GM Service Manual Online
For 1990-2009 cars only
Connector 1: Audio Amplifier C1
Connector 2: Audio Amplifier C2
Connector 3: Audio Amplifier C3
Connector 4: CD Changer C1
Connector 5: CD Changer C2
Connector 6: Digital Radio Receiver
Connector 7: Noise Compensation Microphone
Connector 8: Radio C1
Connector 9: Radio C2
Connector 10: Radio C3 (Japan)
Connector 11: Radio Antenna Module - Left
Connector 12: Radio Antenna Module - Right C1
Connector 13: Radio Antenna Module - Right C2
Connector 14: Speaker - Center
Connector 15: Speaker - Driver Seat Left
Connector 16: Speaker - Driver Seat Right
Connector 17: Speaker - Passenger Seat Left
Connector 18: Speaker - Passenger Seat Right
Connector 19: Speaker - LF Door Subwoofer
Connector 20: Speaker - LF Midrange
Connector 21: Speaker - RF Door Subwoofer
Connector 22: Speaker - RF Midrange
Connector 23: Steering Wheel Control Switch Assembly - C1
Connector 24: Steering Wheel Control Switch Assembly - C2

Audio Amplifier C1


Object Number: 73158  Size: CH

Connector Part Information

  • OEM: 12110626
  • Service: 12110626
  • Description: 8-Way F Metri-Pack 280 Series, Flexlock (GY)

Terminal Part Information

  • Pins: C, D, E, F
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A, H
  • Terminal/Tray: 15324340/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Audio Amplifier C1

Pin

Wire Color

Circuit No.

Function

A

BK/WH

651

Signal Ground

B

--

--

Not Used

C

D-GN

117

Right Front Speaker Signal (-) (1)

D

TN

201

Left Front Speaker (+) (1)

E

GY

118

Left Front Speaker Signal (-) (1)

F

L-GN

200

Right Front Speaker (+) (1)

G

--

--

Not Used

H

RD/BK

142

Battery Positive Voltage

Audio Amplifier C2


Object Number: 73156  Size: CH

Connector Part Information

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

Terminal Part Information

  • Pins: A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, B8, B9, B10, B11, B12
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Audio Amplifier C2

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

BN

199

Left Rear Speaker (+)

A3

YE

116

Left Rear Speaker Signal (-)

A4

TN

1856

Left Front Tweeter Speaker (+)

A5

YE

1956

Left Front Tweeter Speaker (-)

A6

L-BU

1960

Front Center Speaker (-)

A7

YE

1860

Front Center Speaker (+)

A8

PU

1952

Right Front Tweeter Speaker (-)

A9

L-GN

1852

Right Front Tweeter Speaker (+)

A10

L-BU

115

Right Rear Speaker Signal (-)

A11

D-BU

46

Right Rear Speaker (+)

A12

L-BU

1405

Remote Tape Player Audio Communication Signal

B1-B7

--

--

Not Used

B8

L-GN

1948

Right Front Low Level Audio (-)

B9

D-GN

1947

Left Front Low Level Audio (-)

B10

TN

511

Left Front Low Level Audio Signal

B11

D-GN

512

Right Front Low Level Audio Signal

B12

OG/BK

1406

Remote Tape Player Left Audio Signal

Audio Amplifier C3


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: 6-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

  • Pins: 5, 7, 8, 9, 10
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Audio Amplifier C3

Pin

Wire Color

Circuit No.

Function

5

D-BU

2272

Class 2 Serial Data

6

--

--

Not Used

7

BARE

1489

Noise Reduction Microphone Drain Wire

8

D-GN

1488

Noise Reduction Microphone (+)

9

D-GN

5743

Radio Voice Prompt Signal

10

TN

5778

Radio Voice Prompt Low Reference

CD Changer C1


Object Number: 1283837  Size: CH

Connector Part Information

  • OEM: 15422427
  • Service: 89046662
  • Description: 16-Way F (WH)

Terminal Part Information

  • Pins: 1, 16, 5, 10, 11, 13, 14, 15
  • Terminal/Tray: 7116-1261/27
  • Core/Insulation Crimp: Pins 1, 16 - K/K
  • Core/Insulation Crimp: Pins 5, 10, 11, 13, 14, 15 - J/J
  • Release Tool/Test Probe: 12152110/J-35616-16 (L-GN)

CD Changer C1

Pin

Wire Color

Circuit No.

Function

1

BK

651

Signal Ground

2-4

--

--

Not Used

5

D-GN/WH

368

Remote Radio Right Audio Signal (1)

6-9

--

--

Not Used

10

PU

1375

Remote Radio Control Head Accessory Supply Voltage

11

D-BU

1796

Steering Column Radio Control Signal

12

--

--

Not Used

13

TN/WH

372

Remote Radio Audio (-)

14

BN/WH

367

Remote Radio Left Audio Signal

15

TN

5072

Class 2 Serial Data

16

RD/WH

740

Battery Positive Voltage

CD Changer C2


Object Number: 1283836  Size: CH

Connector Part Information

  • OEM: 15422428
  • Service: 89046661
  • Description: 20-Way F (WH)

Terminal Part Information

  • Pins: 4, 5, 6, 7, 14, 15, 16, 17, 18
  • Terminal/Tray: 7116-1261/27
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12152110/J-35616-16 (L-GN)
  • Pins: 8
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

CD Changer C2

Pin

Wire Color

Circuit No.

