GM Service Manual Online
For 1990-2009 cars only
Connector 1: Audio Coupling Transformer C1 (UMS)
Connector 2: Audio Coupling Transformer C2 (UMS)
Connector 3: Digital Radio Receiver (U2K)
Connector 4: Digital Video Disc (DVD) Player (U42 or U56)
Connector 5: Digital Video Disc (DVD) Player C1 (UMS)
Connector 6: Digital Video Disc (DVD) Player C2 (UMS)
Connector 7: Mobile Entertainment Player Module (UMS)
Connector 8: Radio C1
Connector 9: Radio C2
Connector 10: Speaker - LF
Connector 11: Speaker - LR
Connector 12: Speaker - Rear Tweeter - Left
Connector 13: Speaker - Rear Tweeter - Right
Connector 14: Speaker - RF
Connector 15: Speaker - RR
Connector 16: Steering Wheel Control Switch Assembly - Left (UK3)
Connector 17: Steering Wheel Control Switch Assembly - Right (UK3)

Audio Coupling Transformer C1 (UMS)


Object Number: 1650405  Size: CH

Connector Part Information

  • OEM: 30700-1121
  • Service: See Catalog
  • Description: 12-Way F HDAC64 DR (BK)

Terminal Part Information

  • Terminal: Not Serviced in Kit
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: N/A

Audio Coupling Transformer C1 (UMS)

Pin

Wire Color

Circuit No.

Function

1

WH

--

Rear Audio Left Signal

2

BK

--

Rear Audio Common Signal

3

RD

--

Rear Audio Right Signal

4

RD

--

Remote Playback Device Right Audio Signal

5

BK

--

Remote Playback Device Audio Common Signal

6

WH

--

Remote Playback Device Left Audio Signal

7

BK

--

Ground

8

BARE

--

Drain Wire

9

BARE

--

Drain Wire

10

RD

--

Remote Playback Device Right Audio Signal

11

BK

--

Remote Playback Device Audio Common Signal

12

WH

--

Remote Playback Device Left Audio Signal

Audio Coupling Transformer C2 (UMS)


Object Number: 1650407  Size: CH

Connector Part Information

  • OEM: 30700-1080
  • Service: See Catalog
  • Description: 8-Way F HDAC64 DR (GY)

Terminal Part Information

  • Terminal: Not Serviced in Kit
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: N/A

Audio Coupling Transformer C2 (UMS)

Pin

Wire Color

Circuit No.

Function

1

WH

--

Remote Playback Device Left Audio Signal

2

BK

--

Remote Playback Device Audio Common Signal

3

RD

--

Remote Playback Device Right Audio Signal

4

WH

--

Rear Audio Left Signal

5

BK

--

Rear Audio Common Signal

6

RD

--

Rear Audio Right Signal

7

BARE

--

Drain Wire

8

BARE

--

Drain Wire

Digital Radio Receiver (U2K)


Object Number: 850856  Size: CH

Connector Part Information

  • OEM: 15394150
  • Service: See Catalog
  • Description: 16-Way F ASM (BK)

Terminal Part Information

  • Terminal: 15359541/Tray 4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64A

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

TN/WH

372

Remote Playback Device Audio Common Signal

11

BARE

814

Drain Wire

12-14

--

--

Not Used

15

TN

5072

Class 2 Serial Data

16

RD/WH

640

Battery Positive Voltage

Digital Video Disc (DVD) Player (U42 or U56)


Object Number: 1399229  Size: CH

Connector Part Information

  • OEM: 15417106
  • Service: See Catalog
  • Description: 16-Way F HDAC64 DR (GY)

Terminal Part Information

  • Terminal: Not Serviced in Kit
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: N/A

Digital Video Disc (DVD) Player (U42 or U56)

Pin

Wire Color

Circuit No.

