HVAC Control Module X2 (CJ2)

WARNING: This page is about a different car, the 2014 GMC Sierra 3500 HD, 2014 GMC Sierra 2500 HD, 2014 Chevrolet Silverado 3500 HD, and 2014 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of GENERAL MOTORS COMPANY

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

HVAC Control Module X2 (CJ2)

Pin	Wire	Circuit	Function
1	0.35 RD/WH	3340	Battery Positive Voltage
2-3	-	-	Not Used
4	0.35 L-GN/BK	735	Outside 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 3 Voltage
10	0.35 WH	193	Platforms Rear Defog Relay Control (C49 or HP2)
11-13	-	-	Not Used
14	0.35 L-GN	1478	Coolant Level Switch Signal (Diesel)
15	0.5 BK	1050	Ground
16	0.35 D-GN	6101	Low Reference