Function

1-3

--

--

Not Used

4

TN

511

Left Front Low Level Audio Signal

5

L-GN/BK

512

Right Front Low Level Audio Signal

6

TN

511

Left Front Low Level Audio Signal

7

L-GN/BK

512

Right Front Low Level Audio Signal

8

BARE

2012

Right Front Audio Drain Wire

9-13

--

--

Not Used

14

D-GN

1947

Left Front Low Level Audio (-)

15

L-GN

1948

Right Front Low Level Audio (-)

16

D-GN

1947

Left Front Low Level Audio (-)

17

BARE

2011

Left Front Audio Drain Wire

18

L-GN

1948

Right Front Low Level Audio (-)

19-20

--

--

Not Used

Digital Radio Receiver


Object Number: 850856  Size: CH

Connector Part Information

  • OEM: 15394150
  • Service: 15394150
  • Description: 16-Way F Micro 64 Unsealed (BK)

Terminal Part Information

  • Pins: 2, 3, 9, 10, 11, 15, 16
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Digital Radio Receiver

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BN/WH

367

Left Audio Signal

3

D-GN/WH

368

Right Audio Signal

4-8

--

--

Not Used

9

BK/WH

651

Ground

10

TN/WH

372

Audio Common

11

BARE

814

Drain

12-14

--

--

Not Used

15

L-BU

5781

Class 2 Serial Data

16

RD/WH

740

Battery Positive Voltage

Noise Compensation Microphone


Object Number: 35441  Size: CH

Connector Part Information

  • OEM: 12047663
  • Service: 12085481
  • Description: 2-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12047581/2
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-3 (GY)

Noise Compensation Microphone

Pin

Wire Color

Circuit No.

Function

A

BARE

1489

Drain

B

D-GN

1488

Noise Compensation Microphone Signal

Radio C1


Object Number: 73222  Size: CH

Connector Part Information

  • OEM: 12110115
  • Service: 12110115
  • Description: 32-Way F Micro-Pack 100 Series (D-BU)

Terminal Part Information

  • Pins: E15, F16
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: E4, E6, E12, E13, E14, F1, F2, F3, F11, F12, F13, F14, F15
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
  • Pins: E16
  • Terminal/Tray: 12146448/19
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Radio C1

Pin

Wire Color

Circuit No.

Function

E1-E3

--

--

Not Used

E4

YE

5172

Antenna Radio Signal

E5

--

--

Not Used

E6

OG

1044

Radio Class 2 Serial Data

E7-E11

--

--

Not Used

E12

TN

511

Left Front Low Level Audio Signal

E13

D-GN

1947

Left Front Low Level Audio (-)

E14

BARE

2011

Left Front Audio Drain Wire

E15

BARE

2012

Right Front Audio Drain Wire

E16

BK/WH

651

Signal Ground

F1

RD/WH

740

Battery Positive Voltage

F2

D-GN/WH

817

Vehicle Speed Signal

F3

PK

5165

Switched Supply Voltagel

F4-F10

--

--

Not Used

F11

BARE

5344

Navigation Voice Screen

F12

TN

5778

Radio Voice Prompt Low Reference

F13

D-GN

5743

Radio Voice Prompt Signal

F14

L-GN

1948

Right Front Low Level Audio (-)

F15

L-GN/BK

512

Right Front Low Level Audio Signal

F16

BARE

2060

Auxiliary Detection Signal

Radio C2


Object Number: 1283833  Size: CH

Connector Part Information

  • OEM: 15380274
  • Service: 88986439
  • Description: 5-Way F (BK)

Terminal Part Information

  • Pins: 1, 2, 2
  • Terminal/Tray: 15445905/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12180559/J-35616-6 (BN)

Radio C2

Pin

Wire Color

Circuit No.

Function

1

PK

5149

Voice Recognition Audio Signal

2

BARE

1705

Drain Wire (Export)

2

PK/BK

5152

Voice Recognition Audio Low Reference

3-5

--

--

Not Used

Radio C3 (Japan)


Object Number: 861685  Size: CH

Connector Part Information

  • OEM: 15383013
  • Service: 88953363
  • Description: 6-Way F (WH)

Terminal Part Information

  • Pins: 2, 3, 5, 6
  • Terminal/Tray: 15445905/23
  • Core/Insulation Crimp: J/J
  • Release Tool/Test Probe: 12180559/J-35616-6 (BN)

Radio C3 (Japan)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

YE

5385

Vehicle Identification Communication System Bus Request Signal (Japan)

3

GY

5383

Vehicle Identification Communication System High Signal (Japan)

4

--

--

Not Used

5

BARE

514

Drain Wire (Japan)

6

BN

5384

Vehicle Identification Communication System Low Signal (Japan)

Radio Antenna Module - Left


Object Number: 1204333  Size: CH

Connector Part Information

  • OEM: 10774586
  • Service: 88953289
  • Description: 2-Way F Metri-Pack 150 Series (WH)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Radio Antenna Module - Left

Pin

Wire Color

Circuit No.

