GM Service Manual Online
For 1990-2009 cars only
Connector 1: Digital Radio Receiver (U2K)
Connector 2: Radio C1
Connector 3: Radio C2
Connector 4: Speaker - LF Door
Connector 5: Speaker - LF Door Tweeter (UQ3)
Connector 6: Speaker - LR Door (Extended/Crew Cab)
Connector 7: Speaker - RF Door
Connector 8: Speaker - RF Door Tweeter (UQ3)
Connector 9: Speaker - RR Door (Extended/Crew Cab)

Digital Radio Receiver (U2K)


Object Number: 850856  Size: CH

Connector Part Information

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

Terminal Part Information

  • Pins: 2, 3, 7, 9, 10, 16
  • 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

4-6

--

--

Not Used

7

PU

1807

Class 2 Serial Data

8

--

--

Not Used

9

BK/WH

1151

Ground

10

BK/WH

372

Remote Playback Device Audio Common Signal

11-15

--

--

Not Used

16

OG

1140

Battery Positive Voltage

Radio C1


Object Number: 73156  Size: CH

Connector Part Information

  • OEM: 12110088
  • Service: 15306210
  • Description: 24-Way F Micro-Pack 100 Series (GY)

Terminal Part Information

  • Pins: A1, A2, A8, A9, A10, A11, B8, B9, B10, B11
  • 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

PU

1807

Class 2 Serial Data

A2

PU

1807

Class 2 Serial Data

A3-A7

--

--

Not Used

A8

GY

118

Left Front Speaker Output (-)

A9

TN

201

Left Front Speaker Output (+)

A10

D-BU

46

Right Rear Speaker Output (+)

A11

L-BU

115

Right Rear Speaker Output (-)

A12

BK/WH

1151

Ground

B1

OG

1140

Battery Positive Voltage

B2-B7

--

--

Not Used

B8

YE

116

Left Rear Speaker Output (-)

B9

BN

199

Left Rear Speaker Output (+)

B10

L-GN

200

Right Front Speaker Output (+)

B11

D-GN

117

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

  • Pins: C, G, H, J, K, L, M
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Radio C2

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

BARE

1573

Drain Wire (U2K)

D-F

--

--

Not Used

G

PU

1807

Class 2 Serial Data

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

OG/BK

1406

Remote Playback Device Left Audio Signal (UE1)

M

L-BU

1405

Remote Playback Device Audio Common Signal (UE1)

Speaker - LF Door


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12052832
  • Service: 12101825
  • Description: 2-Way 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

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LF Door Tweeter (UQ3)


Object Number: 1334462  Size: CH

Connector Part Information

  • OEM: 15427362
  • Service: 88987841
  • Description: 2-Way M 090 II (WH)

Terminal Part Information

  • Terminal/Tray: 15305100/19
  • Core/Insulation Crimp: A/E/A
  • Release Tool/Test Probe: 12094429/J-35616-19 (BK)

Speaker - LF Door Tweeter (UQ3)

Pin

Wire Color

Circuit No.

Function

1

GY

118

Left Front Speaker Output (-)

2

TN

201

Left Front Speaker Output (+)

Speaker - LR Door (Extended/Crew Cab)


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12052832
  • Service: 12101825
  • Description: 2-Way 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 (Extended/Crew Cab)

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker - RF Door


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12052832
  • Service: 12101825
  • Description: 2-Way 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

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 (UQ3)


Object Number: 1334462  Size: CH

Connector Part Information

  • OEM: 15427362
  • Service: 88987841
  • Description: 2-Way M 090 II (WH)

Terminal Part Information

  • Terminal/Tray: 15305100/19
  • Core/Insulation Crimp: A/E/A
  • Release Tool/Test Probe: 12094429/J-35616-19 (BK)

Speaker - RF Door Tweeter (UQ3)

Pin

Wire Color

Circuit No.

Function

1

D-GN

117

Right Front Speaker Output (-)

2

L-GN

200

Right Front Speaker Output (+)

Speaker - RR Door (Extended/Crew Cab)


Object Number: 280768  Size: CH

Connector Part Information

  • OEM: 12052832
  • Service: 12101825
  • Description: 2-Way 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 - RR Door (Extended/Crew Cab)

Pin

Wire Color

Circuit No.

Function

A

YE

115

Right Rear Speaker Output (-)

B

BN

46

Right Rear Speaker Output (+)