GM Service Manual Online
For 1990-2009 cars only
Table 1: Compact Disc (CD) Changer
Table 2: Front IP Speaker (Midrange)
Table 3: LH Front Door Speaker (Full Range) (w/UX8)
Table 4: LH Front Door Speaker (Tweeter) (w/U57)
Table 5: LH Front Speaker (Tweeter) (w/U57)
Table 6: LH Front Speaker (Tweeter) (w/UX8)
Table 7: LH Rear Door Speaker (Full Range)
Table 8: Noise Cancellation Microphone
Table 9: Radio (w/o UY4)
Table 10: Radio C1 (w/UY4)
Table 11: Radio C2 (w/UY4)
Table 12: Radio Amplifier (w/UX8) C1
Table 13: Radio Amplifier (w/UX8) C2
Table 14: Radio Amplifier (w/UX8) C3
Table 15: Radio Amplifier (w/U57) C1
Table 16: Radio Amplifier (w/U57) C2
Table 17: Radio Amplifier (w/U57) C3
Table 18: Radio Antenna Module
Table 19: Rear Speaker (Subwoofer) (w/UX8)
Table 20: Rear Speaker (Subwoofer) (w/U57)
Table 21: RH Front Door Speaker (Full Range) (w/UX8)
Table 22: RH Front Door Speaker (Tweeter) (w/U57)
Table 23: RH Front Speaker (Tweeter) (w/U57)
Table 24: RH Front Speaker (Tweeter) (w/UX8)
Table 25: RH Rear Door Speaker (Full Range)
Table 26: Steering Wheel Controls (RH Side) C1
Table 27: Steering Wheel Controls (RH Side) C2
Table 28: Steering Wheel Controls (LH Side) C1
Table 29: Steering Wheel Controls (LH Side) C2

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

1782

Drain Wire Return

5

ORN

2240

Battery Positive Voltage (B+)

6

--

--

Not Used

7

BLK/WHT

651

Ground

8-9

--

--

Not Used

10

DK GRN

835

E and C Data Line

Front IP Speaker (Midrange)


Object Number: 82383  Size: CH

Connector Part Information

    • 12047662
    • 2 Way F 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

LH Front Door Speaker (Full Range) (w/UX8)


Object Number: 130687  Size: CH

Connector Part Information

    • 12064867
    • 2 Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1957

Speaker Return-Left Front-Midrange

B

DK BLU

1857

Speaker Feed-Left Front-Midrange

LH Front Door Speaker (Tweeter) (w/U57)


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

1956

Speaker Return-Left Front

B

BLK

1856

Speaker Feed-Left Front

LH Front Speaker (Tweeter) (w/U57)


Object Number: 38284  Size: CH

Connector Part Information

    • 12124452
    • 2 Way M Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

1956

Speaker Return-Left Front

B

BLK

1856

Speaker Feed-Left Front

LH Front Speaker (Tweeter) (w/UX8)


Object Number: 95782  Size: CH

Connector Part Information

    • 12124465
    • 2 Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

1956

Speaker Return-Left Front-Tweeter

B

BLK

1856

Speaker Feed-Left Front-Tweeter

LH Rear Door Speaker (Full Range)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

WHT

1959

Speaker Return-Left Rear-Full Range

B

TAN

1859

Speaker Feed-Left Rear-Full Range

Noise Cancellation Microphone


Object Number: 35441  Size: CH

Connector Part Information

    • 12048457
    • 2 Way F 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BARE

1489

Noise Cancel Return

B

WHT

1488

Noise Cancel Signal

Radio (w/o UY4)


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

E and C Data Line

E2-E3

--

--

Not Used

E4

RED

1486

FM Composity

E5

YEL/BLK

1491

Interior Lamps Input

E6

PPL

1807

Class 2 Serial Data Line

E7-E11

--

--

Not Used

E12

TAN

511

LH Audio Output +

E13

DK GRN

1947

LH Audio Output -

E14

BARE

2011

Audio Ground

E15

BARE

2012

Audio Ground

E16

BLK/WHT

651

Ground

F1

ORN

2240

Battery Positive Voltage (B+)

F2

--

--

Not Used

F3

WHT

1487

Antenna Power

F4

--

--

Not Used

F5

BLK

450

Ground

F6

PPL

1807

Class 2 Serial Data Line

F7-F10

--

--

Not Used

F11

BARE

1792

Chime Ground

F12

PPL/WHT

652

Chime Output +

F13

DK BLU/WHT

653

Chime Output -

F14

LT GRN

1948

RH Audio Output -

F15

LT GRN/BLK

512

RH Audio Output +

F16

--

--

Not Used

Radio C1 (w/UY4)


