Vehicle Communication Interface Module (VCIM) C2

2006 Chevrolet Chevy Express G2500, Van Cargo Extended, 5.3 T, 4L60E/M30SECTION Vehicle Communication Interface Module (VCIM) C2
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: Vehicle Communication Interface Module (VCIM) C2 Connector End View
GM1471691Courtesy of GENERAL MOTORS CORP.
Vehicle Communication Interface Module (VCIM) C2 Connector Parts Information

Connector Part Information 
  • OEM: 15431365
  • Service: 88952886
  • Description: 12-Way F Micro 100A (NA)
Terminal Part Information 
  • Terminal/Tray: 15445905/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12180559/J-35616-6 (BN)
Vehicle Communication Interface Module (VCIM) C2 Connector Terminal Identification

Pin Wire Color Circuit No. Function
1 D-BU 658 Cellular Telephone Voice Signal
2 L-BU/BK 659 Cellular Telephone Voice Low Reference
3 TN/BK 2500 High Speed GMLAN Serial Data Bus+
4 TN 2501 High Speed GMLAN Serial Data Bus-
5-7 - - Not Used
8 Bare 1782 Drain Wire
9 GY 655 Cellular Microphone Signal
10 Bare 514 Ground
11-12 - - Not Used
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.

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.