GM Service Manual Online
For 1990-2009 cars only
Connector 1: Antenna Amplifier Module
Connector 2: Audio Amplifier C1 (U85)
Connector 3: Audio Amplifier C2 (U85)
Connector 4: Audio Amplifier C3 (U85)
Connector 5: Digital Radio Receiver (U2K)
Connector 6: Radio C1
Connector 7: Radio C2 (U2K/UE1)
Connector 8: Speaker - LF Door (Convertible)
Connector 9: Speaker - LF Door (Coupe/Sedan w/U85)
Connector 10: Speaker - LF Door (Sedan w/UZ6)
Connector 11: Speaker - LF Door Tweeter (UZ6)
Connector 12: Speaker - LF Door Tweeter (U85)
Connector 13: Speaker - LR (Convertible)
Connector 14: Speaker - LR (UZ6)
Connector 15: Speaker - LR (U85)
Connector 16: Speaker - RF Door (Convertible)
Connector 17: Speaker - RF Door (Coupe/Sedan w/U85)
Connector 18: Speaker - RF Door (Sedan w/UZ6)
Connector 19: Speaker - RF Door (U85)
Connector 20: Speaker - RF Door Tweeter (UZ6)
Connector 21: Speaker - RF Door Tweeter (U85)
Connector 22: Speaker - RR (Convertible)
Connector 23: Speaker - RR (UZ6)
Connector 24: Speaker - RR (U85)

Antenna Amplifier Module


Object Number: 1459093  Size: CH

Connector Part Information

  • OEM: 12158481
  • Service: 88956513
  • Description: 1-Way F Positive Lock 187 Series (WH)

Terminal Part Information

  • Terminal/Tray: 170325-1/24
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: J-38125-218/J-35616-40 (BU)

Antenna Amplifier Module

Pin

Wire Color

Circuit No.

Function

1

PK

5165

Antenna 12-Volt Switched Supply Voltage

Audio Amplifier C1 (U85)


Object Number: 1653389  Size: CH

Connector Part Information

  • OEM: 15491286
  • Service: 88988652
  • Description: 8-Way F Receptacle 2.8 Series (BK)

Terminal Part Information

  • Pins: 1-2
  • Terminal/Tray: 8100-4445/22
  • Core/Insulation Crimp: Pins 1 - F/D
  • Core/Insulation Crimp: Pins 2 - 4/4
  • Release Tool/Test Probe: 15315247/J-35616-35 (VT)
  • Pins: 3-4, 7-8
  • Terminal/Tray: 8100-4444/22
  • Core/Insulation Crimp: 2/A
  • Release Tool/Test Probe: 15315247/J-35616-35 (VT)

Audio Amplifier C1 (U85)

Pin

Wire Color

Circuit No.

Function

1

RD/WH

1840

Battery Positive Voltage

2

BK

1250

Ground

3

D-BU/WH

346

Right Rear Subwoofer Speaker Output (+) (Coupe/Sedan)

D-GN

1795

Right Subwoofer Speaker Output (+) (Convertible)

4

L-GN/BK

1794

Right Rear Subwoofer Speaker Output (-) (Coupe/Sedan)

L-BU/BK

315

Right Subwoofer Speaker Output (-) (Convertible)

5-6

--

--

Not Used

7

L-GN/BK

1794

Left Rear Subwoofer Speaker Output (+)

8

D-BU/WH

346

Left Rear Subwoofer Speaker Output (-)

Audio Amplifier C2 (U85)


Object Number: 1653404  Size: CH

Connector Part Information

  • OEM: 15489823
  • Service: 15134091
  • Description: 16-Way F Receptacle 1.5 Series (BK)

Terminal Part Information

  • Terminal/Tray: 8240-0128/22
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Audio Amplifier C2 (U85)

Pin

Wire Color

Circuit No.

Function

1

TN

1856

Left Front Tweeter Speaker Output (+)

2

YE

1956

Left Front Tweeter Speaker Output (-)

3

L-GN

1852

Right Front Tweeter Speaker Output (+)

4

PU

1952

Right Front Tweeter Speaker Output (-)

5

YE

116

Left Rear Speaker Output (-)

6

BN

199

Left Rear Speaker Output (+)

7

L-BU

115

Right Rear Speaker Output (-)

8

D-BU

46

Right Rear Speaker Output (+)

9-12

--

--

Not Used

13

L-GN

200

Right Front Speaker Output (+)

14

D-GN

117

Right Front Speaker Output (-)

15

TN

201

Left Front Speaker Output (+)

16

GY

118

Left Front Speaker Output (-)

Audio Amplifier C3 (U85)


Object Number: 1653409  Size: CH

Connector Part Information

  • OEM: 15491285
  • Service: 15136073
  • Description: 16-Way F 064 Series (BN)

Terminal Part Information

  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

Audio Amplifier C3 (U85)

Pin

Wire Color

Circuit No.