Function

1

RD/WH

2040

Battery Positive Voltage

2

BK/WH

351

Ground

3

BN/WH

599

Left Rear Low Level Audio Signal (+)

4

BN

1999

Left Rear Low Level Audio Signal (-)

5

D-BU

546

Right Rear Low Level Audio Signal (+)

6

TN

1946

Right Rear Low Level Audio Signal (-)

7

BN/WH

1048

Class 2 Serial Data

8

--

--

Not Used

9

TN/WH

372

Remote Playback Device Audio Common Signal

10

D-GN/WH

368

Remote Playback Device Right Audio Signal

11

BN/WH

367

Remote Playback Device Left Audio Signal

12

BN

199

Left Rear Speaker Output (+)

13

YE

116

Left Rear Speaker Output (-)

14

D-BU

46

Right Rear Speaker Output (+)

15

L-BU

115

Right Rear Speaker Output (-)

16

--

--

Not Used

Digital Video Disc (DVD) Player C1 (UMS)


Object Number: 1399229  Size: CH

Connector Part Information

  • OEM: 30700-1168
  • Service: See Catalog
  • Description: 16-Way F HDAC64 DR (BK)

Terminal Part Information

  • Terminal: Not Serviced in Kit
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: N/A

Digital Video Disc (DVD) Player C1 (UMS)

Pin

Wire Color

Circuit No.

Function

1

RD

--

Battery Positive Voltage

2

BK

--

Ground

3

RD

--

Left Rear Low Level Audio Signal (+)

4

BK

--

Left Rear Low Level Audio Signal (-)

5

RD

--

Right Rear Low Level Audio Signal (+)

6

BK

--

Right Rear Low Level Audio Signal (-)

7

BK

--

Class 2 Serial Data

8

BK

--

Class 2 Serial Data

9

BK

--

Remote Playback Device Audio Common Signal

10

RD

--

Remote Playback Device Right Audio Signal

11

WH

--

Remote Playback Device Left Audio Signal

12

RD

--

Left Rear Speaker Output (+)

13

BK

--

Left Rear Speaker Output (-)

14

RD

--

Right Rear Speaker Output (+)

15

BK

--

Right Rear Speaker Output (-)

16

--

--

Not Used

Digital Video Disc (DVD) Player C2 (UMS)


Object Number: 1399235  Size: CH

Connector Part Information

  • OEM: 30700-1100
  • Service: See Catalog
  • Description: 10-Way F HDAC64 DR (GY)

Terminal Part Information

  • Terminal: Not Serviced in Kit
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: N/A

Digital Video Disc (DVD) Player C2 (UMS)

Pin

Wire Color

Circuit No.

Function

1

RD

--

Auxiliary Video Signal

2

BK

--

Auxiliary Video Ground

3

WH

--

Auxiliary Audio Left Signal

4

RD

--

Auxiliary Audio Right Signal

5

BK

--

Auxiliary Audio Common Signal

6

WH

--

Rear Audio Left Signal

7

RD

--

Rear Audio Right Signal

8

BK

--

Rear Audio Common Signal

9

RD

--

Rear Video Signal

10

BK

--

Rear Video Ground

Mobile Entertainment Player Module (UMS)


Object Number: 1399229  Size: CH

Connector Part Information

  • OEM: 30700-1160
  • Service: See Catalog
  • Description: 16-Way F HDAC64 DR (GY)

Terminal Part Information

  • Terminal: Not Serviced in Kit
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: N/A

Mobile Entertainment Player Module (UMS)

Pin

Wire Color

Circuit No.

Function

1

BK

--

Auxiliary Audio Common Signal

2

WH

--

Auxiliary Audio Left Signal

3

RD

--

Auxiliary Audio Right Signal

4

BK

--

Remote Playback Device Audio Common Signal

5

WH

--

Remote Playback Device Left Audio Signal

6

RD

--

Remote Playback Device Right Audio Signal

7

RD

--

Rear Video Signal

8

BK

--

Ground

9

BK

--

Class 2 Serial Data

10

BK

--

Auxiliary Video Ground

11

RD

--

Auxiliary Video Signal

12

BK

--

Rear Audio Common Signal

13

WH

--

Rear Audio Left Signal

14

RD

--

Rear Audio Right Signal

15

BK

--

Rear Video Ground

16

RD

--

Battery Positive Voltage

Radio C1


Object Number: 73156  Size: CH

Connector Part Information

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

Terminal Part Information

  • Pins: A1, A6, A7, B4, B5
  • Terminal: 12146447/Tray 3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6
  • Pins: A8-A12, B1, B8-B11
  • Terminal: 12146448/Tray 19
  • Core/Insulation Crimp: Pins A1-A11, B4-B11: E/C
  • Core/Insulation Crimp: Pins A12, B1: E/A
  • Release Tool/Test Probe: 12031876-1/J-35616-6

Radio C1

Pin

Wire Color

Circuit No.

