HVAC Control Module X1 (CJ3)

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 X1 (CJ3) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire	Circuit	Function
1-7	-	-	Not Used
8	0.35 PK	2145	Air Temperature Switch Signal - Right
9	0.35 OG	2615	Auxiliary Mode Door Signal
10	0.35 YE	2214	Auxiliary Air Temperature Door Signal
11-17	-	-	Not Used
18	0.35 GY	2599	Auxiliary Mode Door Position Signal
19	0.35 PU/WH	760	Auxiliary Blower Motor Speed Signal
20	-	-	Not Used

Connector Part Information

Harness Type: Instrument Panel
OEM Connector: 13782501
Service Connector: 13578572
Description: 20-Way F Micro HVT Series (BN)

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