GM Service Manual Online
For 1990-2009 cars only

Audio Amplifier, C1


Object Number: 73156  Size: CH

Connector Part Information

    • 12110088
    • 24-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A1

BLK

1051

Ground

A2

--

--

Not Used

A3

ORN

2640

Battery Positive Voltage

A4-A8

--

--

Not Used

A9

LT BLU

115

Right Rear Speaker Output (-)

A10

YEL

116

Left Rear Speaker Output (-)

A11

DK GRN

117

Right Front Speaker Output (-)

A12

GRY

118

Left Front Speaker Output (-)

B1

BLK

1051

Ground

B2

--

--

Not Used

B3

ORN

2640

Battery Positive Voltage

B4

--

--

Not Used

B5

WHT

1487

Antenna Enable Signal

B6-B8

--

--

Not Used

B9

DK BLU

46

Right Rear Speaker Output (+)

B10

BRN

199

Left Rear Speaker Output (+)

B11

LT GRN

200

Right Front Speaker Output (+)

B12

TAN

201

Left Front Speaker Output (+)

Audio Amplifier, C2


Object Number: 73151  Size: CH

Connector Part Information

    • 12064799
    • 12-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1952

Right Front Tweeter Speaker Output (-)

B

YEL

1956

Left Front Tweeter Speaker Output (-)

C

RED

1955

Right Rear Speaker Output (-)

D

WHT

1959

Left Rear Speaker Output (-)

E

LT BLU/BLK

315

Right Front Speaker Output (-)

F

LT GRN/BLK

1794

Left Front Speaker Output (-)

G

DK BLU/

WHT

346

Left Front Speaker Output (+)

H

DK GRN/WHT

1795

Right Front Speaker Output (-)

J

TAN

1859

Left Rear Speaker Output (+)

K

TAN

1855

Right Rear Speaker Output (+)

L

BLK

1856

Left Front Tweeter Speaker Output (+)

M

LT GRN

1852

Right Front Tweeter Speaker Output (+)

Digital Radio Receiver


Object Number: 823325  Size: CH

Connector Part Information

    • 15394150
    • 16-Way F Metri-Pack (BLK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BRN/YEL

2059

Auxiliary Audio Left Signal

3

WHT

2058

Auxiliary Audio Right Signal

4-8

--

--

Not Used

9

BLK

1051

Ground

10

PNK/BLK

5152

Audio Common

11

BARE

1705

Drain Wire

12-14

--

--

Not Used

15

DK BLU

2272

Amplifier Class 2 Serial Data

16

ORN

2640

Battery Positive Voltage

Radio, C1


Object Number: 73156  Size: CH

Connector Part Information

    • 12110088
    • 24-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A1

ORN

1044

Radio Class 2 Serial Data

A2-A5

--

--

Not Used

A6

PNK

314

Radio On Signal (w/o 9C1/9C3)

A7

DK BLU

1796

Steering Wheel Controls Signal (w/o 9C1/9C3)

A8

TAN

201

Left Front Speaker Output (+)

A9

GRY

118

Left Front Speaker Output (-)

A10

LT BLU

115

Right Rear Speaker Output (-)

A11

DK BLU

46

Right Rear Speaker Output (+)

A12

BLK

1051

Ground

B1

ORN

2640

Battery Positive Voltage

B2

--

--

Not Used

B3

WHT

1487

Antenna Enable Signal

B4

GRY

8

Instrument Panel Lamp Supply Voltage - 1

B5

BLK

1050

Ground

B6

PPL

2232

Amplifier Present Signal (Monte Carlo)

B7

--

--

Not Used

B8

BRN

199

Left Rear Speaker Output (+)

B9

YEL

116

Left Rear Speaker Output (-)

B10

DK GRN

117

Right Front Speaker Output (-)

B11

LT GRN

200

Right Front Speaker Output (+)

B12

--

--

Not Used

Radio, C2


Object Number: 73151  Size: CH

Connector Part Information

    • 12064799
    • 12-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A-G

--

--

Not Used

H

DK GRN/WHT

368

Remote Radio Right Audio Signal (U2K)

J

BRN/WHT

367

Remote Radio Left Audio Signal (U2K)

K

BLK/WHT

372

Audio Common (U2K)

L

BLK/WHT

372

Remote Radio Audio Output (-)

M

DK GRN/

WHT

368

Remote Radio Right Audio Signal

Radio Antenna Module


Object Number: 773245  Size: CH

Connector Part Information

    • 15359292
    • 2-Way F 58 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

1487

Antenna Enable Signal

B

DK GRN

1927

Radio Antenna/Rear Window Defog Control Module Supply Voltage

Speaker-LF Door


Object Number: 697046  Size: CH

Connector Part Information

    • 12186567
    • 4-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Left Front Speaker Output (-)

B

TAN

201

Left Front Speaker Output (+)

C

YEL

1956

Left Front Tweeter Speaker Output (-)

D

BLK

1856

Left Front Tweeter Speaker Output (+)

Speaker-RF Door


Object Number: 697046  Size: CH

Connector Part Information

    • 12186567
    • 4-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Right Front Speaker Output (-)

B

LT GRN

200

Right Front Speaker Output (+)

C

PPL

1952

Right Front Tweeter Speaker Output (-)

D

LT GRN

1852

Right Front Tweeter Speaker Output (+)

Speaker-LR


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

1859

Left Rear Speaker Output (+) (UQ3)

BRN

199

Left Rear Speaker Output (+) (UW6/U62)

B

WHT

1959

Left Rear Speaker Output (-) (UQ3)

YEL

116

Left Rear Speaker Output (-) (UW6/U62)

Speaker-RR


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

1855

Right Rear Speaker Output (+) (UQ3)

DK BLU

46

Right Rear Speaker Output (+) (UW6/U62)

B

RED

1955

Right Rear Speaker Output (-) (UQ3)

LT BLU

115

Right Rear Speaker Output (-) (UW6/U62)