GM Service Manual Online
For 1990-2009 cars only
Connector 1: Inside Rearview Mirror
Connector 2: Vehicle Communication Interface Module (VCIM) - C1
Connector 3: Vehicle Communication Interface Module (VCIM) - C2
Connector 4: Vehicle Communication Interface Module (VCIM) - C3 (US4)

Inside Rearview Mirror


Object Number: 872580  Size: CH

Connector Part Information

  • OEM: 917981-2
  • Service: 15306351
  • Description: 16-Way F AMP Multi-Lock 040/070 Hybrid (BK)

Terminal Part Information

  • Pins: 2, 8, 10-12, 14, 15
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Inside Rearview Mirror

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BARE

1705

Shielded Ground

3-7

--

--

Not Used

8

BK

750

Ground

9

--

--

Not Used

10

GY

655

Cellular Microphone Signal

11

D-GN/WH

2514

Keypad Signal

12

L-GN/BK

2515

Keypad Supply Voltage

13

--

--

Not Used

14

YE/BK

2516

Keypad Green LED Signal

15

BN/WH

2517

Keypad Red LED Signal

16

--

--

Not Used

Vehicle Communication Interface Module (VCIM) - C1


Object Number: 814530  Size: CH

Connector Part Information

  • OEM: 917981-1
  • Service: 15306351
  • Description: 16-Way F AMP 040/070 MKII Hybrid (WH)

Terminal Part Information

  • Pins: 2, 3, 6, 8, 11, 15
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Vehicle Communication Interface Module (VCIM) - C1

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BN/WH

2517

Keypad Red LED Signal

3

YE/BK

2516

Keypad Green LED Signal

4-5

--

--

Not Used

6

L-GN/BK

2515

Keypad Supply Voltage

7

--

--

Not Used

8

BK/WH

351

Ground

9-10

--

--

Not Used

11

D-GN/WH

2514

Keypad Signal

12-14

--

--

Not Used

15

OG

2340

Battery Positive Voltage

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 AMP 040/070 MKII Hybrid (WH)

Terminal Part Information

  • Pins: 1, 2, 6, 8-10
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Vehicle Communication Interface Module (VCIM) - C2

Pin

Wire Color

Circuit No.

Function

1

OG/BK

1406

Left Audio Signal (+)

2

L-BU

1405

Audio Common Signal

3-5

--

--

Not Used

6

L-GN

2271

ADG Class 2 Serial Data

7

--

--

Not Used

8

BARE

2012

Drain Wire

9

GY

655

Cellular Microphone Signal

10

BARE

1705

Shielded Ground

11-12

--

--

Not Used

Vehicle Communication Interface Module (VCIM) - C3 (US4)


Object Number: 814531  Size: CH

Connector Part Information

  • OEM: 917983-2
  • Service: 88986322
  • Description: 16-Way F AMP 040/070 MKII Hybrid (BK)

Terminal Part Information

  • Pins: 2, 4, 5
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Vehicle Communication Interface Module (VCIM) - C3 (US4)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PK

5149

Cellular Microphone Signal

3

--

--

Not Used

4

PK/BK

5152

Cellular Microphone Return

5

BARE

1782

Drain Wire

6-16

--

--

Not Used