Object Number: 73222  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

E1

DK GRN

835

E and C Data Line

E2-E3

--

--

Not Used

E4

RED

1486

FM Composite Band Select Signal

E5

--

--

Not Used

E6

PPL

1807

Class 2 Serial Data Line

E7-E11

--

--

Not Used

E12

TAN

511

LH Audio Output +

E13

DK GRN

1947

LH Audio Output -

E14

BARE

2011

Audio Ground

E15

BARE

2012

Audio Ground

E16

BLK/WHT

651

Ground

F1

ORN

2240

Fused Output - Battery

F2

--

--

Not Used

F3

WHT

1487

Switched Antenna Enable Output

F4-F10

--

--

Not Used

F11

BARE

1792

Drain Wire Return

F12

PPL/WHT

652

Chime Module Control

F13

DK BLU/WHT

653

Chime Module Return

F14

LT GRN

1948

RH Audio Output -

F15

LT GRN/BLK

512

RH Audio Output +

F16

--

--

Not Used

Radio C2 (w/UY4)


Object Number: 62467  Size: CH

Connector Part Information

    • 12064980
    • 9 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

7

PNK/BLK

2062

Navigation Audio Signal - Mono - High

8

ORN/BLK

2061

Navigation Audio Signal - Mono - Low

9-10

--

--

Not Used

11

BARE

814

Drain Wire Return

12

BRN/WHT

2052

Navigation Audio Signal - Stereo Left High

13

GRA/BLK

2053

Navigation Audio Signal - Stereo Left Low

14

DK GRN/WHT

2054

Navigation Audio Signal - Stereo Right High

15

PPL/WHT

2055

Navigation Audio Signal - Stereo Right Low

Radio Amplifier (w/UX8) C1


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/WHT

651

Ground

B

RED

1242

Battery Positive Voltage (B+)

Radio Amplifier (w/UX8) C2


Object Number: 73152  Size: CH

Connector Part Information

    • 12092929
    • 16 Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A1

LT BLU

1957

LH Front Door Speaker Output -

A2

DK BLU

1857

LH Front Door Speaker Output +

A3

DK GRN

1953

RH Front Door Speaker Output -

A4

ORN

1853

RH Front Door Speaker Output +

A5

RED

1955

RH Rear Door Speaker Output -

A6

TAN

1855

RH Rear Door Speaker Output +

A7

WHT

1959

LH Rear Door Speaker Output -

A8

TAN

1859

LH Rear Door Speaker Output +

B1

DK BLU

658

Cell Phone Mono Input +

B2

LT BLU/BLK

659

Cell Phone Mono Input -

B3-B8

--

--

Not Used

Radio Amplifier (w/UX8) C3


Object Number: 130690  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

PPL

1952

RH Front Tweeter Output -

A2

LT GRN

1852

RH Front Tweeter Output +

A3

BLK

1856

LH Front Tweeter Output +

A4

YEL

1956

LH Front Tweeter Output -

A5

LT GRN/BLK

1794

Rear Shelf Subwoofer Coil 1 Output -

A6

DK BLU/WHT

346

Rear Shelf Subwoofer Coil 1 Output +

A7

LT BLU

1960

Center I/P Midrange Output -

A8

YEL

1860

Center I/P Midrange Output +

A9

LT BLU/BLK

315

Rear Shelf Subwoofer Coil 2 Output -

A10

DK GRN

1795

Rear Shelf Subwoofer Coil 2 Output +

A11-A12

--

--

Not Used

B1

DK GRN/WHT

368

Right CD Changer Input

B2

BLK/WHT

372

CD Changer Common

B3

BRN/WHT

367

Left CD Changer Input

B4

LT GRN

1948

Right Audio Input -

B5

LT GRN/BLK

512

Right Audio Input +

B6

DK GRN

1947

Left Audio Input -

B7

TAN

511

Left Audio Input +

B8

DK BLU/WHT

653

Chime Input -

B9

PPL/WHT

652

Chime Input +

B10

--

--

Not Used

B11

PPL

1807

Class 2 Serial Data Line

B12

--

--

Not Used

Radio Amplifier (w/U57) C1


Object Number: 73158  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

651

Ground

B

DK BLU/WHT

346

Rear Shelf Subwoofer +

C-F

--

--

Not Used

G

LT GRN/BLK

1794

Rear Shelf Subwoofer -

H

RED

1242

Battery Positive Voltage (B+)