Function

1

GN

--

Left Antenna Signal - FM 2

2

D-BU

--

Ground

Radio Antenna Module - Right C1


Object Number: 35451  Size: CH

Connector Part Information

  • OEM: 12059251
  • Service: 12101848
  • Description: 2-Way F Metri-Pack 150 Series (RD)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Radio Antenna Module - Right C1

Pin

Wire Color

Circuit No.

Function

A

RD

1487

Antenna Enable Signal

B

BN

5172

FM Composite Signal

Radio Antenna Module - Right C2


Object Number: 1204333  Size: CH

Connector Part Information

  • OEM: 10774586
  • Service: 88953289
  • Description: 2-Way F Metri-Pack 150 Series (WH)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Radio Antenna Module - Right C2

Pin

Wire Color

Circuit No.

Function

1

YE

--

Right Antenna Signal - AM

2

RD

--

Right Antenna Signal - FM

Speaker - Center


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12052832
  • Service: 12101825
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Speaker - Center

Pin

Wire Color

Circuit No.

Function

A

L-BU

1960

Front Center Speaker (-)

B

YE

1860

Front Center Speaker (+)

Speaker - Driver Seat Left


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Speaker - Driver Seat Left

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Signal (-)

B

BN

199

Left Rear Speaker (+)

Speaker - Driver Seat Right


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Speaker - Driver Seat Right

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Signal (-)

B

D-BU

46

Right Rear Speaker (+)

Speaker - Passenger Seat Left


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Speaker - Passenger Seat Left

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Signal (-)

B

BN

199

Left Rear Speaker (+)

Speaker - Passenger Seat Right


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Speaker - Passenger Seat Right

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Signal (-)

B

D-BU

46

Right Rear Speaker (+)

Speaker - LF Door Subwoofer


Object Number: 68737  Size: CH

Connector Part Information

  • OEM: 12129489
  • Service: 12126486
  • Description: 3-Way F Metri-Pack 280 Series, Flexlock (BK)

Terminal Part Information

  • Pins: A, C
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Speaker - LF Door Subwoofer

Pin

Wire Color

Circuit No.

Function

A

TN

201

Left Front Subwoofer Speaker Output (+)

B

--

--

Not Used

C

GY

118

Left Front Subwoofer Speaker Output (-)

Speaker - LF Midrange


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12052832
  • Service: 12101825
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Speaker - LF Midrange

Pin

Wire Color

Circuit No.

Function

A

YE

1956

Left Front Tweeter Speaker (-)

B

TN

1856

Left Front Tweeter Speaker (+)

Speaker - RF Door Subwoofer


Object Number: 68737  Size: CH

Connector Part Information

  • OEM: 12129489
  • Service: 12126486
  • Description: 3-Way F Metri-Pack 280 Series, Flexlock (BK)

Terminal Part Information

  • Pins: A, C
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Speaker - RF Door Subwoofer

Pin

Wire Color

Circuit No.

Function

A

L-GN

200

Right Front Subwoofer Speaker Output (+)

B

--

--

Not Used

C

D-GN

118

Left Front Subwoofer Speaker Output (-)

Speaker - RF Midrange


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12052832
  • Service: 12101825
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Speaker - RF Midrange

Pin

Wire Color

Circuit No.

Function

A

PU

1952

Right Front Tweeter Speaker (-)

B

L-GN

1852

Right Front Tweeter Speaker (+)

Steering Wheel Control Switch Assembly - C1


Object Number: 1333392  Size: CH

Connector Part Information

  • OEM: 50-57-9407
  • Service: Not Serviced
  • Description: 7-Way F (BK)

Terminal Part Information

  • Pins: 2, 3, 4, 5, 6
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Steering Wheel Control Switch Assembly - C1

Pin

Wire Color

Circuit No.

Function

1

L-BU

--

Signal Circuit

2

D-BU

1796

Steering Wheel Controls Signal

3

YE

1491

Backlight Lamps Control

4

BK

1450

Ground

5

PK

1039

Ignition 1 Voltage

6

D-BU

900

Steering Wheel Controls Signal

7

--

--

Not Used

Steering Wheel Control Switch Assembly - C2


Object Number: 605511  Size: CH

Connector Part Information

  • OEM: 50-57-9405
  • Service: Not Serviced
  • Description: 5-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Steering Wheel Control Switch Assembly - C2

Pin

Wire Color

Circuit No.

Function

1

YE

1491

Backlight Lamps Control

2

BK

1450

Ground

3

PU

1375

Remote Radio Control Supply Voltage

4

L-BU

--

Signal Circuit

5

D-BU

1796

Steering Wheel Controls Signal