GM Service Manual Online
For 1990-2009 cars only
Table 1: Audio Amplifier - C1 (UQ3)
Table 2: Audio Amplifier - C2 (UQ3)
Table 3: Digital Radio Receiver (U2K)
Table 4: Radio - C1
Table 5: Radio - C2 (UE1/UQ3/UK6)
Table 6: Rear Seat Audio Control (UQ3/UK6)
Table 7: Rear Seat Entertainment (RSE) Assembly (U32)
Table 8: Speaker - LF Door
Table 9: Speaker - LR Door
Table 10: Speaker - LR (Pontiac UQ3 Only)
Table 11: Speaker - LR Subwoofer (Buick UQ3)
Table 12: Speaker - RF Door
Table 13: Speaker - RR Door
Table 14: Speaker - RR (Pontiac UQ3 Only)
Table 15: Speaker - RR Subwoofer (Buick UQ3)
Table 16: Steering Wheel Controls - Left (UK3)
Table 17: Steering Wheel Controls - Right (UK3)
Table 18: Tailgate Audio Controls (Pontiac W/UQ3)
Table 19: Tweeter - LF Door
Table 20: Tweeter - RF Door

Audio Amplifier - C1 (UQ3)


Object Number: 73158  Size: CH

Connector Part Information

    • 12110626
    • 8-Way F Metri-Pack 280 Series Flexlock (WH)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

OG

926

Amplifier Present Signal

C-D

--

--

Not Used

E

PU

493

Rear Seat Audio Enable Signal

PU

493

Rear Seat Audio Enable Signal (Buick)

F

PU

927

Amplifier Control

G

OG

2040

Battery Positive Voltage

H

BK/WH

351

Ground

Audio Amplifier - C2 (UQ3)


Object Number: 73156  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

L-GN/BK

1794

Left Rear Subwoofer Speaker Output (-)

A2

D-BU/WH

346

Left Rear Subwoofer Speaker Output (+)

A3

L- BU/BK

315

Right Rear Subwoofer Speaker Output (-)

A4

D-GN

1795

Right Rear Subwoofer Speaker Output (+)

A5

WH

1959

Left Rear Midrange Speaker Output (-) (Pontiac)

YE

1956

Left Front Tweeter Speaker Output (-) (Buick)

A6

TN

1859

Left Rear Midrange Speaker Output (+) (Pontiac)

BK

1856

Left Front Tweeter Speaker Output (+) (Buick)

A7

RD

1955

Right Rear Midrange Speaker Output (-) (Pontiac)

PU

1952

Right Front Tweeter Speaker Output (-) (Buick)

A8

TN

1855

Right Rear Midrange Speaker Output (+) (Pontiac)

L-GN

1852

Right Front Tweeter Speaker Output (+) (Buick)

A9

D-BU

46

Right Rear Speaker Output (+) (Pontiac)

L-GN

200

Right Front Speaker Output (+) (Buick)

A10

L-BU

115

Right Rear Speaker Output (-) (Pontiac)

D-GN

117

Right Front Speaker Output (-) (Buick)

A11

BN

199

Left Rear Speaker Output (+) (Pontiac)

TN

201

Left Front Speaker Output (+) (Buick)

A12

YE

116

Left Rear Speaker Output (-) (Pontiac)

GY

118

Left Front Speaker Output (-) (Buick)

B1

BK/WH

1946

Right Rear Low Level Audio Signal (-) (Pontiac)

L-GN

1948

Right Front Low Level Audio Signal (-) (Buick)

B2

D-BU

546

Right Rear Low Level Audio Signal (+) (Pontiac)

L-GN

512

Right Front Low Level Audio Signal (+) (Buick)

B3

BN

1999

Left Rear Low Level Audio Signal (-) (Pontiac)

D-GN

1947

Left Front Low Level Audio Signal (-) (Buick)

B4

BN

599

Left Rear Low Level Audio Signal (+) (Pontiac)

TN

511

Left Front Low Level Audio Signal (+) (Buick)

B5

L-GN

1948

Right Front Low Level Audio Signal (-) (Pontiac)

BK/WH

1946

Right Rear Low Level Audio Signal (-) (Buick)

B6

L-GN/BK

512

Right Front Low Level Audio Signal (+) (Pontiac)

D-BU

546

Right Rear Low Level Audio Signal (+) (Buick)

B7

D-GN

1947

Left Front Low Level Audio Signal (-) (Pontiac)

