GM Service Manual Online
For 1990-2009 cars only
Table 1: Audio Amplifier (U85)
Table 2: Radio
Table 3: Speaker-LF Door Midrange
Table 4: Speaker-LF Door Tweeter (U85)
Table 5: Speaker-LR (U85)
Table 6: Speaker-LR (UQ3/UX7)
Table 7: Speaker-RF Door Midrange
Table 8: Speaker-RF Door Tweeter (U85)
Table 9: Speaker-RR (U85)
Table 10: Speaker-RR (UQ3/UX7)

Audio Amplifier (U85)


Object Number: 73222  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

E1

LT GRN

512

Right Front Low Level Audio Signal (+)

E2

TAN

511

Left Front Low Level Audio Signal (+)

E3

DK GRN

1947

Left Front Low Level Audio Signal (-)

E4

BLK

1946

Right Rear Low Level Audio Signal (-)

E5

DK BLU

546

Right Rear Low Level Audio Signal (+)

E6

BRN

599

Left Rear Low Level Audio Signal (+)

E7

BRN/WHT

1999

Left Rear Low Level Audio Signal (-)

E8

BLK/WHT

351

Ground

E9

BLK/WHT

351

Ground

E10

--

--

Not Used

E11

ORN

2940

Battery Positive Voltage

E12

ORN

2940

Battery Positive Voltage

E13

BLK

1856

Left Front Tweeter Speaker Output (+)

E14

YEL

1956

Left Front Tweeter Speaker Output (-)

E15

TAN

201

Left Front Speaker Output (+)

E16

GRY

118

Left Front Speaker Output (-)

F1

LT GRN/

WHT

1948

Right Front Low Level Audio Signal (-)

F2

LT GRN

1852

Right Front Tweeter Speaker Output (+)

F3

PPL

1952

Right Front Tweeter Speaker Output (-)

F4

LT GRN/

BLK

1794

Left Subwoofer Speaker Output (-)

F5

DK BLU/

WHT

346

Left Subwoofer Speaker Output (+)

F6

DK GRN

117

Right Front Speaker Output (-)

F7

LT GRN

200

Right Front Speaker Output (+)

F8

PPL

2232

Amplifier Present Signal

F9

--

--

Not Used

F10

LT BLU/

BLK

315

Right Subwoofer Speaker Output (-)

F11

DK GRN

1795

Right Subwoofer Speaker Output (+)

F12

--

--

Not Used

F13

LT BLU

115

Right Rear Speaker Output (-)

F14

DK BLU

46

Right Rear Speaker Output (+)

F15

BRN

199

Left Rear Speaker Output (+)

F16

YEL

116

Left Rear Speaker Output (-)

Radio


Object Number: 73222  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

E1

DK GRN

835

Entertainment and Comfort Serial Data

E2-E5

--

--

Not Used

E6

DK BLU

1796

Steering Wheel Controls Signal (U85)

E7-E8

--

--

Not Used

E9

BLK/WHT

372

Remote Radio Audio Output (-)

E10

BRN/WHT

367

Remote Radio Left Audio Signal

E11

DK GRN/WHT

368

RemoteRadio Right Audio Signal

E12

BRN

599

Left Rear Low Level Audio Signal (+) (U85)

E12

BRN

199

Left Rear Speaker Output (+) (UQ3/UX7)

E13

BRN/WHT

1999

Left Rear Low Level Audio Signal (-) (U85)

E13

YEL

116

Left Rear Speaker Output (-) (UQ3/UX7)

E14

LT GRN/WHT

1948

Right Front Low Level Audio Signal (-) (U85)

E14

DK GRN

117

Right Front Speaker Output (-) (UQ3/UX7)

E15

LT GRN

512

Right Front Low Level Audio Signal (+) (U85)

E15

LT GRN

200

Right Front Speaker Output (+) (UQ3/UX7)

E16

BLK/WHT

351

Ground

F1

ORN

640

Battery Positive Voltage

F2

YEL

43

Accessory Voltage

F3

DK GRN

145

Antenna Relay Coil Supply Voltage

F4

GRY

8

Instrument Panel Lamp Dimmer Switch Signal

F5

YEL

32

Instrument Panel Lamp Fuse Supply Voltage - 1

F6

PPL

2232

Amplifier Present Signal (U85)

F7-F11

--

--

Not Used

F12

TAN

511

Left Front Low Level Audio Signal (+) (U85)

F12

TAN

201

Left Front Speaker Output (+) (UQ3/UX7)

F13

DK GRN

1947

Left Front Low Level Audio Signal (-) (U85)

F13

GRY

118

Left Front Speaker Output (-) (UQ3/UX7)

F14

BLK

1946

Right Rear Low Level Audio Signal (-) (U85)

F14

LT BLU

115

Right Rear Speaker Output (-) (UQ3/UX7)

F15

DK BLU

546

Right Rear Low Level Audio Signal (+) (U85)

F15

DK BLU

46

Right Rear Speaker Output (+) (UQ3/UX7)

F16

--

--

Not Used

Speaker-LF Door Midrange


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Left Front Speaker Output (-)

B

TAN

201

Left Front Speaker Output (+)

Speaker-LF Door Tweeter (U85)


Object Number: 766913  Size: CH

Connector Part Information

    • 12052833
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

1956

Left Front Tweeter Speaker Output (-)

B

BLK

1856

Left Front Tweeter Speaker Output (+)

Speaker-LR (U85)


Object Number: 130637  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

YEL

116

Left Rear Speaker Output (-)

B

BRN

199

Left Rear Speaker Output (+)

C

LT GRN/

BLK

1794

Left Subwoofer Speaker Output (-)

D

DK BLU/

WHT

346

Left Subwoofer Speaker Output (+)

Speaker-LR (UQ3/UX7)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

YEL

116

Left Rear Speaker Output (-)

B

BRN

199

Left Rear Speaker Output (+)

Speaker-RF Door Midrange


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Right Front Speaker Output (-)

B

LT GRN

200

Right Front Speaker Output (+)

Speaker-RF Door Tweeter (U85)


Object Number: 766913  Size: CH

Connector Part Information

    • 12052833
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1952

Right Front Tweeter Speaker Output (-)

B

LT GRN

1852

Right Front Tweeter Speaker Output (+)

Speaker-RR (U85)


Object Number: 130637  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT BLU

115

Right Rear Speaker Output (-)

B

DK BLU

46

Right Rear Speaker Output (+)

C

LT BLU/

BLK

315

Right Subwoofer Speaker Output (-)

D

DK GRN

1795

Right Subwoofer Speaker Output (+)

Speaker-RR (UQ3/UX7)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT BLU

115

Right Rear Speaker Output (-)

B

DK BLU

46

Right Rear Speaker Output (+)