Function

1

TN

511

Left Front Low Level Audio Signal (+)

2

D-GN

1947

Left Front Low Level Audio Signal (-)

3

BN

1999

Left Rear Low Level Audio Signal (-)

4

BN/WH

599

Left Rear Low Level Audio Signal (+)

5

OG

5748

Amplifier Mute

6

PK

5165

Antenna 12V Switched Supply Voltage

7-8

--

--

Not Used

9

L-GN

1948

Right Front Low Level Audio Signal (-) (Coupe)

L-GN/BK

1948

Right Front Low Level Audio Signal (-) (Convertible/Sedan)

10

D-GN

512

Right Front Low Level Audio Signal (+)

11

D-BU

546

Right Rear Low Level Audio Signal (+)

12

TN

1946

Right Rear Low Level Audio Signal (-)

13-16

--

--

Not Used

Digital Radio Receiver (U2K)


Object Number: 850856  Size: CH

Connector Part Information

  • OEM: 15416970
  • Service: 22715969
  • Description: 16-Way F Micro-Pack 64 Series (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

Left Audio Signal (+)

3

D-GN/WH

368

Right Audio Signal (+)

4

--

--

Not Used

5

D-GN

5060

Low Speed GMLAN Serial Data

6

D-GN

5060

Low Speed GMLAN Serial Data

7-8

--

--

Not Used

9

BK

1050

Ground

10

TN/WH

372

Audio Common

11

BARE

814

Drain Wire

12-15

--

--

Not Used

16

RD/WH

1240

Battery Positive Voltage

Radio C1


Object Number: 130690  Size: CH

Connector Part Information

  • OEM: 12110206
  • Service: 12110206
  • Description: 24-Way F Micro-Pack 100 Series (L-BU)

Terminal Part Information

  • Pins: A1-A10, B3, B6, B9-B10
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
  • Pins: A12, B1
  • 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

D-GN

1947

Left Front Low Level Audio Signal (-) (U85)

GY

118

Left Front Speaker Output (-) (UZ6)

A2

TN

511

Left Front Low Level Audio Signal (+) (U85)

TN

201

Left Front Speaker Output (+) (UZ6)

A3

TN

1946

Right Rear Low Level Audio Signal (-) (U85)

L-BU

115

Right Rear Speaker Output (-) (UZ6)

A4

D-BU

546

Right Rear Low Level Audio Signal (+) (U85)

D-BU

46

Right Rear Speaker Output (+) (UZ6)

A5

BN/WH

599

Left Rear Low Level Audio Signal (+) (U85)

BN

199

Left Rear Speaker Output (+) (UZ6)

A6

BN

1999

Left Rear Low Level Audio Signal (-) (U85)

YE

116

Left Rear Low Level Audio Signal (-) (UZ6)

A7

D-GN

512

Right Front Low Level Audio Signal (+) (U85)

L-GN

200

Right Front Speaker Output (+) (UZ6)

A8

L-GN

1948

Right Front Low Level Audio Signal (-) (U85)

D-GN

117

Right Front Speaker Output (-) (UZ6)

A9

D-BU

1796

Steering Wheel Controls Signal (UK3)

A10

WH/BK

644

10-Volt Reference (UK3)

A11

--

--

Not Used

A12

BK/WH

651

Ground

B1

RD/WH

340

Battery Positive Voltage

B2

--

--

Not Used

B3

OG

5748

Amplifier Mute (U85)

B4-B5

--

--

Not Used

B6

PK

5165

Antenna 12-Volt Switched Supply Voltage

B7-B8

--

--

Not Used

B9

D-GN

5060

Low Speed GMLAN Serial Data

B10

D-GN

5060

Low Speed GMLAN Serial Data

B11- B12

--

--

Not Used

Radio C2 (U2K/UE1)


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/UE1)

Pin

Wire Color

Circuit No.

