GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 TrailBlazer - 2WD 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E/4L65-E 🢒 Entertainment Connector End Views
Table 1: Audio Amplifier C1 (w/UQA)
Table 2: Audio Amplifier C2 (w/UQA)
Table 3: Digital Radio Receiver (w/U2K)
Table 4: Digital Video Disc (DVD) Player (U42)
Table 5: Radio C1 (w/o UQA)
Table 6: Radio C1 (w/UQA)
Table 7: Radio C2
Table 8: Speaker Assembly - LF Door (w/o UQA)
Table 9: Speaker - LF Door (w/UQA)
Table 10: Speaker - LF Instrument Panel (I/P) (w/UQA)
Table 11: Speaker - LR Door (w/o UQA)
Table 12: Speaker - LR Door (w/UQA)
Table 13: Speaker Assembly - RF Door (w/o UQA)
Table 14: Speaker - RF Door (w/UQA)
Table 15: Speaker - RF Instrument Panel (I/P) (w/UQA)
Table 16: Speaker - RR Door (w/o UQA)
Table 17: Speaker - RR Door (w/UQA)
Table 18: Steering Wheel Control Switch Assembly - Upper Left (STW)
Table 19: Steering Wheel Control Switch Assembly - Upper Right (STW)

Audio Amplifier C1 (w/UQA)


Object Number: 73156 Size: CH

Connector Part Information
    • 12110088
    • 24-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

A1-A4

--

--

Not Used

A5

TN

201

Left Front Speaker Output (+)

A6

GY

118

Left Front Speaker Output (-)

A7

L-GN

200

Right Front Speaker Output (+)

A8

D-GN

117

Right Front Speaker Output (-)

A9

D-BU

1857

Left Front Midrange Speaker Output (+)

A10

L-BU

1957

Left Front Midrange Speaker Output (-)

A11

OG

1853

Right Front Midrange Speaker Output (+)

A12

D-GN

1953

Right Front Midrange Speaker Output (-)

B1

GY/BK

2334

Radio Mute Signal

B2

PU

493

Rear Seat Audio Enable Signal

B3

BK

1946

Right Rear Low Level Audio Signal (-)

B4

D-BU

546

Right Rear Low Level Audio Signal (+)

B5

D-GN/WH

1547

Left Rear Low Level Audio Signal (-)

B6

BN

599

Left Rear Low Level Audio Signal (+)

B7

OG/BK

1546

Right Front Low Level Audio Signal (-)

B8

L-GN

512

Right Front Low Level Audio Signal (+)

B9

D-GN

1947

Left Front Low Level Audio Signal (-)

B10

TN

511

Left Front Low Level Audio Signal (+)

B11

PK

314

Radio On Signal

B12

BARE

2099

Drain Wire

Audio Amplifier C2 (w/UQA)


Object Number: 73158 Size: CH

Connector Part Information
    • 15357040
    • 8-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

1550

Ground (LWB)

BK

1650

Ground (SWB)

B

BN

199

Left Rear Speaker Output (+)

C

D-BU

46

Right Rear Speaker Output (+)

D

--

--

Not Used

E

BARE

1573

Drain Wire

F

L-BU

115

Right Rear Speaker Output (-)

G

YE

116

Left Rear Speaker Output (-)

H

OG

3740

Battery Positive Voltage

Digital Radio Receiver (w/U2K)


Object Number: 850856 Size: CH

Connector Part Information
    • 15394150
    • 16-Way F Micro 64 (BK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BN/WH

367

Left Audio Signal (+)

3

D-GN/WH

368

Right Audio Signal (+)

4-6

--

--

Not Used

7

YE

5679

Class 2 Serial Data

8

--

--

Not Used

9

BK/WH

751

Ground

10

BK/WH

372

Audio Common

11-15

--

--

Not Used

16

OG

340

Battery Positive Voltage

Digital Video Disc (DVD) Player (U42)


Object Number: 850857 Size: CH

Connector Part Information
    • 15341086
    • 12-Way F GT 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

YE/BK

5485

Class 2 Serial Data

3-4

--

--

Not Used

5

D-GN/WH

368

Right Audio Signal (+)

6

BN/WH

367

Left Audio Signal (+)

7

BK

1350

Ground

8

--

--

Not Used

9

OG

3140

Battery Positive Voltage

10-11

--

--

Not Used

12

BK/WH

372

Audio Common

Radio C1 (w/o UQA)


Object Number: 73156 Size: CH

Connector Part Information
    • 12110088
    • 24-Way F Micro-Pack 100 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A1

OG

1044

Radio Class 2 Serial Data

A2-A7

--

--

Not Used

A8

TN

201

Left Front Speaker Output (+)

A9

GY

118

Left Front Speaker Output (-)

A10

L-BU

115

Right Rear Speaker Output (-) (w/o UK6)

BK

1946

Right Rear Low Level Audio Signal (-) (w/UK6)

A11

D-BU

46

Right Rear Speaker Output (+) (w/o UK6)

D-BU

546

Right Rear Low Level Audio Signal (+) (w/UK6)

A12

BK/WH

751

Ground

B1

OG

340

Battery Positive Voltage

B2-B7

--

--

Not Used

B8

BN

199

Left Rear Speaker Output (+) (w/o UK6)

BN/WH

599

Left Rear Low Level Audio Signal (+) (w/UK6)

B9

YE

116

Left Rear Speaker Output (-) (w/o UK6)

D-GN/WH

1547

Left Rear Low Level Audio Signal (-) (w/UK6)

