GM Service Manual Online
For 1990-2009 cars only
Table 1: Compact Disc (CD) Changer
Table 2: Radio (IRC)
Table 3: Radio Amplifier C1
Table 4: Radio Amplifier C2
Table 5: Radio Amplifier C3
Table 6: Radio Interface Module (RIM) C1
Table 7: Radio Interface Module (RIM) C2
Table 8: Steering Wheel Control Switch
Table 9: Right Rear Door Tweeter Speaker
Table 10: Right Rear Speaker (DeVille W/UQ6)
Table 11: Right Rear Speaker (Eldorado W/UQ4)
Table 12: Left Front Door Speaker
Table 13: LH Front Door Tweeter Speaker
Table 14: Radio Speaker
Table 15: RH Front Door Bose® Radio Speaker
Table 16: Right Front Door Tweeter Speaker
Table 17: Left Rear Door Tweeters Speaker (W/UQ6)
Table 18: Right Front Door Midrange Speaker
Table 19: Power Antenna Relay C1

Compact Disc (CD) Changer


Object Number: 62435  Size: CH

Connector Part Information

    • 12047531
    • 10-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

BRN/WHT

367

Remote Radio Signal - Left Audio

2

DK GRN/WHT

368

Remote Radio Signal - Right Audio

3

BLK/WHT

372

Remote Radio Return - Audio

4

BARE

1792

Drain Wire Return

5

ORN

2640

Fused Output - Battery

6

--

--

Not Used

7

BLK

1051

Radio Ground

8-9

--

--

Not Used

10

DK GRN

835

Diagnostic Signal - E and C

Radio (IRC)


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

Serial Data - E and C

E2-E4

--

--

Not Used

E5

GRY

8

IP Lamp Feed

E6

PPL

1807

Class 2 Serial Data Line

E7

LT BLU/BLK

659

Cellular Telephone Return - Voice

E8

DK BLU

658

Cellular Telephone Signal - Voice

E9

BLK/WHT

372

Remote Radio Return - Audio

E10

BRN/WHT

367

Remote Radio Signal - Left Audio

E11

DK GRN/WHT

368

Remote Radio Signal - Right Audio

E12

BRN

199

Speaker Feed, Left Rear (with UW6)

E12

TAN

511

Audio Signal, Left Front, Low Level (with UQ4 or UQ6)

E13

YEL

116

Speaker Return, Left Rear (with UW6)

E13

DK GRN

1947

Audio Return, Left Front, Low Level (with UQ4 or UQ6)

E14

DK GRN

117

Speaker Return, Left Front (with UW6)

E14

BARE

1782

Drain Wire Return (with UQ4 or UQ6)

E15

LT GRN

200

Speaker Feed, Right Front (with UW6)

E15

BARE

1782

Drain Wire Return (with UQ4 or UQ6)

E16

BLK

1051

Radio Ground

F1

ORN

40

Fused Output - Battery

F2

--

--

Not Used

F3

DK GRN

145

Power Antenna Relay - Coil Feed

F4

ORN/BLK

726

Reference Voltage Feed - 16 V

F5

BLK

1250

Ground

F6

PPL

1807

Class 2 Serial Data Line

F7-F10

--

--

Not Used

F11

BARE

1782

Drain Wire Return (with UQ4 or UQ6)

F12

TAN

201

Speaker Feed, Left Front (with UW6)

F12

PPL/WHT

652

Chime Module Signal - Bit 2 (with UQ4 or UQ6)

F13

GRY

118

Speaker Return, Left Front (with UW6)

F13

DK BLU/WHT

653

Chime Module Signal - Bit 1 (with UQ4 or UQ6)

F14

GRY

115

Speaker Return, Right Rear (with UW6)

F14

LT GRN

1948

Audio Return, Right Front, Low Level (with UQ4 or UQ6)

F15

DK BLU

46

Speaker Feed, Right Rear (with UW6)

F15

LT GRN

512

Audio Signal, Right Front, Low Level (with UQ4 or UQ6)

F16

--

--

Not Used

Radio Amplifier C1


Object Number: 130689  Size: CH

Connector Part Information

    • 12110244
    • 24-Way F Micro-Pack 100 Series (PNK)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

