HVAC Control Module X1 (CJ2)

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 X1 (CJ2) Connector End View

Courtesy of GENERAL MOTORS CORP.

Pin	Wire Color	Circuit	Function
1	0.35 WH/BK	5515	Inside Air Temperature Sensor Assembly Control
2-3	-	-	Not Used
4	0.35 D-GN	734	Inside Air Temperature Sensor Signal
5	0.35 GY	1548	Passenger Sunload Sensor Signal
6	0.35 BN	404	Upper Air Temperature Sensor Signal (C69)
7	0.35 L-GN	405	Lower Air Temperature Sensor Signal (C69)
8-10	-	-	Not Used
11	0.5 PK	2014	Coolant Pump Relay Control (HP2)
12-13	-	-	Not Used
14	0.35 D-GN	5518	Auxiliary Inside Air Temperature Sensor Signal (C69)
15	0.35 L-BU/BK	590	Driver Sunload Sensor Signal
16	0.35 TN	516	Upper Left Air Temperature Sensor Signal
17	0.35 TN	517	Upper Right Air Temperature Sensor Signal
18	0.35 PK	2145	Air Temperature Switch Signal - Right (C69)
19	0.35 GY	2599	Auxiliary Mode Door Control (C69)
20	-	-	Not Used

Connector Part Information

OEM: 15491305
Service: 15126709
Description: 20-Way F USCAR 0.64 Series (BN)

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)