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
Table 6: Speaker - LF Door (UQ3)
Table 7: Speaker - LF Door (UQ4)
Table 8: Speaker - LF Door Tweeter (UQ3)
Table 9: Speaker - RF Door (UQ3)
Table 10: Speaker - RF Door (UQ4)
Table 11: Speaker - RF Door Tweeter (UQ3)
Table 12: Speaker - LR (UQ3)
Table 13: Speaker - LR (UQ4)
Table 14: Speaker - RR (UQ3)
Table 15: Speaker - RR (UQ4)
Table 16: Speaker - Subwoofer (UQ3)
Table 17: Steering Wheel Controls Left (UK3)
Table 18: Steering Wheel Controls Right (UK3)

Audio Amplifier C1 (UQ3)


Object Number: 73156  Size: CH

Connector Part Information

    • OEM: 12110088
    • Service: See Catalog
    •  24-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

A1

L-GN/BK

1794

Left/Rear Subwoofer Speaker (-)

A2

D-BU/WH

346

Left/Rear Subwoofer Speaker (+)

A3

L-BU/BK

115

Right Rear Speaker Signal (-)

A4

D-BU

46

Right Rear Speaker (+)

A5

BN

199

Left Rear Speaker (+)

A6

YE/BK

116

Left Rear Speaker Signal (-)

A7

D-BU

546

Right Rear Low Level Audio Signal

A8

BN/WH

599

Left Rear Low Level Audio Signal

A9

TN

1946

Right Rear Low Level Audio (-)

A10

BN

1999

Left Rear Low Level Audio (-)

A11

D-GN

117

Right Front Speaker Signal (-) (1)

A12

L-GN

200

Right Front Speaker (+) (1)

B1

L-BU/BK

315

Right Subwoofer Speaker (-)

B2

D-GN

1795

Right Subwoofer Speaker (+)

B3

D-GN

1947

Left Front Low Level Audio (-)

B4

L-GN

1948

Right Front Low Level Audio (-)

B5

TN

511

Left Front Low Level Audio Signal

B6

L-GN/WH

512

Right Front Low Level Audio Signal

B7-B10

--

--

Not Used

B11

GY

118

Left Front Speaker Signal (-) (1)

B12

TN

201

Left Front Speaker (+) (1)

Audio Amplifier C2 (UQ3)


Object Number: 73158  Size: CH

Connector Part Information

    • OEM: 12110626
    • Service: See Catalog
    •  8-Way F Metri-Pack 280 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A

BK/WH

1051

Signal Ground

B

BK/WH

1051

Signal Ground

C

--

--

Not Used

D

L-GN

1011

Remote Radio Control Signal

E

PK

314

Radio On Signal

F

--

--

Not Used

G

RD/WH

640

Battery Positive Voltage

H

RD/WH

640

Battery Positive Voltage

Digital Radio Receiver (U2K)


Object Number: 1454407  Size: CH

Connector Part Information

    • OEM: 15416970
    • Service: See Catalog
    •  16-Way F Micro 64 Modular (BK)

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 (1)

4

--

--

Not Used

5

D-GN

5060

Low Speed GMLAN Serial Data

6-8

--

--

Not Used

9

BK/WH

751

Signal Ground

10

TN/WH

372

Remote Radio Audio (-)

11

BARE

814

Drain Wire

12-15

--

--

Not Used

16

RD/WH

1340

Battery Positive Voltage

Radio C1


Object Number: 130690  Size: CH

Connector Part Information

    • OEM: 12110206
    • Service: See Catalog
    •  24-Way F Micro-Pack 100 Series (L-BU)

Pin

Wire Color

Circuit No.

Function

A1

GY

118

Left Front Speaker Signal (-) (1) (U1C)

A1

D-GN

1947

Left Front Low Level Audio (-) (US8)

A2

TN

201

Left Front Speaker (+) (1) (U1C)

A2

TN

511

Left Front Low Level Audio Signal (US8)

A3

L-BU

115

Right Rear Speaker Signal (-) (U1C)

A3

TN

1946

Right Rear Low Level Audio (-) (US8)

A4

D-BU

46

Right Rear Speaker (+) (U1C)

A4

D-BU

546

Right Rear Low Level Audio Signal (US8)

A5

BN

199

Left Rear Speaker (+) (U1C)

A5

BN/WH

599

Left Rear Low Level Audio Signal (US8)

A6

YE

116

Left Rear Speaker Signal (-) (U1C)

A6

BN

1999

Left Rear Low Level Audio (-) (US8)

A7

L-GN

200

Right Front Speaker (+) (1) (U1C)

A7

L-GN/WH

512

Right Front Low Level Audio Signal (US8)

A8

D-GN

117

Right Front Speaker Signal (-) (1) (U1C)

A8

L-GN

1948

Right Front Low Level Audio (-) (US8)

A9

D-BU

1796

Steering Column Radio Control Signal (UK3)

A10

WH/BK

644

10-Volt Reference (US8)

