SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2271 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEW 3 OF 5)HVAC CONTROL MODULE X2 (CJ3)
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

HVAC Control Module X2 (CJ3)

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION HVAC Control Module X2 (CJ3)
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 X2 (CJ3) Connector End View
GM1715229Courtesy of GENERAL MOTORS CORP.
HVAC Control Module X2 (CJ3)

Pin Wire Color Circuit Function
1 0.35 YE 6817 LED Backlight Dimming Control
2 0.35 OG 300 Ignition 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
7 - - Not Used
8 0.35 WH 193 Rear Defog Relay Control
9 - - Not Used
10 0.5 BK 1050 Ground
11 0.35 GY 597 5-Volt Reference
12 0.35 D-GN 6101 Low Reference
13-16 - - Not Used
Connector Part Information 
  • OEM: 15483873
  • Service: 21997402
  • Description: 16-Way F USCAR 0.64 Series (BU)
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)
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.