GM Service Manual Online
For 1990-2009 cars only
Table 1: Radio C1
Table 2: Radio C2
Table 3: Speaker - LF Door Midrange
Table 4: Speaker - LR (UQ3/UX7)
Table 5: Speaker - RF Door Midrange
Table 6: Speaker - RR (UQ3/UX7)
Table 7: Steering Wheel Controls - Left (UK3)
Table 8: Steering Wheel Controls - Right (UK3)

Radio C1


Object Number: 73156  Size: CH

Connector Part Information

    • 12110088
    • 24-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A1

ORN

1044

Radio Class 2 Serial Data

A2-A5

--

--

Not Used

A6

PPL

2335

Steering Wheel Control Supply Voltage (UK3)

A7

DK BLU

1796

Steering Wheel Controls Signal (UK3)

A8

TAN

511

Left Front Low Level Audio Signal (+) (UQ3/UX7 w/UK3)

TAN

201

Left Front Speaker Output (+) (UQ3/UX7 w/o UK3)

A9

DK GRN

1947

Left Front Low Level Audio Signal (-) (UQ3/UX7 w/UK3)

GRY

118

Left Front Speaker Output (-) (UQ3/UX7 w/o UK3)

A10

BLK

1946

Right Rear Low Level Audio Signal (-) (UQ3/UX7 w/UK3)

LT BLU

115

Right Rear Speaker Output (-) (UQ3/UX7 w/o UK3)

A11

DK BLU

546

Right Rear Low Level Audio Signal (+) (UQ3/UX7 w/UK3)

DK BLU

46

Right Rear Speaker Output (+) (UQ3/UX7 w/o UK3)

A12

BLK/WHT

351

Ground

B1

ORN

640

Battery Positive Voltage

B2

--

--

Not Used

B3

DK GRN

145

Antenna Relay Coil Supply Voltage

B4

GRY

8

Instrument Panel Lamp Dimmer Switch Signal

B5

BLK

1550

Ground

B6

PPL

2232

Amplifier Present Signal (UQ3/UX7 w/UK3)

B7

--

--

Not Used

B8

BRN

599

Left Rear Low Level Audio Signal (+) (UQ3/UX7 w/UK3)

BRN

199

Left Rear Speaker Output (+) (UQ3/UX7 w/o UK3)

B9

BRN/WHT

1999

Left Rear Low Level Audio Signal (-) (UQ3/UX7 w/UK3)

YEL

116

Left Rear Speaker Output (-) (UQ3/UX7 w/o UK3)

B10

LT GRN/WHT

1948

Right Front Low Level Audio Signal (-) (UQ3/UX7 w/UK3)

DK GRN

117

Right Front Speaker Output (-) (UQ3/UX7 w/o UK3)

B11

LT GRN

512

Right Front Low Level Audio Signal (+) (UQ3/UX7 w/UK3)

LT GRN

200

Right Front Speaker Output (+) (UQ3/UX7 w/o UK3)

B12

YEL

32

Instrument Panel Lamp Fuse Supply Voltage 1

Radio C2


Object Number: 73151  Size: CH

Connector Part Information

    • 12064799
    • 12-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A-K

--

--

Not Used

L

BLK/WHT

372

Remote Radio Audio Output (-)

M

BRN/WHT

367

Remote Radio Left Audio Signal

Speaker - LF Door Midrange


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

118

Left Front Speaker Output (-)

B

TAN

201

Left Front Speaker Output (+)

Speaker - LR (UQ3/UX7)


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

116

Left Rear Speaker Output (-)

B

BRN

199

Left Rear Speaker Output (+)

Speaker - RF Door Midrange


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Right Front Speaker Output (-)

B

LT GRN

200

Right Front Speaker Output (+)

Speaker - RR (UQ3/UX7)


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

115

Right Rear Speaker Output (-)

B

DK BLU

46

Right Rear Speaker Output (+)

Steering Wheel Controls - Left (UK3)


Object Number: 605502  Size: CH

Connector Part Information

    • 50-57-9404 (Molex)
    • 4-Way F 2.54 mm Pitch SL Crimp Housing, Single Row, Version G, Positive Latch (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

--

--

2

WHT

--

Steering Wheel Controls Signal

3

DK BLU

--

Instrument Panel Lamp Supply Voltage 1

4

RED

--

Illumination Ground

Steering Wheel Controls - Right (UK3)


Object Number: 605511  Size: CH

Connector Part Information

    • 50-57-9405 (Molex)
    • 5-Way F 2.54 mm Pitch SL Crimp Housing, Single Row, Version G, Positive Latch (BLK)

Pin

Wire Color

Circuit No.

Function

1

GRY

--

Accessory Voltage

2

WHT

--

Steering Wheel Controls Signal

3

DK BLU

--

Instrument Panel Lamp Supply Voltage 1

4

RED

--

Illumination Ground

5

BLK

--

--