BN

1999

Left Rear Low Level Audio Signal (-) (Buick)

B8

TN

511

Left Front Low Level Audio Signal (+) (Pontiac)

BK/WH

599

Left Rear Low Level Audio Signal (+) (Buick)

B9

L-GN

200

Right Front Speaker Output (+) (Pontiac)

D-BU

46

Right Rear Speaker Output (+) (Buick)

B10

D-GN

117

Right Front Speaker Output (-) (Pontiac)

L-BU

115

Right Rear Speaker Output (-) (Buick)

B11

TN

201

Left Front Speaker Output (+) (Pontiac)

BN

199

Left Rear Speaker Output (+) (Buick)

B12

GY

118

Left Front Speaker Output (-) (Pontiac)

YE

116

Left Rear Speaker Output (-) (Buick)

Digital Radio Receiver (U2K)


Object Number: 823325  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BN/WH

367

Remote Radio Left Audio Signal

3

D-GN/WH

368

Remote Radio Right Audio Signal

4-8

--

--

Not Used

9

BK

351

Ground

10

BK/WH

372

Remote Radio Audio Output (-)

11

BARE

7814

Drain Wire

12-14

--

--

Not Used

15

TN

9807

Class 2 Serial Data

16

OG

3840

Battery Positive Voltage

Radio - C1


Object Number: 73156  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

OG

1044

Radio Class 2 Serial Data

A2

--

--

Not Used

A3

PU

493

Rear Seat Audio Enable Signal (UQ3)

A4-A5

--

--

Not Used

A6

PU

1375

Remote Radio Control Supply Voltage

A7

D-BU

1796

Steering Wheel Controls Signal

A8

TN

201

Left Front Speaker Output (+) (w/o UQ3)

TN

511

Left Front Low Level Audio Signal (+) (UQ3)

A9

GY

118

Left Front Speaker Output (-) (w/o UQ3)

D-GN

1947

Left Front Low Level Audio Signal (-) (UQ3)

A10

L-BU

115

Right Rear Speaker Output (-) (w/o UQ3)

BK

1946

Right Rear Low Level Audio Signal (-) (UQ3)

A11

D-BU

46

Right Rear Speaker Output (+) (w/o UQ3)

D-BU

546

Right Rear Low Level Audio Signal (+) (UQ3)

A12

BK/WH

351

Ground

B1

OG

5640

Battery Positive Voltage

B2

--

--

Not Used

B3

PU

927

Amplifier Control (UQ3)

B4

GY

8

Instrument Panel Lamp Supply Voltage - 1

B5

BK

1450

Ground

B6

OG

926

Amplifier Present Signal (UQ3)

B7

L-GN

1011

Remote Radio Control Signal (RSA)

B8

BN

199

Left Rear Speaker Output (+) (w/o UQ3)

BN/WH

599

Left Rear Low Level Audio Signal (+) (UQ3)

B9

YE

116

Left Rear Speaker Output (-) (w/o UQ3)

BN

1999

Left Rear Low Level Audio Signal (-) (UQ3)

B10

D-GN

117

Right Front Speaker Output (-) (w/o UQ3)

L-GN

1948

Right Front Low Level Audio Signal (-) (UQ3)

B11

L-GN

200

Right Front Speaker Output (+) (w/o UQ3)

L-GN/BK

512

Right Front Low Level Audio Signal (+) (UQ3)

B12

--

--

Not Used

Radio - C2 (UE1/UQ3/UK6)


Object Number: 73151  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

BARE

814

Drain Wire (U32)

D

--

--

Not Used

E

D-GN

389

Vehicle Speed Signal

F-G

--

--

Not Used

H

D-GN/WH

368

Remote Radio Right Audio Signal

J

BN/WH

367

Remote Radio Left Audio Signal

K

BK/WH

372

Remote Radio Audio Output (-)

L

BK/WH

9372

Remote Radio Audio Output (-)

M

BN/WH

9367

Remote Radio Left Audio Signal

Rear Seat Audio Control (UQ3/UK6)


Object Number: 73152  Size: CH

Connector Part Information

    • 12110259
    • 16-Way F Micro-Pack 100 Series (GN)

Pin

Wire Color

Circuit No.