Function

A-G

--

--

Not Used

H

D-GN/WH

368

Right Audio Signal (+) (U2K)

J

BN/WH

367

Left Audio Signal (+) (U2K)

K

TN/WH

372

Audio Common (U2K)

L

OG/BK

2061

Cellular Telephone Voice Low Reference (UE1)

M

PK/BK

2062

Cellular Telephone Voice Signal (UE1)

Speaker - LF Door (Convertible)


Object Number: 130637  Size: CH

Connector Part Information

  • OEM: 12064760
  • Service: 12085208
  • Description: 4-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 - LF Door (Convertible)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

C

L-GN/BK

1794

Left Subwoofer Speaker Output (-)

B

D-BU/WH

346

Left Subwoofer Speaker Output (+)

Speaker - LF Door (Coupe/Sedan w/U85)


Object Number: 130724  Size: CH

Connector Part Information

  • OEM: 12064869
  • Service: 12117323
  • Description: 2-Way F Metri-Pack 150 Series (BU)

Terminal Part Information

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

Speaker - LF Door (Coupe/Sedan w/U85)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LF Door (Sedan w/UZ6)


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12064867
  • Service: 88987981
  • 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 Door (Sedan w/UZ6)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LF Door Tweeter (UZ6)


Object Number: 766913  Size: CH

Connector Part Information

  • OEM: 12052833
  • Service: 12117275
  • Description: 2-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

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

Speaker - LF Door Tweeter (UZ6)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LF Door Tweeter (U85)


Object Number: 766913  Size: CH

Connector Part Information

  • OEM: 12052833
  • Service: 12117275
  • Description: 2-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

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

Speaker - LF Door Tweeter (U85)

Pin

Wire Color

Circuit No.

Function

A

YE

1956

Left Front Tweeter Speaker Output (-)

B

TN

1856

Left Front Tweeter Speaker Output (+)

Speaker - LR (Convertible)


Object Number: 130724  Size: CH

Connector Part Information

  • OEM: 12064869
  • Service: 12117323
  • Description: 2-Way F Metri-Pack 150 Series (BU)

Terminal Part Information

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

Speaker - LR (Convertible)

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - LR (UZ6)


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 (UZ6)

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - LR (U85)


Object Number: 130637  Size: CH

Connector Part Information

  • OEM: 12064760
  • Service: 12085208
  • Description: 4-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 (U85)

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

C

L-GN/BK

1794

Left Rear Subwoofer Speaker Output (-)

D

D-BU/WH

346

Left Rear Subwoofer Speaker Output (+)

Speaker - RF Door (Convertible)


Object Number: 130637  Size: CH

Connector Part Information

  • OEM: 12064760
  • Service: 12085208
  • Description: 4-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 - RF Door (Convertible)

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

C

L-BU/BK

315

Right Subwoofer Speaker Output (-)

D

D-GN

200

Right Subwoofer Speaker Output (+)

Speaker - RF Door (Coupe/Sedan w/U85)


Object Number: 130724  Size: CH

Connector Part Information

  • OEM: 12064869
  • Service: 12117323
  • Description: 2-Way F Metri-Pack 150 Series (BU)

Terminal Part Information

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

Speaker - RF Door (Coupe/Sedan w/U85)

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 (Sedan w/UZ6)


Object Number: 130687  Size: CH

Connector Part Information

  • OEM: 12064867
  • Service: 88987891
  • 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 (Sedan w/UZ6)

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 (U85)


Object Number: 130724  Size: CH

Connector Part Information

  • OEM: 12064869
  • Service: 12117323
  • Description: 2-Way F Metri-Pack 150 Series (BU)

Terminal Part Information

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

Speaker - RF Door (U85)

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 (UZ6)


Object Number: 766913  Size: CH

Connector Part Information

  • OEM: 12052833
  • Service: 12117275
  • Description: 2-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

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

Speaker - RF Door Tweeter (UZ6)

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 (U85)


Object Number: 766913  Size: CH

Connector Part Information

  • OEM: 12052833
  • Service: 12117575
  • Description: 2-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

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

Speaker - RF Door Tweeter (U85)

Pin

Wire Color

Circuit No.

Function

A

PU

1952

Right Front Tweeter Speaker Output (-)

B

L-GN

1852

Right Front Tweeter Speaker Output (+)

Speaker - RR (Convertible)


Object Number: 130724  Size: CH

Connector Part Information

  • OEM: 12064869
  • Service: 12117323
  • Description: 2-Way F Metri-Pack 150 Series (BU)

Terminal Part Information

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

Speaker - RR (Convertible)

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

Speaker - RR (UZ6)


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 (UZ6)

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

Speaker - RR (U85)


Object Number: 130637  Size: CH

Connector Part Information

  • OEM: 12064760
  • Service: 12085208
  • Description: 4-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 (U85)

Pin

Wire Color

Circuit No.

Function

A

L-BU

115

Right Rear Speaker Output (-)

B

D-BU

46

Right Rear Speaker Output (+)

C

L-GN/BK

1794

Right Rear Subwoofer Speaker Output (-)

D

D-BU/WH

346

Right Rear Subwoofer Speaker Output (+)