Radio Amplifier (w/U57) C2


Object Number: 130689  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

WHT

1959

LH Rear Door Speaker +

A3

TAN

1859

LH Rear Door Speaker -

A4

BLK

1856

LH Front Speaker +

A5

YEL

1956

LH Front Speaker -

A6

LT BLU

1960

Front IP Speaker -

A7

YEL

1860

Front IP Speaker +

A8

PPL

1952

RH Front Speaker -

A9

LT GRN

1852

RH Front Speaker +

A10

TAN

1855

RH Rear Door Speaker -

A11

RED

1955

RH Rear Door Speaker +

A12

PPL/WHT

652

Chime Input +

B1-B4

--

--

Not Used

B5

BRN/WHT

367

Left CD Changer Input

B6

DK GRN/WHT

368

Right CD Changer Input

B7

BLK/WHT

372

CD Changer Common

B8

LT GRN

1948

Right Audio Input -

B9

DK GRN

1947

Left Audio Input -

B10

TAN

511

Left Audio Input +

B11

LT GRN/BLK

512

Right Audio Input +

B12

DK BLU/WHT

653

Chime Input -

Radio Amplifier (w/U57) C3


Object Number: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5

PPL

1807

Class 2 Serial Data Line

6

--

--

Not Used

7

Bare

1498

Microphone Input -

8

DK GRN

1488

Microphone Input +

9

LT BLU/BLK

659

Cell Phone Mono Input -

10

DK BLU

658

Cell Phone Mono Input +

Radio Antenna Module


Object Number: 258666  Size: CH

Connector Part Information

    • 12186246
    • 3 Way (NAT)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

WHT

1487

Switched Antenna Enable Output

3

RED

1486

FM Composite Band Select Signal

Rear Speaker (Subwoofer) (w/UX8)


Object Number: 130637  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

1794

Subwoofer Speaker Return

B

DK BLU/WHT

346

Subwoofer Speaker Feed

C

LT BLU/BLK

315

Subwoofer Speaker Return

D

DK GRN

1795

Subwoofer Speaker Feed

Rear Speaker (Subwoofer) (w/U57)


Object Number: 153645  Size: CH

Connector Part Information

    • 12129081
    • 2 Way Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/WHT

346

Subwoofer Speaker Feed

B

LT GRN/BLK

1794

Subwoofer Speaker Return

RH Front Door Speaker (Full Range) (w/UX8)


Object Number: 130687  Size: CH

Connector Part Information

    • 12064867
    • 2 Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

1953

Speaker Return

B

ORN

1853

Speaker Feed

RH Front Door Speaker (Tweeter) (w/U57)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PPL

1952

Speaker Return - Right Front

B

LT GRN

1852

Speaker Feed - Right Front

RH Front Speaker (Tweeter) (w/U57)


Object Number: 38284  Size: CH

Connector Part Information

    • 12124452
    • 2 Way M Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1952

Speaker Return - Right Front

B

LT GRN

1852

Speaker Feed - Right Front

RH Front Speaker (Tweeter) (w/UX8)


Object Number: 95782  Size: CH

Connector Part Information

    • 12124465
    • 2 Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1952

Speaker Return - Right Front - Tweeter

B

LT GRN

1852

Speaker Feed - Right Front - Tweeter

RH Rear Door Speaker (Full Range)


Object Number: 280768  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

RED

1955

Speaker Return-Right Rear-Full Range

B

TAN

1855

Speaker Feed-Right Rear-Full Range

Steering Wheel Controls (RH Side) C1


Object Number: 605507  Size: CH

Connector Part Information

6 Way F (BLK)

Pin

Wire Color

Circuit No.

Function

1

PPL

1375

Steering Wheel Control (SWC) Feed

2

DK BLU

1796

LH Steering Wheel Control (SWC) Feed

3

YEL

1491

Interior Lamp Dimming Feed

4

--

--

Not Used

5

BLK

350

Interior Lamp Dimming Ground

6

DK BLU

1796

Steering Wheel Control (SWC) Return

Steering Wheel Controls (RH Side) C2


Object Number: 605511  Size: CH

Connector Part Information

5 Way F (BLK)

Pin

Wire Color

Circuit No.

Function

1

GRY

397

Steering Wheel Control (SWC) Feed

2

BLK

450

Interior Lamp Dimming Ground

3

YEL

1491

Interior Lamp Dimming Feed

4

GRY/BLK

87

RES/ACC Return

5

DK BLU

84

SET/COAST Return

Steering Wheel Controls (LH Side) C1


Object Number: 605502  Size: CH

Connector Part Information

4 Way (BLK)

Pin

Wire Color

Circuit No.

Function

1

PNK

1039

Steering Wheel Control (SWC) Feed

2

GRY

397

Cruise ON/OFF Return

3

BLK

350

Interior Dimming Ground

4

YEL

1491

Interior Dimming Feed

Steering Wheel Controls (LH Side) C2


Object Number: 605511  Size: CH

Connector Part Information

5 Way (BLK)

Pin

Wire Color

Circuit No.

Function

1

DK BLU

1796

Steering Wheel Control (SWC) Feed

2

YEL

1491

Interior Dimming Feed

3

BLK

350

Interior Dimming Ground

4

--

--

Not Used

5

DK BLU

1796

Steering Wheel Control (SWC) Return