ORN

1853

Speaker Feed, Right Front (Midrange)

A3

RED

1955

Speaker Return, Right Front (Midrange)

A4

--

--

Not Used

A5

TAN

1855

Speaker Feed, Right Rear (Midrange)

A6

LT BLU

1957

Speaker Return, Left Front (Midrange)

A7

--

--

Not Used

A8

DK BLU

1857

Speaker Feed, Left Front (Midrange)

A9

WHT

1959

Speaker Return, Left Rear (Midrange)

A10

--

--

Not Used

A11

WHT

1859

Speaker Feed, Left Rear (Midrange)

A12

--

--

Not Used

B1

DK GRN

1953

Speaker Return, Right Front (Midrange)

B2

PPL

1807

Class 2 Serial Data Line

B3

PPL

1807

Class 2 Serial Data Line

B4

DK GRN

1947

Audio Return, Left Front, Low Level

B5

TAN

511

Audio Signal, Left Front, Low Level

B6

LT GRN/BLK

1948

Audio Return, Right Front, Low Level

B7

LT GRN

512

Audio Signal, Right Front, Low Level

B8

BRN/WHT

367

Remote Audio Signal, Left

B9

BLK/WHT

372

Remote Audio Return

B10

--

--

Not Used

B11

DK GRN/WHT

368

Remote Audio Signal, Right

B12

--

--

Not Used

Radio Amplifier C2


Object Number: 333019  Size: CH

Connector Part Information

    • 12110245
    • 32-Way Micro-Pack 100 Series (PNK)

Pin

Wire Color

Circuit No.

Function

C1

YEL

1860

Speaker Feed - Center IP

C2

LT GRN/BLK

1794

Speaker Subwoofer Return

C3

--

--

Not Used

C4

DK BLU/WHT

346

Speaker Subwoofer Feed

C5

WHT

1854

Speaker Feed, Right Rear (Tweeter)

C6

YEL

1949

Speaker Return, Right Rear (Tweeter)

C7

PPL

1958

Speaker Return, Left Rear (Tweeter)

C8

RED

1858

Speaker Feed, Left Rear (Tweeter)

C9

LT BLU

315

Subwoofer Speaker Return, Right

C10

--

--

Not Used

C11

DK GRN

1795

Speaker Subwoofer Feed, Right Rear

C12

PPL

1952

Speaker Return, Right Front (Tweeter)

C13

LT GRN

1852

Speaker Feed, Right Front (Tweeter)

C14

YEL

1956

Speaker Return, Left Front (Tweeter)

C15

BLK

1856

Speaker Feed, Left Front (Tweeter)

C16

--

--

Not Used

D1

LT BLU

1960

Speaker Return - Center IP

D2-D11

--

--

Not Used

D12

DK BLU/WHT

653

Chime Module Signal - Bit 1

D13

PPL/WHT

652

Chime Module Signal - Bit 2

D14

LT BLU/BLK

659

Cellular Telephone Return - Voice (not present on Export)

D15

DK BLU

658

Cellular Telephone Signal - Voice (not present on Export)

