2008 Chevrolet Chevy Express G2500, Van Cargo Extended, 6.0 KFACTORY OEM SERVICE PROCEDURE

Data Link Connector (DLC)

Fig 1: Data Link Connector (DLC) Connector End View
GM68793Courtesy of GENERAL MOTORS CORP.
Data Link Connector (DLC)

Pin Wire Circuit Function
1 0.35 D-GN 5060 Low Speed GMLAN Serial Data
2-3 - - Not Used
4 0.5 BK/WH 351 Ground
5 0.5 BK/WH 351 Ground
6 0.5 TN/BK 2500 High Speed GMLAN Serial Data Bus (+)
7-13 - - Not Used
14 0.5 TN 2501 High Speed GMLAN Serial Data Bus (-)
15 - - Not Used
16 0.8 RD/WH 640 Battery Positive Voltage
Connector Part Information 
  • OEM: 12110250
  • Service: 12110250
  • Description: 16-Way F Metri-Pack 150 Series (BK)
Terminal Part Information 
  • Pins: 1, 4-6, 14, 16
  • Terminal/Tray: 12129484/19
  • Core/Insulation Crimp: Pins 1, 4-6, 14 - E/C
  • Core/Insulation Crimp: Pins 16 - E/A
  • Release Tool/Test Probe: 12094429/J-35616-14 (GN)
Factory Service Tools

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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.

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