GM Service Manual Online
For 1990-2009 cars only
Connector 1: Audio Amplifier C1 (UQ3)
Connector 2: Audio Amplifier C2 (UQ3)
Connector 3: Digital Radio Receiver (U2K)
Connector 4: Digital Video Disc (DVD) Player (U32)
Connector 5: Radio C1
Connector 6: Radio C2 (U2K or UM8)
Connector 7: Rear Seat Audio (RSA) Control (UK6)
Connector 8: Speaker - LF Door
Connector 9: Speaker - LF Door Tweeter
Connector 10: Speaker - LR Door
Connector 11: Speaker - LR Subwoofer (UQ3)
Connector 12: Speaker - RF Door
Connector 13: Speaker - RF Door Tweeter
Connector 14: Speaker - RR Door
Connector 15: Speaker - RR Subwoofer (UQ3)
Connector 16: Steering Wheel Control Switch Assembly - Left (UK3)
Connector 17: Steering Wheel Control Switch Assembly - Right (UK3)

Audio Amplifier C1 (UQ3)


Object Number: 73158  Size: CH

Connector Part Information

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

Terminal Part Information

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

Audio Amplifier C1 (UQ3)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

OG

926

Amplifier Present Signal

C-D

--

--

Not Used

E

PU

493

Rear Seat Audio Enable Signal

F

PU

927

Amplifier Control

G

OG

2040

Battery Positive Voltage

H

BK/WH

351

Ground

Audio Amplifier C2 (UQ3)


Object Number: 73156  Size: CH

Connector Part Information

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

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Audio Amplifier C2 (UQ3)

Pin

Wire Color

Circuit No.

Function

A1

L-GN/BK

1794

Left Subwoofer Speaker Output (-)

A2

D-BU/WH

346

Left Subwoofer Speaker Output (+)

A3

L- BU/BK

315

Right Subwoofer Speaker Output (-)

A4

D-GN

1795

Right Subwoofer Speaker Output (+)

A5

YE

1956

Left Front Tweeter Speaker Output (-)

A6

BK

1856

Left Front Tweeter Speaker Output (+)

A7

PU

1952

Right Front Tweeter Speaker Output (-)

A8

L-GN

1852

Right Front Tweeter Speaker Output (+)

A9

L-GN

200

Right Front Speaker Output (+)

A10

D-GN

117

Right Front Speaker Output (-)

A11

TN

201

Left Front Speaker Output (+)

A12

GY

118

Left Front Speaker Output (-)

B1

L-GN

1948

Right Front Low Level Audio (-)

B2

L-GN/BK

512

Right Front Low Level Audio Signal

B3

D-GN

1947

Left Front Low Level Audio (-)

B4

TN

511

Left Front Low Level Audio Signal

B5

BK/WH

1946

Right Rear Low Level Audio (-)

B6

D-BU

546

Right Rear Low Level Audio Signal

B7

BN

1999

Left Rear Low Level Audio (-)

B8

BN/WH

599

Left Rear Low Level Audio Signal

B9

D-BU

46

Right Rear Speaker Output (+)

B10

L-BU

115

Right Rear Speaker Output (-)

B11

BN

199

Left Rear Speaker Output (+)

B12

YE

116

Left Rear Speaker Output (-)

Digital Radio Receiver (U2K)


Object Number: 850856  Size: CH

Connector Part Information

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

Terminal Part Information

  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

Digital Radio Receiver (U2K)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BN/WH

367

Remote Playback Device Left Audio Signal

3

D-GN/WH

368

Remote Playback Device Right Audio Signal

4-8

--

--

Not Used

9

BK/WH

351

Ground

10

BK/WH

372

Remote Playback Device Audio Common Signal

11

BARE

7814

Drain Wire

12-14

--

--

Not Used

15

OG

9807

Class 2 Serial Data

16

OG

3340

Battery Positive Voltage

Digital Video Disc (DVD) Player (U32)


