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Home >> Cadillac >> 2007 >> STS Base, 4.6 A, RWD >> Repair and Diagnosis >> Electrical >> Wiring Diagrams >> OEM Connector End Views - Antilock Brake System, Remote Function, Steering Wheel And Column, Engine Control Module, Engine Controls, Entertainment/Communication >> Entertainment/Communication Connector End Views >> Vehicle Communication Interface Module (VCIM) Connector End View C4
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Vehicle Communication Interface Module (VCIM) Connector End View C4

Fig 1: Vehicle Communication Interface Module (VCIM) C4 Connector End View
GM1412985Courtesy of GENERAL MOTORS CORP.
Vehicle Communication Interface Module (VCIM) C4 Connector Parts Information

Connector Part Information 
  • OEM: 638695-2
  • Service: 88953373
  • Description: 12-Way F Tyco MK11 (BK)
Terminal Part Information 
  • Pins: 1, 2, 2, 2, 3, 3, 8, 8, 9, 9
  • Terminal/Tray: 175266-5/15
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)
Vehicle Communication Interface Module (VCIM) C4 Connector End View

Pin Wire Color Circuit No. Function
1 D-GN 5060 Low Speed GMLAN Serial Data (UE1)
2 TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (UE1 w/ K59)
TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (UE1 w/o LC3)
TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (LC3 w/ UE1)
3 TN 2501 High Speed GMLAN Serial Data (-) (1) (UE1 w/o LC3)
TN 2501 High Speed GMLAN Serial Data (-) (1) (UE1 w/ K59)
4-7 - - Not Used
8 TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (F55 w/ UE1)
TN/BK 2500 High Speed GMLAN Serial Data (+) (1) (UE1 w/o F55)
9 TN 2501 High Speed GMLAN Serial Data (-) (1) (UE1 w/o F55)
TN 2501 High Speed GMLAN Serial Data (-) (1) (F55 w/ UE1)
10-12 - - Not Used