B10

D-GN

117

Right Front Speaker Output (-)

B11

L-GN

200

Right Front Speaker Output (+)

B12

--

--

Not Used

Radio C1 (w/UQA)


Object Number: 73156 Size: CH

Connector Part Information
    • 12110088
    • 24-Way F Micro-Pack 100 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A1

OG

1044

Radio Class 2 Serial Data

A2

--

--

Not Used

A3

PU

493

Rear Seat Audio Enable Signal

A4

--

--

Not Used

A5

BARE

2099

Drain Wire

A6-A7

--

--

Not Used

A8

TN

511

Left Front Low Level Audio Signal (+)

A9

D-GN

1947

Left Front Low Level Audio Signal (-)

A10

BK

1946

Right Rear Low Level Audio Signal (-)

A11

D-BU

546

Right Rear Low Level Audio Signal (+)

A12

BK/WH

751

Ground

B1

OG

340

Battery Positive Voltage

B2

--

--

Not Used

B3

PK

314

Radio On Signal

B4-B5

--

--

Not Used

B6

GY/BK

2334

Radio Mute Signal

B7

--

--

Not Used

B8

BN

599

Left Rear Low Level Audio Signal (+)

B9

D-GN/WH

1547

Left Rear Low Level Audio Signal (-)

B10

OG/BK

1546

Right Front Low Level Audio Signal (-)

B11

L-GN

512

Right Front Low Level Audio Signal (+)

B12

--

--

Not Used

Radio C2


Object Number: 73151 Size: CH

Connector Part Information
    • 12064799
    • 12-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

BARE

1573

Drain Wire (U42/U2k))

D

--

--

Not Used

E

D-GN/WH

817

Vehicle Speed Signal (w/UQA)

F-G

--

--

Not Used

H

D-GN/WH

368

Right Audio Signal (+) (U42/U2K)

J

BN/WH

367

Left Audio Signal (-) (U42/U2K)

K

BK/WH

372

Audio Common (U42/U2K)

L

OG/BK

2061

Remote Radio Audio Output (-) (w/UE1)

M

PK/BK

2062

Remote Radio Left Audio Signal (w/UE1)

Speaker Assembly - LF Door (w/o UQA)


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

TN

201

Left Front Speaker Output (+)

B

GY

118

Left Front Speaker Output (-)

Speaker - LF Door (w/UQA)


Object Number: 130687 Size: CH

Connector Part Information
    • 12064867
    • 2-Way F Metri-Pack 150 Series (WH)

Pin

Wire Color

Circuit No.

Function

A

GY

118

Left Front Speaker Output (-)

B

TN

201

Left Front Speaker Output (+)

Speaker - LF Instrument Panel (I/P) (w/UQA)


Object Number: 646421 Size: CH

Connector Part Information
    • 12059253
    • 2-Way F Metri-Pack 150 Series (L-GN)

Pin

Wire Color

Circuit No.

Function

A

L-BU

1957

Left Front Midrange Speaker Output (-)

B

D-BU

1857

Left Front Midrange Speaker Output (+)

Speaker - LR Door (w/o UQA)


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BN

199

Left Rear Speaker Output (+)

B

YE

116

Left Rear Speaker Output (-)

Speaker - LR Door (w/UQA)


Object Number: 130724 Size: CH

Connector Part Information
    • 12064869
    • 2-Way F Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

YE

116

Left Rear Speaker Output (-)

B

BN

199

Left Rear Speaker Output (+)

Speaker Assembly - RF Door (w/o UQA)


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN

200

Right Front Speaker Output (+)

B

D-GN

117

Right Front Speaker Output (-)

Speaker - RF Door (w/UQA)


Object Number: 130687 Size: CH

Connector Part Information
    • 12064867
    • 2-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-)

B

L-GN

200

Right Front Speaker Output (+)

Speaker - RF Instrument Panel (I/P) (w/UQA)


Object Number: 646421 Size: CH

Connector Part Information
    • 12059253
    • 2-Way F Metri-Pack 150 Series (L-GN)

Pin

Wire Color

Circuit No.

Function

A

D-GN

1953

Right Front Midrange Speaker Output (-)

B

OG

1853

Right Front Midrange Speaker Output (+)

Speaker - RR Door (w/o UQA)


Object Number: 280768 Size: CH

Connector Part Information
    • 12052832
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

D-BU

46

Right Rear Speaker Output (+)

B

L-BU

115

Right Rear Speaker Output (-)

Speaker - RR Door (w/UQA)


Object Number: 130724 Size: CH

Connector Part Information
    • 12064869
    • 2-Way F Metri-Pack 150 Series (BU)

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 - Upper Left (STW)


Object Number: 605511 Size: CH

Connector Part Information
    • 50-57-9405
    • 5-Way F Molex (BK)

Pin

Wire Color

Circuit No.

Function

1

L-GN

1101

Remote Radio Control Signal

2

BN

230

Instrument Panel Lamps Dimming Control

3

BK

2250

Ground

4

--

--

Not Used

5

L-GN

1011

Remote Radio Control Signal

Steering Wheel Control Switch Assembly - Upper Right (STW)


Object Number: 605507 Size: CH

Connector Part Information
    • 50-57-9406
    • 6-Way F Molex (BK)

Pin

Wire Color

Circuit No.

Function

1

WH

2283

12-Volt Reference

2

L-GN

1101

Remote Radio Control Signal

3

BN

230

Instrument Panel Lamps Dimming Control

4

--

--

Not Used

5

BK

2250

Ground

6

L-GN

1011

Remote Radio Control Signal