Object Number: 850857  Size: CH

Connector Part Information

  • OEM: 15341086
  • Service: 88986454
  • Description: 12-Way F Multi-Lock 040 Series (BK)

Terminal Part Information

  • Terminal/Tray: 173681-2/17
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-16 (L-GN)

Digital Video Disc (DVD) Player (U32)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PK

1045

Class 2 Serial Data

3-4

--

--

Not Used

5

D-GN/WH

368

Remote Playback Device Right Audio Signal

6

BN/WH

367

Remote Playback Device Left Audio Signal

7

BK/WH

351

Ground

8

--

--

Not Used

9

OG

4240

Battery Positive Voltage

10-11

--

--

Not Used

12

BK/WH

372

Remote Playback Device Audio Common Signal

Radio C1


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: A1, A3, A6, A7, A8, A8, A9, A9, A10, A10, A11, A11, B1, B3, B4, B5, B6, B7, B8, B8, B9, B9, B10, B10, B11, B11
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
  • Pin: A12
  • 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

A1

OG

1044

Class 2 Serial Data

A2

--

--

Not Used

A3

PU

493

Rear Seat Audio Enable Signal

A4-A5

--

--

Not Used

A6

PU

1375

Remote Radio Control Supply Voltage

A7

D-BU

1796

Steering Wheel Controls Signal

A8

TN

201

Left Front Speaker Output (+) (U96)

A8

TN

511

Left Front Low Level Audio Signal (UQ3)

A9

GY

118

Left Front Speaker Output (-) (U96)

D-GN

1947

Left Front Low Level Audio (-) (UQ3)

A10

L-BU

115

Right Rear Speaker Output (-) (U96)

BK/WH

1946

Right Rear Low Level Audio (-) (UQ3)

A11

D-BU

46

Right Rear Speaker Output (+) (U96)

D-BU

546

Right Rear Low Level Audio Signal (UQ3)

A12

BK/WH

351

Ground

B1

OG

5640

Battery Positive Voltage

B2

--

--

Not Used

B3

PU

927

Amplifier Control (UQ3)

B4

GY

8

Instrument Panel Lamp Supply Voltage

B5

BK

1450

Ground

B6

OG

926

Amplifier Present Signal (UQ3)

B7

L-GN

1011

Remote Radio Control Signal

B8

BN

199

Left Rear Speaker Output (+) (U96)

BN/WH

599

Left Rear Low Level Audio Signal (UQ3)

B9

YE

116

Left Rear Speaker Output (-) (U96)

BN

1999

Left Rear Low Level Audio (-) (UQ3)

B10

D-GN

117

Right Front Speaker Output (-) (U96)

L-GN

1948

Right Front Low Level Audio (-) (UQ3)

B11

L-GN

200

Right Front Speaker Output (+) (U96)

L-GN/BK

512

Right Front Low Level Audio Signal (UQ3)

B12

--

--

Not Used

Radio C2 (U2K or UM8)


Object Number: 73151  Size: CH

Connector Part Information

  • OEM: 12064799
  • Service: 15305996
  • Description: 12-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Radio C2 (U2K or UM8)

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

BARE

814

Drain Wire (U32)

D

--

--

Not Used

E

D-GN

389

Vehicle Speed Signal (UM8)

F-G

--

--

Not Used

H

D-GN/WH

368

Remote Playback Device Right Audio Signal (U2K)

J

BN/WH

367

Remote Playback Device Left Audio Signal (U2K)

K

BK/WH

372

Remote Playback Device Audio Common Signal (U2K)

L

BK/WH

9372

Remote Playback Device Audio Common Signal (UE1)

M

BN/WH

9367

Remote Playback Device Left Audio Signal (UE1)

Rear Seat Audio (RSA) Control (UK6)


Object Number: 744296  Size: CH

Connector Part Information

  • OEM: 12110259
  • Service: 12110259
  • Description: 16-Way F Micro-Pack 100 Series (GN)

Terminal Part Information

  • Pins: A1, A2, A3, A4, A5, A6, A8, B1, B2, B3, B4, B5, B8
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
  • Pin: B6
  • Terminal/Tray: 12146448/19
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Rear Seat Audio (RSA) Control (UK6)

Pin

Wire Color

Circuit No.

