HVAC Control Module X2 (CJ2)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: HVAC Control Module X2 (CJ2) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1	0.35 RD/WH	3340	Battery Positive Voltage
2	-	-	Not Used
3	0.5 GY	970	5-Volt Reference (HP2)
4	0.35 L-GN/BK	735	Ambient Air Temperature Sensor Signal
5	0.35 D-GN	5060	Low Speed GMLAN Serial Data
6-7	-	-	Not Used
8	0.5 BK/WH	1851	Ground
9	0.35 OG	300	Ignition Voltage
10	0.35 WH	193	Rear Defog Relay Control
11-14	-	-	Not Used
15	0.5 BK	1050	Ground
16	0.35 D-GN	6101	Low Reference

Connector Part Information

Harness Type: Instrument Panel
OEM Connector: 13783349
Service Connector: 13578573
Description: 16-Way F Micro HVT Series (BK)

Terminal Part Information

Terminated Lead: 13575550
Release Tool: J-38125-559
Diagnostic Test Probe: J-35616-16 (L-GN)
Terminal/Tray: 15445905/23
Core/Insulation Crimp: J/J