GM Service Manual Online
For 1990-2009 cars only
Table 1: Low Frequency Audio Amplifier
Table 2: Multi-Disc CD Player
Table 3: Radio C1
Table 4: Radio C2
Table 5: Radio C3

Low Frequency Audio Amplifier


Object Number: 73156  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

TAN

201

Speaker Feed-Left Front +

A2

LT GRN

200

Speaker Feed-Right Front +

A3

BRN

199

Speaker Feed-Left Rear +

A4

DK BLU

46

Speaker Feed-Right Rear +

A5-A8

--

--

Not Used

A9

BLK/ WHT

351

Ground

A10-A11

--

--

Not Used

A12

ORN

640

Fused Battery Feed

B1

GRY

118

Speaker Return-Left Front

B2

DK GRN

117

Speaker Return-Right Front -

B3

YEL

116

Speaker Return-Left Rear -

B4

LT BLU

115

Speaker Return-Right Rear

B5-B8

--

--

Not Used

B9

DK BLU/WHT

346

Subwoofer Speaker Feed-Left Rear +

B10

LT GRN/BLK

1794

Subwoofer Speaker Feed-Left Rear -

B11

DK GRN

1795

Subwoofer Speaker Feed-Right Rear +

B12

LT BLU/BLK

315

Subwoofer Speaker Return-Right -

Multi-Disc CD Player


Object Number: 62435  Size: CH

Connector Part Information

    • 12047531
    • 10 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

TAN

511

CD LH Signal

2

LT GRN

512

CD RH Signal

3

DK GRN

1947

CD Audio Common

4

BARE

--

Drain

5

ORN

2640

Fused Battery Feed

6

--

--

Not Used

7

BLK/ WHT

351

Ground

8-9

--

--

Not Used

10

DK GRN

835

Entertainment and Comfort (E&C) Serial Data Communication

Radio C1


Object Number: 62435  Size: CH

Connector Part Information

    • 12047531
    • 10 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

GRY

118

Speaker Return-Left Front

2

TAN

201

Speaker Feed-Left Front +

3

DK GRN

117

Speaker Return-Right Front

4

LT GRN

200

Speaker Feed-Right Front +

5

BLK/ WHT

351

Ground-Clean

6

GRY/BLK

308

Park Lamp Switch Signal-Park-Lamps On

7

BRN/ WHT

230

Radio VF Dimmer Feed

8

DK GRN

145

Radio On Output

9

YEL

43

Fused Retained Accessory Power (RAP) Feed

10

ORN

640

Fused Battery Feed

Radio C2


Object Number: 62477  Size: CH

Connector Part Information

    • 12065785
    • 10 Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

11-13

--

--

Not Used

14

DK BLU

1796

Steering Wheel Control Input

15

DK GRN

835

Entertainment and Comfort (E&C) Serial Data Communication

16

--

--

Not Used

17

LT BLU

115

Speaker Return-Right Rear -

18

DK BLU

46

Speaker Feed-Right Rear +

19

YEL

116

Speaker Return-Left Rear -

20

BRN

199

Speaker Feed-Left Rear +

Radio C3


Object Number: 62467  Size: CH

Connector Part Information

    • 12064980
    • 9 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

7-9

--

--

Not Used

10

LT GRN

512

CD Right Signal

11

TAN

511

CD Left Signal

12

DK GRN

1947

CD Audio Common

13-15

--

--

Not Used