Function

A1

BK

1946

Right Rear Low Level Audio (-)

A2

D-BU

546

Right Rear Low Level Audio Signal

A3

BN

1999

Left Rear Low Level Audio (-)

A4

BN

599

Left Rear Low Level Audio Signal

A5

L-GN

1011

Remote Radio Control Signal

A6

GY

8

Instrument Panel Lamp Supply Voltage

A7

--

--

Not Used

A8

PU

1375

Remote Radio Control Supply Voltage

B1

L-BU

115

Right Rear Speaker Output (-)

B2

D-BU

46

Right Rear Speaker Output (+)

B3

YE

116

Left Rear Speaker Output (-)

B4

BN

199

Left Rear Speaker Output (+)

B5

PU

493

Rear Seat Audio Enable Signal

B6

BK

150

Ground

B7

--

--

Not Used

B8

BN

9

Park Lamp Supply Voltage

Speaker - LF Door


Object Number: 365973  Size: CH

Connector Part Information

  • OEM: 12186847
  • Service: 12101825
  • Description: 2-Way F Metri-Pack 150 Series (WH)

Terminal Part Information

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

Speaker - LF Door

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LF Door Tweeter


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12052832
  • Service: 12101825
  • Description: 2-Way F Metri-Pack 150 Ser

Terminal Part Information

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

Speaker - LF Door Tweeter

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LR Door


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 - LR Door

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - LR Subwoofer (UQ3)


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: 12047767/2
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Speaker - LR Subwoofer (UQ3)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

1794

Left Subwoofer Speaker Output (-)

B

D-BU/WH

346

Left Subwoofer Speaker Output (-)

Speaker - RF Door


Object Number: 365973  Size: CH

Connector Part Information

  • OEM: 12186847
  • Service: 12101825
  • Description: 2-Way F Metri-Pack 150 Series (WH)

Terminal Part Information

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

Speaker - RF Door

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

Speaker - RF Door Tweeter


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 Door Tweeter

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

Speaker - RR Door


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 - RR Door

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

Speaker - RR Subwoofer (UQ3)


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: 12047767/2
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Speaker - RR Subwoofer (UQ3)

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

315

Right Subwoofer Speaker Output (-)

B

D-GN

1795

Right Subwoofer Speaker Output (+)

Steering Wheel Control Switch Assembly - Left (UK3)


Object Number: 605511  Size: CH

Connector Part Information

  • OEM: 50579405
  • Service: See Catalog
  • Description: 5-Way F Molex 70066 Crimp Housing (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 - Left (UK3)

Pin

Wire Color

Circuit No.

Function

1

D-BU

1796

Steering Wheel Controls Signal

2

YE/BK

1491

Instrument Panel Lamp Supply Voltage

3

BK

350

Ground

4

--

--

Not Used

5

D-BU

1796

Steering Wheel Controls Signal

Steering Wheel Control Switch Assembly - Right (UK3)


Object Number: 605507  Size: CH

Connector Part Information

  • OEM: 50579406
  • Service: See Catalog
  • Description: 6-Way F Molex 70066 Crimp Housing (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 - Right (UK3)

Pin

Wire Color

Circuit No.

Function

1

PU

1375

Remote Radio Control Supply Voltage

2

D-BU

1796

Steering Wheel Controls Signal

3

YE/BK

1491

Instrument Panel Lamp Supply Voltage

4

--

--

Not Used

5

BK

350

Ground

6

D-BU

1796

Steering Wheel Controls Signal