42/MEX) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	0.35 YE	6817	LED Backlight Dimming Control
2	0.35 OG	300	Ignition 3 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 (C67/MEX without C42)
7	-	-	Not Used
8	0.35 WH	193	Rear Defog Relay Control (C49)
9	0.35 L-GN/BK	735	Ambient Air Temperature Sensor Signal (C67 Except 8S8)
10	0.5 BK	1050	Ground
11	-	-	Not Used
12	0.35 D-GN	6101	Low reference (C67 Except 8S8)
13-14	-	-	Not Used
15	0.35 L-GN	1478	Coolant Level Switch Signal (Diesel)
16	-	-	Not Used

Connector Part Information

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

Terminal Part Information

Terminal/Tray: SAIT-A03T-M064/14
Core/Insulation Crimp: P/P
Release Tool/Test Probe: J-38125-215A/J-35616-64B (L-BU)