Function

A1

BK

1946

Right Rear Low Level Audio Signal (-)

A2

D-BU

546

Right Rear Low Level Audio Signal (+)

A3

BN

1999

Left Rear Low Level Audio Signal (-)

A4

BN

599

Left Rear Low Level Audio Signal (+)

A5

L-GN

1011

Remote Radio Control Signal

A6

GY

8

Instrument Panel Lamp Supply Voltage

A7

--

--

Not Used

A8

PU

1375

Remote Radio Control Supply Voltage

B1

L-BU

115

Right Rear Speaker Output (-) (Base Radio)

B2

D-BU

46

Right Rear Speaker Output (+) (Base Radio)

B3

YE

116

Left Rear Speaker Output (-) (Base Radio)

B4

BN

199

Left Rear Speaker Output (+) (Base Radio)

B5

PU

493

Rear Seat Audio Enable Signal

B6

BK

650

Ground

B7

--

--

Not Used

B8

BN

9

Park Lamp Supply Voltage

Rear Seat Entertainment (RSE) Assembly (U32)


Object Number: 850857  Size: CH

Connector Part Information

    • 15341086
    • 12-Way F Multi-Lock Series (BK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PK

1045

VCM Class 2 Serial Data

3-4

--

--

Not Used

5

D-GN/WH

368

Remote Radio Right Audio Signal

6

BN/WH

367

Remote Radio Left Audio Signal

7

BK/WH

351

Ground

8

--

--

Not Used

9

OG

4240

Battery Positive Voltage

10-11

--

--

Not Used

12

BK/WH

372

Remote Audio Output (-)

Speaker - LF Door


Object Number: 365973  Size: CH

Connector Part Information

    • 12186847
    • 2-Way F Metri-Pack 150 Series (WH)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LR Door


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - LR (Pontiac UQ3 Only)


Object Number: 130637  Size: CH

Connector Part Information

    • 12064760
    • 4-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

1794

Left or Rear Subwoofer Speaker Output (-)

B

D-BU/WH

346

Left Subwoofer Speaker Output (+)

C

WH

1959

Left Rear Midrange Speaker Output (-)

D

TN

1859

Left Rear Midrange Speaker Output (+)

Speaker - LR Subwoofer (Buick UQ3)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

1794

Left Subwoofer Speaker Output (-)

B

D-BU/WH

346

Left Subwoofer Speaker Output (-)

Speaker - RF Door


Object Number: 365973  Size: CH

Connector Part Information

    • 12186847
    • 2-Way F Metri-Pack 150 Series (WH)

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

Speaker - RR Door


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

Speaker - RR (Pontiac UQ3 Only)


Object Number: 130637  Size: CH

Connector Part Information

    • 12064760
    • 4-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

315

Right Subwoofer Speaker Output (-)

B

D-GN

1795

Right Subwoofer Speaker Output (+)

C

RD

1955

Right Rear Midrange Speaker Output (-)

D

TN

1855

Right Rear Midrange Speaker Output (+)

Speaker - RR Subwoofer (Buick UQ3)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

315

Right Subwoofer Speaker Output (-)

B

D-GN

1795

Right Subwoofer Speaker Output (+)

Steering Wheel Controls - Left (UK3)


Object Number: 605511  Size: CH

Connector Part Information

    • 50579405
    • 5-Way F (BK)

Pin

Wire Color

Circuit No.

Function

1

D-BU

1796

Steering Wheel Controls Signal

2

--

--

Not Used

3

BK

350

Ground

4

YE/BK

1458

Instrument Panel Lamp Supply Voltage - 4

5

D-BU

1796

Steering Wheel Controls Signal

Steering Wheel Controls - Right (UK3)


Object Number: 605507  Size: CH

Connector Part Information

    • 50579406
    • 6-Way F (BK)

Pin

Wire Color

Circuit No.

Function

1

PU

1375

Remote Radio Control Supply Voltage

2

D-BU

1796

Steering Wheel Controls Signal

3

GY/BK

14

Instrument Panel Lamp Supply Voltage - 4

4

--

--

Not Used

5

BK

350

Ground

6

D-BU

1796

Steering Wheel Controls Signal

Tailgate Audio Controls (Pontiac W/UQ3)


Object Number: 287981  Size: CH

Connector Part Information

    • 12092162
    • 4-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PU

1375

Remote Radio Control Supply Voltage

B

--

--

Not Used

C

D-BU

1796

Steering Wheel Controls Signal

D

--

--

Not Used

Tweeter - LF Door


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Tweeter - RF Door


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)