GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 TrailBlazer - 2WD 🢒 Body and Accessories 🢒 Entertainment 🢒 Entertainment Connector End Views
Table 1: Audio Amplifier C1 (w/UQA)
Table 2: Audio Amplifier C2 (w/UQA)
Table 3: Audio Amplifier C3 (w/UQA)
Table 4: DVD Player
Table 5: Noise Reduction Microphone
Table 6: Radio C1
Table 7: Radio C2 (w/UE1)
Table 8: Speaker - LF Door
Table 9: Speaker - LF I/P (w/UQA)
Table 10: Speaker - LR Door
Table 11: Speaker - RF Door
Table 12: Speaker - RF I/P (w/UQA)
Table 13: Speaker - RR Door
Table 14: Voice Recorder (w/UPC)
Table 15: Volume/AM/FM Switch (w/STW)

Audio Amplifier C1 (w/UQA)


Object Number: 73156 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A1

BARE

1573

Drain Wire

A2

BRN

199

Left Rear Speaker Output (+)

A3

YEL

116

Left Rear Speaker Output (-)

A4

DK BLU

1857

Left Front Midrange Speaker Output (+)

A5

LT BLU

1957

Left Front Midrange Speaker Output (-)

A6-A7

--

--

Not Used

A8

DK GRN

1953

Right Front Midrange Speaker Output (-)

A9

ORN

1853

Right Front Midrange Speaker Output (+)

A10

LT BLU

115

Right Rear Speaker Output (-)

A11

DK BLU

46

Right Rear Speaker Output (+) & UQA

A12

--

--

Not Used

B1

BARE

2012

Drain Wire

B2

BARE

2011

Drain Wire

B3-B7

--

--

Not Used

B8

ORN/BLK

1546

Right Front Low Level Audio Signal (-)

B9

DK GRN

1947

Left Front Low Level Audio Signal (-)

B10

TAN

511

Left Front Low Level Audio Signal (+)

B11

LT GRN

512

Right Front Low Level Audio Signal (+)

B12

--

--

Not Used

Audio Amplifier C2 (w/UQA)


Object Number: 73158 Size: CH

Connector Part Information
    • 12110626
    • 8-Way F Metri-Pack 280 Series Flexlock (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

1550

Ground

B

--

--

Not Used

C

DK GRN

117

Right Front Speaker Output (-)

D

TAN

201

Left Front Speaker Output (+)

E

GRY

118

Left Front Speaker Output (-)

F

LT GRN

200

Right Front Speaker Output (+)

G

--

--

Not Used

H

ORN

3740

Battery Positive Voltage

Audio Amplifier C3 (w/UQA)


Object Number: 280764 Size: CH

Connector Part Information
    • 12064993
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5

DK BLU

2272

Amplifier Class 2 Serial Data

6

--

--

Not Used

7

LT GRN/

BLK

1354

Drain Wire

8

DK GRN

1488

Noise Reduction Microphone Supply Voltage

9-10

--

--

Not Used

DVD Player


Object Number: 646420 Size: CH

Connector Part Information
    • 15332135
    • 4-Way F GT 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

3140

Battery Positive Voltage

B

YEL

443

Accessory Voltage

C

--

--

Not Used

D

BLK

1350

Ground

Noise Reduction Microphone


Object Number: 130687 Size: CH

Connector Part Information
    • 12047662
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

1354

Drain Wire

B

DK GRN

1488

Noise Reduction Microphone Supply Voltage

Radio C1


Object Number: 73156 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A1

ORN

1044

Radio Class 2 Serial Data

A2-A7

--

--

Not Used

A8

TAN

201

Left Front Speaker Output (+) (w/o UQA)

TAN

511

Left Front Low Level Audio Signal (+) (w/UQA)

A9

GRY

118

Left Front Speaker Output (-) (w/o UQA)

DK GRN

1947

Left Front Low Level Audio Signal (-) (w/UQA)

A10

LT BLU

115

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

BLK

1946

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

A11

DK BLU

46

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

DK BLU

546

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

A12

BLK/WHT

751

Ground

B1

ORN

340

Battery Positive Voltage

B2-B3

--

--

Not Used

B4

BRN/WHT

230

Instrument Panel Lamps Dimming Control

B5

BLK

2250

Ground

B6-B7

--

--

Not Used

B8

BRN

199

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

BRN/WHT

599

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

B9

YEL

116

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

BRN

1999

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

B10

DK GRN

117

Right Front Speaker Output (-) (w/o UQA)

ORN/BLK

1546

Right Front Low Level Audio Signal (-) (w/UQA)

B11

LT GRN

200

Right Front Speaker Output (+) (w/o UQA)

LT GRN

512

Right Front Low Level Audio Signal (+) (w/UQA)

B12

--

--

Not Used

Radio C2 (w/UE1)


Object Number: 73151 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

BARE

1705

Drain Wire

D-K

--

--

Not Used

L

BLK/WHT

372

Remote Radio Audio Output (-)

M

BRN/WHT

367

Remote Radio Left Audio Signal

Speaker - LF Door


Object Number: 130687 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

TAN

201

Left Front Speaker Output (+) (w/o UQA)

GRY

118

Left Front Speaker Output (-) (w/UQA)

B

GRY

118

Left Front Speaker Output (-) (w/o UQA)

TAN

201

Left Front Speaker Output (+) (w/UQA)

Speaker - LF I/P (w/UQA)


Object Number: 646421 Size: CH

Connector Part Information
    • 12059253
    • 2-Way F Metri-Pack 150 (LT GRN)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1957

Left Front Midrange Speaker Output (-)

B

DK BLU

1857

Left Front Midrange Speaker Output (+)

Speaker - LR Door


Object Number: 280768 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BRN

199

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

YEL

116

Left Rear Speaker Output (-) (w/UQA)

B

YEL

116

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

BRN

199

Left Rear Speaker Output (+) (w/UQA)

Speaker - RF Door


Object Number: 130687 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

LT GRN

200

Right Front Speaker Output (+) (w/o UQA)

DK GRN

117

Right Front Speaker Output (-) (w/UQA)

B

DK GRN

117

Right Front Speaker Output (-) (w/o UQA)

LT GRN

200

Right Front Speaker Output (+) (w/UQA)

Speaker - RF I/P (w/UQA)


Object Number: 646421 Size: CH

Connector Part Information
    • 12059253
    • 2-Way F Metri-Pack 150 (LT GRN)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

1953

Right Front Midrange Speaker Output (-)

B

ORN

1853

Right Front Midrange Speaker Output (+)

Speaker - RR Door


Object Number: 130724 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

DK BLU

46

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

LT BLU

115

Right Rear Speaker Output (-) (w/UQA)

B

LT BLU

115

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

DK BLU

46

Right Rear Speaker Output (+) (w/UQA)

Voice Recorder (w/UPC)


Object Number: 647928 Size: CH

Connector Part Information
    • 12103301
    • 3-Way P/C (NAT)

Pin

Wire Color

Circuit No.

Function

1

ORN

3140

Battery Positive Voltage

2

BRN/WHT

230

Instrument Panel Lamps Dimming Control

3

BLK

1350

Ground

Volume/AM/FM Switch (w/STW)


Object Number: 605507 Size: CH

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

Pin

Wire Color

Circuit No.

Function

1

WHT

2283

5 Volt Reference

2

LT GRN

1101

Remote Radio Control Signal

3

BRN

230

Instrument Panel Lamps Dimming Control

4

--

--

Not Used

5

BLK

2250

Ground

6

LT GRN

1101

Remote Radio Control Signal