GM Service Manual Online
For 1990-2009 cars only
Connector 1: Vehicle Communication Interface Module (VCIM) C1
Connector 2: Vehicle Communication Interface Module (VCIM) C2
Connector 3: Vehicle Communication Interface Module (VCIM) C3
Connector 4: Vehicle Communication Interface Module (VCIM) C4

Vehicle Communication Interface Module (VCIM) C1


Object Number: 814530  Size: CH

Connector Part Information

  • OEM: 917981-1
  • Service: 15306351
  • Description: 16-Way M MKII Hybrid (WH)

Terminal Part Information

  • Pins: 2, 3, 6, 11, 7, 15
  • Terminal/Tray: 175266-5/15
  • Core/Insulation Crimp: Pins 2, 3, 6, 11 - J/J
  • Core/Insulation Crimp: Pins 7, 15 - K/K
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)

Vehicle Communication Interface Module (VCIM) C1

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BN/WH

2517

Keypad Red LED (UE1)

3

YE/BK

2516

Keypad Green LED (UE1)

4-5

--

--

Not Used

6

L-GN/BK

2515

Keypad Supply Voltage (UE1)

7

BK

1050

Ground (UE1)

8-10

--

--

Not Used

11

D-GN/WH

2514

Keypad Signal (UE1)

12-14

--

--

Not used

15

RD/WH

2240

Battery Positive Voltage (UE1)

16

--

--

Not Used

Vehicle Communication Interface Module (VCIM) C2


Object Number: 814532  Size: CH

Connector Part Information

  • OEM: 917975-1
  • Service: 88952886
  • Description: 12-Way F MKII Hybrid (WH)

Terminal Part Information

  • Pins: 1, 1, 2, 2, 8, 9, 10
  • Terminal/Tray: 175266-5/15
  • Core/Insulation Crimp: Pins 1, 1, 2, 2, 8, 9 - J/J
  • Core/Insulation Crimp: Pins 10 - K/K
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)

Vehicle Communication Interface Module (VCIM) C2

Pin

Wire Color

Circuit No.

Function

1

D-BU

658

Cellular Telephone Voice Signal (UE1 w/ YQ2)

D-BU

658

Cellular Telephone Voice Signal (UE1 w/ YQ4)

2

L-BU/BK

659

Cellular Telephone Voice Low Reference (UE1 w/ YQ2)

L-BU/BK

659

Cellular Telephone Voice Low Reference (UE1 w/ YQ4)

3-7

--

--

Not Used

8

BARE

814

Drain Wire (UE1 w/ YQ2/YQ4)

9

GY

655

Cellular Telephone Microphone Signal (UE1)

10

BARE

1782

Drain Wire (UE1)

11-12

--

--

Not Used

Vehicle Communication Interface Module (VCIM) C3


Object Number: 814531  Size: CH

Connector Part Information

  • OEM: 917983-2
  • Service: 88986322
  • Description: 16-Way M MKII Hybrid (BK)

Terminal Part Information

  • Pins: 2, 4, 5
  • Terminal/Tray: 175266-5/15
  • Core/Insulation Crimp: Pins 2, 4 - J/J
  • Core/Insulation Crimp: Pins 5 - K/K
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)

Vehicle Communication Interface Module (VCIM) C3

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PK

5149

Voice Recognition Audio Signal (UE1)

3

--

--

Not Used

4

PK/BK

5152

Voice Recognition Audio Low Reference (UE1)

5

BARE

1792

Drain Wire (UE1)

6-16

--

--

Not Used

Vehicle Communication Interface Module (VCIM) C4


Object Number: 1412985  Size: CH

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

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