GM Service Manual Online
For 1990-2009 cars only

Inside Rearview Mirror


Object Number: 655810  Size: CH

Connector Part Information

    • 15324871
    • 16-Way Metri-Pack 150 Series BLK

Pin

Wire Color

Circuit No.

Function

1

GRY

157

Interior Lamp Control

2

BARE

1705

Drain Wire

3-5

--

--

Not Used

6

ORN

1732

Courtesy Lamps Supply Voltage

7

--

--

Not Used

8

BLK

850

Ground

9

LT GRN

24

Backup Lamp Supply Voltage

10

GRY

655

Cellular Telephone Microphone Signal

11

DK GRN/WHT

2514

Keypad Signal

12

LT GRN/BLK

2515

Keypad Supply Voltage

13

BRN

41

Ignition 3 Voltage

14

YEL/BLK

2516

Keypad Green LED Signal

15

BRN/WHT

2517

Keypad Red LED Signal

16

--

--

Not Used

Vehicle Interface Unit (VIU) C1


Object Number: 258912  Size: CH

Connector Part Information

    • 12110113
    • 32-Way F Micro-Pack 150 Series RED

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

LT GRN/BLK

1098

VCM Class 2 Serial Data

A3

DK GRN

835

Entertainment and Comfort Serial Data

A4-A5

--

--

Not Used

A6

BLK/WHT

372

Remote Radio Audio Output (-)

A7

DK GRN/WHT

368

Remote Radio Right Audio Signal

A8

BRN/WHT

367

Remote Radio Left Audio Signal

A9

BARE

814

Audio Drain Wire

A10

LT BLU

1235

Audio Low Reference

A11

BRN/WHT

2506

Audio Return Signal

A12

DK GRN/WHT

2507

Audio Transmit Signal

A13

BARE

1792

Drain Wire

A14

GRY/BLK

2508

Microphone Signal

A15

--

--

Not Used

A16

ORN

2240

Battery Positive Voltage

B1-B8

--

--

Not Used

B9

GRY

655

Cellular Telephone Microphone Signal

B10

BARE

1705

Drain Wire

B11

TAN/BLK

2510

OnStar Serial Data Return

B12

DK BLU/WHT

2511

OnStar Serial Data (-)

B13

LT BLU/BLK

2512

OnStar Serial Data (+)

B14

GRY/BLK

1798

Ground

B15

PPL/WHT

2513

Ignition ON Signal

B16

--

--

Not Used

Vehicle Interface Unit (VIU) C2


Object Number: 73222  Size: CH

Connector Part Information

    • 12110115
    • 32-Way F Micro-Pack 100 Series BLU

Pin

Wire Color

Circuit No.

Function

E1

BLK/WHT

351

Ground

E2-E3

--

--

Not Used

E4

DK GRN/WHT

2514

Keypad Signal

E5

YEL/BLK

2516

Keypad Green LED Signal

E6

LT GRN/BLK

2515

Keypad Supply Voltage

E7-E15

--

--

Not Used

E16

ORN

2140

Battery Positive Voltage

F1

BLK/WHT

351

Ground

F2-F8

--

--

Not Used

F9

BRN/WHT

2517

Keypad Red LED Signal

F10-F16

--

--

Not Used

F2

ORN

1340

Battery Positive Voltage

F3

ORN

1340

Battery Positive Voltage

F4-F5

--

--

Not Used

F6

PNK

239

Ignition 1 Voltage

F7

ORN/BLK

781

Driver Door Lock Switch Unlock Signal

F8

--

--

Not Used

F9

BRN/WHT

2517

Keypad Red LED Signal

F10

--

--

Not Used

F11

YEL

43

Accessory Voltage

F12-F16

--

--

Not Used

Vehicle Communication Unit (VCU)


Object Number: 585586  Size: CH

Connector Part Information

    • 12059028
    • 25-Way F BLK

Pin

Wire Color

Circuit No.

Function

1

DK GRN/WHT

2507

Audio Transmit Signal

2

--

--

Not Used

3

GRY/BLK

1798

Ground

4

ORN

2240

Battery Positive Voltage

5

PPL/WHT

2513

Ignition ON Signal

6

BRN/WHT

2506

Audio Return signal

7-10

--

--

Not Used

11

LT BLU/BLK

2512

OnStar Serial (+)

12

DK BLU/WHT

2511

OnStar Serial Data (-)

13

--

--

Not Used

14

BARE

1792

Drain Wire

15

GRY/BLK

2508

Microphone Signal

16-17

--

--

Not Used

18

TAN/BLK

2510

OnStar Serial Data - Return

19-23

--

--

Not Used

24

LT BLU

1235

Audio Low Reference

25

--

--

Not Used