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HOMESERVICE MANUALSCHEVROLET2013SILVERADO 2500 HD LT, 2D CAB CHASSIS, 6.6L ENG VIN 8, RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 2269 (WIRING SYSTEMS AND POWER MANAGEMENT - COMPONENT CONNECTOR END VIEWS - ELECTRONIC COMPASS MODULE TO MEMORY SEAT MODULE (X4))COMPONENT CONNECTOR END VIEWSHVAC CONTROL MODULE X3 (CJ3)
2013 Chevrolet Silverado 2500 HD LT, 2D Cab Chassis, 6.6L Eng VIN 8, RWD

HVAC Control Module X3 (CJ3)

2013 Chevrolet Silverado 2500 HD LT, 2D Cab Chassis, 6.6L Eng VIN 8, RWDSECTION HVAC Control Module X3 (CJ3)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
GM1715228Courtesy of
Connector Part Information
  • Harness Type: Instrument Panel
  • OEM Connector: 15491304
  • Service Connector: 15126710
  • Description: 20-Way F USCAR 0.64 Series (GY)
Terminal Part Information
  • Terminated Lead: 13575264
  • Release Tool: J-38125-215
  • Diagnostic Test Probe: J-35616-64B (L-BU)
  • Terminal/Tray: SAITS-A03T-M064/14
  • Core/Insulation Crimp: P/P
HVAC Control Module X3 (CJ3)

Pin Wire Circuit Function
1 - - Not Used
2 0.35 YE/BK 713 Defrost/Heater Mode Valve Position Sensor Signal
3 - - Not Used
4 0.35 GY/BK 754 Blower Motor Speed Control
5-9 - - Not Used
10 0.35 GY 598 5-Volt Reference
11 - - Not Used
12 0.35 L-BU 733 Air Temperature Door Position Signal
13 0.35 D-BU 1646 Auxiliary Air Temperature Door Position Signal
14 0.35 WH 2622 Evaporator Temperature Signal
15 0.35 TN 2273 Mode Door Control
16 0.35 D-BU 1199 Air Temperature Door Control
17 0.35 D-GN 1614 Recirculation Door Control
18 0.35 WH/BK 1236 Auxiliary Air Temperature Door Control
19 0.35 TN 552 Low Reference
20 0.35 YE 1791 Low Reference
RENDER: 1.0x

NO RELATED

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

  • • You smell fuel, burning insulation, or see smoke.
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  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
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