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HOMESERVICE MANUALSCHEVROLET2009TAHOE BASE, 4.8 CREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 21 (HVAC SYSTEM - MANUAL)COMPONENT LOCATORHVAC CONNECTORSHVAC CONTROL MODULE C4
2009 Chevrolet Tahoe Base, 4.8 C

HVAC Control Module C4

2009 Chevrolet Tahoe Base, 4.8 CSECTION HVAC Control Module C4
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: HVAC Control Module C4 Connector End View
GM1715225Courtesy of GENERAL MOTORS CORP.
HVAC Control Module C4 Connector Parts Information

Connector Part Information 
  • OEM: 15483874
  • Service: 21997401
  • Description: 16-Way F Kaizen 0.64 Series (GN)
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)
HVAC Control Module C4 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 - - Not Used
2 GY 596 5-Volt Reference
3 OG 2215 Auxiliary Mode Door Control
4 GY 2614 Auxiliary Air Temperature Door Control
5 GY/BK 1798 Low Reference
6-9 - - Not Used
10 D-GN 2211 Auxiliary Blower Motor Speed Control
11-16 - - Not Used
RENDER: 1.0x

NO RELATED

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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.