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HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 927 (DATA COMMUNICATION SYSTEM)VISUAL IDENTIFICATIONDATA COMMUNICATION CONNECTORSDATA LINK CONNECTOR (DLC)
2006 Chevrolet Suburban C2500, 6.0 U

Data Link Connector (DLC)

2006 Chevrolet Suburban C2500, 6.0 USECTION Data Link Connector (DLC)
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: Data Link Connector (DLC) Connector End View
GM68793Courtesy of GENERAL MOTORS CORP.
Data Link Connector (DLC) Connector Parts Information

Connector Part Information 
  • OEM: 12110250
  • Service: 12110250
  • Description: 16-Way F Metri-Pack 150 Series (BK)
Terminal Part Information 
  • Pins: 1, 6, 14
  • Terminal/Tray: 12129373/5
  • Core/Insulation Crimp: TBD
  • Release Tool/Test Probe: TBD
  • Pins: 4, 5, 16
  • Terminal/Tray: 12129484/19
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)
Data Link Connector (DLC) Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 D-GN 5060 Low Speed GMLAN Serial Data
2-3 - - Not Used
4 BK 1050 Ground
5 BK/WH 1851 Ground
6 TN/BK 2500 High Speed GMLAN Serial Data Bus +
7-13 - - Not Used
14 TN 2501 High Speed GMLAN Serial Data Bus -
15 - - Not Used
16 RD/WH 640 Battery Positive Voltage
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.