Function

A1

OG

1044

Class 2 Serial Data

A2-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 (+)

A9

GY

118

Left Front Speaker Output (-)

A10

L-BU

115

Right Rear Speaker Output (-)

A11

D-BU

46

Right Rear Speaker Output (+)

A12

BK/WH

351

Ground

B1

RD/WH

2040

Battery Positive Voltage

B2-B3

--

--

Not Used

B4

GY

8

Instrument Panel Lamp Supply Voltage

B5

BK

1450

Ground

B6-B7

--

--

Not Used

B8

BN

199

Left Rear Speaker Output (+)

B9

YE

116

Left Rear Speaker Output (-)

B10

D-GN

117

Right Front Speaker Output (-)

B11

L-GN

200

Right Front Speaker Output (+)

B12

--

--

Not Used

Radio C2


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

Radio C2

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

BARE

814

Drain Wire (U42 or U56)

D

--

--

Not Used

E

D-GN

389

Vehicle Speed Signal (U3U)

F-G

--

--

Not Used

H

D-GN/WH

368

Remote Playback Device Right Audio Signal (U2K)

D-GN/WH

368

Remote Playback Device Right Audio Signal (U42 or U56)

J

BN/WH

367

Remote Playback Device Left Audio Signal (U2K)

BN/WH

367

Remote Playback Device Left Audio Signal (U42 or U56)

K

TN/WH

372

Remote Playback Device Audio Common Signal (U2K)

TN/WH

372

Remote Playback Device Audio Common Signal (U42 or U56)

L

L-BU

1405

Remote Playback Device Audio Common Signal (UE1)

M

OG/BK

1406

Remote Playback Device Left Audio Signal (UE1)

Speaker - LF


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

Speaker - LF

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LR


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

Speaker - LR

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - Rear Tweeter - 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: 12047767/Tray 2
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-2A

Speaker - Rear Tweeter - Left

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - Rear Tweeter - 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: 12047767/Tray 2
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094429/J-35616-2A

Speaker - Rear Tweeter - Right

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

Speaker - RF


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

Speaker - RF

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

Speaker - RR


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

Speaker - RR

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

Steering Wheel Control Switch Assembly - Left (UK3)


Object Number: 605502  Size: CH

Connector Part Information

  • OEM: 50-57-9404
  • Service: See Catalog
  • Description: 4-Way F (BK)

Terminal Part Information

  • Terminal: Not Serviced in Kit
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: N/A

Steering Wheel Control Switch Assembly - Left (UK3)

Pin

Wire Color

Circuit No.

Function

1

D-BU

1796

Steering Wheel Controls Signal

2

BK/WH

1451

Ground

3

GY/BK

1458

Instrument Panel Lamp Supply Voltage

4

WH/BK

644

Remote Radio Controls Supply Voltage

Steering Wheel Control Switch Assembly - Right (UK3)


Object Number: 605511  Size: CH

Connector Part Information

  • OEM: 50-57-9405
  • Service: See Catalog
  • Description: 5-Way F (BK)

Terminal Part Information

  • Terminal: Not Serviced in Kit
  • Core/Insulation Crimp: N/A
  • Release Tool/Test Probe: N/A

Steering Wheel Control Switch Assembly - Right (UK3)

Pin

Wire Color

Circuit No.

Function

1

D-BU

1796

Steering Wheel Controls Signal

2

WH/BK

644

Remote Radio Controls Supply Voltage

3

BK/WH

1451

Ground

4

GY/BK

1458

Instrument Panel Lamp Supply Voltage

5

PU

1375

Remote Radio Control Supply Voltage