2003 Cadillac Escalade EXTFACTORY OEM SERVICE PROCEDURE

Cellular Communication Connectors

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Vehicle Communication Interface Module (VCIM) C1

GM697022Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15383038
  • 16-Way F Multilock (WHT)
Pin Wire Color Circuit No. Function
1 - - Not Used
2 BRN/WHT 2517 Keypad Red LED Signal
3 YEL/BLK 2516 Keypad Green LED Signal
4-5 - - Not Used
6 LT GRN/BLK 2515 Keypad Supply Voltage
7 BLK/WHT 1851 Ground
8 BLK/WHT 1851 Ground
9-10 - - Not Used
11 DK GRN/WHT 2514 Keypad Signal
12-14 - - Not Used
15 ORN 3240 Battery Positive Voltage
16 ORN 3240 Battery Positive Voltage
Vehicle Communication Interface Module (VCIM) C2

GM697023Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 15383039
  • 12-Way F Multilock (WHT)
Pin Wire Color Circuit No. Function
1 PNK/BLK 2062 Cellular Telephone Voice Signal
2 ORN/BLK 2061 Cellular Telephone Voice Low Reference
3-4 - - Not Used
5 YEL 1127 Trip Computer/Nav Class 2 Serial Data
6-7 - - Not Used
8 BARE 1792 Drain Wire
9 GRY 655 Cellular Microphone Signal
10 BARE 514 Drain Wire
11-12 - - Not Used
Cellular Telephone Microphone

GM82383Courtesy of GENERAL MOTORS CORP.
Connector Part Information
  • 12047662
  • 2-Way F Metri-Pack 150 Series (BLK)
Pin Wire Color Circuit No. Function
A BARE 514 Drain Wire
B GRY 655 Cellular Microphone Signal
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:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.