A11

--

--

Not Used

A12

BK/WH

1051

Signal Ground

B1

RD/WH

1140

Battery Positive Voltage

B2

--

--

Not Used

B3

L-GN

1011

Remote Radio Control Signal (US8)

B4-B5

--

--

Not Used

B6

PK

314

Radio On Signal

B7-B8

--

--

Not Used

B9

D-GN

5060

Low Speed GMLAN Serial Data

B10-B12

--

--

Not Used

Radio C2


Object Number: 73151  Size: CH

Connector Part Information

    • OEM: 12064799
    • Service: See Catalog
    •  12-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

A-G

--

--

Not Used

H

D-GN/WH

368

Right Audio Signal (+)

J

BN/WH

367

Left Audio Signal (+)

K

TN/WH

372

Audio Common

L

OG/BK

2061

Cellular telephone voice Low Reference (UE1)

M

PK/BK

2062

Cellular Telephone Voice Signal (UE1)

Speaker - LF Door (UQ3)


Object Number: 130724  Size: CH

Connector Part Information

    • OEM: 12064869
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

GY/BK

118

Left Front Speaker Signal (-) (1)

B

TN

201

Left Front Speaker (+) (1)

Speaker - LF Door (UQ4)


Object Number: 280768  Size: CH

Connector Part Information

    • OEM: 12052832
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Signal (-) (1)

B

TN

201

Left Front Speaker (+) (1)

Speaker - LF Door Tweeter (UQ3)


Object Number: 766913  Size: CH

Connector Part Information

    • OEM: 15485606
    • Service: See Catalog
    •  2-Way M Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Signal (-) (1)

B

TN

201

Left Front Speaker (+) (1)

Speaker - RF Door (UQ3)


Object Number: 130724  Size: CH

Connector Part Information

    • OEM: 12064869
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

D-GN/WH

117

Right Front Speaker Signal (-) (1)

B

L-GN

200

Right Front Speaker (+) (1)

Speaker - RF Door (UQ4)


Object Number: 280768  Size: CH

Connector Part Information

    • OEM: 12052832
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Signal (-) (1)

B

L-GN

200

Right Front Speaker (+) (1)

Speaker - RF Door Tweeter (UQ3)


Object Number: 766913  Size: CH

Connector Part Information

    • OEM: 15485606
    • Service: See Catalog
    •  2-Way M Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Signal (-) (1)

B

L-GN

200

Right Front Speaker (+) (1)

Speaker - LR (UQ3)


Object Number: 130724  Size: CH

Connector Part Information

    • OEM: 12064869
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

YE/BK

116

Left Rear Speaker Signal (-)

B

BN/BK

199

Left Rear Speaker (+)

Speaker - LR (UQ4)


Object Number: 280768  Size: CH

Connector Part Information

    • OEM: 12052832
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Signal (-)

B

BN

199

Left Rear Speaker (+)

Speaker - RR (UQ3)


Object Number: 130724  Size: CH

Connector Part Information

    • OEM: 12064869
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

115

Right Rear Speaker Signal (-)

B

D-BU/WH

46

Right Rear Speaker (+)

Speaker - RR (UQ4)


Object Number: 280768  Size: CH

Connector Part Information

    • OEM: 12052832
    • Service: See Catalog
    •  2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Signal (-)

B

D-BU

46

Right Rear Speaker (+)

Speaker - Subwoofer (UQ3)


Object Number: 130637  Size: CH

Connector Part Information

    • OEM: 12064760
    • Service: See Catalog
    •  4-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

315

Right Subwoofer Speaker (-)

B

D-GN

1795

Right Subwoofer Speaker (+)

C

D-BU/WH

346

Left/Rear Subwoofer Speaker (+)

D

L-GN/BK

1794

Left/Rear Subwoofer Speaker (-)

Steering Wheel Controls Left (UK3)


Object Number: 605507  Size: CH

Connector Part Information

    • OEM: 50-57-9406
    • Service: See Catalog
    •  6-Way F Molex (BK)

Pin

Wire Color

Circuit No.

Function

1

L-GN

1011

Remote Radio Control Signal

2

GY

8

Instrument Panel Lamps Supply Voltage

3

BK

151

Ground

4

D-BU

1796

Steering Wheel Controls Signal

5

PK

339

Ignition 1 Voltage

6

YE

397

Cruise Control On Switch Signal

Steering Wheel Controls Right (UK3)


Object Number: 1333392  Size: CH

Connector Part Information

    • OEM: 50-57-9407
    • Service: See Catalog
    •  7-Way F Molex (BK)

Pin

Wire Color

Circuit No.

Function

1

WH/BK

644

10-Volt Reference

2

GY

8

Instrument Panel Lamps Supply Voltage

3

BK

651

Ground

4

D-BU

1796

Steering Wheel Controls Signal

5

L-GN

1011

Remote Radio Control Signal

6

YE

397

Cruise Control On Switch Signal

7

GY/BK

1884

Cruise Control Switch Signal