D16

--

--

Not Used

Radio Amplifier C3


Object Number: 35456  Size: CH

Connector Part Information

    • 12064749
    • 2-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1051

Radio Ground

B

ORN

140

Fused Output - Battery

Radio Interface Module (RIM) C1


Object Number: 130690  Size: CH

Connector Part Information

    • 12110206
    • 24-Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A1

BLK

1051

Radio Ground

A2

BLK

1946

Audio Return, Right Rear, Low Level

A3

DK BLU

546

Audio Signal, Right Rear, Low Level

A4

BARE

1792

Drain Wire Return

A5

BRN

1999

Audio Return, Left Rear, Low Level

A6

BRN

599

Audio Signal, Left Rear, Low Level

A7

BARE

1792

Drain Wire Return

A8

LT GRN

1948

Audio Return, Right Front, Low Level

A9

BLK

1875

Speaker Feed 2, Right Front

A10

BARE

1792

Drain Wire Return

A11

DK GRN

1947

Audio Return, Left Front, Low Level

A12

LT BLU

1874

Speaker Feed 2, Left Front

B1

ORN

40

Fused Output - Battery

B2

PPL

1807

Class 2 Serial Data Line

B3

PPL

1807

Class 2 Serial Data Line

B4

DK GRN

1947

Audio Return, Left Front, Low Level

B5

TAN

511

Audio Signal, Left Front, Low Level

B6

LT GRN

1948

Audio Return, Right Front, Low Level

B7

LT GRN

512

Audio Signal, Right Front, Low Level

B8

BRN/WHT

367

Remote Audio Signal, Left

B9

BLK/WHT

372

Remote Audio Return

B10

--

--

Not Used

B11

DK GRN/WHT

368

Remote Audio Signal, Right

B12

BARE

1792

Drain Wire Return

Radio Interface Module (RIM) C2


Object Number: 73157  Size: CH

Connector Part Information

    • 12110207
    • 32-Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

C1-C16

--

--

Not Used

D1

--

--

Not Used

D2

ORN

360

Amplifier Feed

D3-D11

--

--

Not Used

D12

DK BLU/WHT

653

Chime Module Signal - Bit 1

D13

PPL/WHT

652

Chime Module Signal - Bit 2

D14

LT BLU/BLK

659

Cellular Telephone Return - Voice (not present on Export)

D15

DK BLU

658

Cellular Telephone Signal - Voice (not present on Export)

D16

--

--

Not Used

Steering Wheel Control Switch


Object Number: 287981  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN

240

Fuse Output (Battery)

B

GRY

8

Instrument Panel Lamp Feed

C

DK BLU

1796

Radio Control Signal (Steering Column)

D

BLK

50

Ground

Right Rear Door Tweeter Speaker


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

1949

Speaker Return-Right Rear-Tweeter

B

--

--

Not Used

C

WHT

1854

Speaker Feed Right Rear - Tweeter

Right Rear Speaker (DeVille W/UQ6)


Object Number: 130724  Size: CH

Connector Part Information

    • 12064869
    • 2 Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

315

Subwoofer Speaker Return - Right

B

DK GRN

1795

Subwoofer Speaker Feed - Right

Right Rear Speaker (Eldorado W/UQ4)


Object Number: 130637  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

1951

Amplifier Feed - Right

B

BLK

1946

Audio Return Right Rear Low Level

C

DK BLU

546

Audio Signal - Right Rear - Low Level

D

BLK

1051

Radio Ground

Left Front Door Speaker


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Speaker Return - Left Front

B

TAN

201

Speaker Feed - Left Front

LH Front Door Tweeter Speaker


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Speaker Return - Left Front

B

TAN

201

Speaker Feed - Left Front

C

--

--

Not Used

Radio Speaker


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1960

Speaker Return - Front Center

B

YEL

1860

Speaker Feed - Front Center

RH Front Door Bose® Radio Speaker


Object Number: 39660  Size: CH

Connector Part Information

    • 12047785
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

1951

Amplifier Feed - Right

B

LT GRN/BLK

1948

Audio Return - Right Front - Low Level

C

BLK

1875

Speaker Feed - Right Front #2

D

BLK

1051

Ground

Right Front Door Tweeter Speaker


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Speaker Return - Right Front

A

PPL

1952

Speaker Return Right Front Tweeter (W/UQ6)

B

LT GRN

200

Speaker Feed - Right Front

C

LT GRN

1852

Speaker Feed - Right Front Tweeter (W/UG6)

Left Rear Door Tweeters Speaker (W/UQ6)


Object Number: 333035  Size: CH

Connector Part Information

    • 12047781
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1958

Speaker Return Left Rear - Tweeter

B

--

--

Not Used

C

RED

1858

Speaker Feed - Left Rear Tweeter

Right Front Door Midrange Speaker


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

Speaker Return - Right Front

A

ORN

1853

Speaker Feed Right Front Midrange (W/UG4)

B

LT GRN

200

Speaker Feed - Right Front

B

DK GRN

1953

Speaker Return - Right Front - Midrange (W/UG4)

Power Antenna Relay C1


Object Number: 333042  Size: CH

Connector Part Information

    • 12020013
    • 3 Way F Metri-Pack Mixed Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

2140

Fuse Output Battery

B

DK GRN

145

Power Antenna Relay Feed - Coil

C

BLK

1250

Ground