GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 Venture Ext. 🢒 Body and Accessories 🢒 Wiring Systems 🢒 HVAC Connector End Views
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Air Temperature Actuator - Left
Table 4: Air Temperature Actuator - Right
Table 5: Air Temperature Actuator - Auxiliary
Table 6: Ambient Air Temperature Sensor
Table 7: Blower Motor
Table 8: Blower Motor Relay -- Auxiliary
Table 9: Blower Motor - Auxiliary
Table 10: Blower Motor Relay -- Auxiliary
Table 11: Blower Motor Resistor Assembly
Table 12: Blower Motor Resistor Assembly - Auxiliary
Table 13: Evaporative Temperature Sensor
Table 14: HVAC Control Module - Auxiliary Connector C1
Table 15: HVAC Control Module - Auxiliary Connector C2
Table 16: HVAC Control Module Connector C1
Table 17: HVAC Control Module Connector C2
Table 18: Rear Window Wiper/Washer and Multifunction Switch Connector C2, Blower Switch - Auxiliary
Table 19: Mode Actuator
Table 20: Mode Actuator - Auxiliary
Table 21: Rear Video/Audio/HVAC Module - C1
Table 22: Rear Video/Audio/HVAC Module - C2
Table 23: Rear Video/Audio/HVAC Module - C3
Table 24: Recirculation Actuator

A/C Compressor Clutch


Object Number: 537107 Size: CH

Connector Part Information
    • 12052644
    • 2-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

1050

Ground

B

DK GRN

59

A/C Compressor Clutch Supply Voltage

A/C Refrigerant Pressure Sensor


Object Number: 258299 Size: CH

Connector Part Information
    • 1211-0192
    • 3-Way F Metri-Pack 150 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

2751

Low Reference

B

GRY

2700

5-Volt Reference

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator - Left


Object Number: 40427 Size: CH

Connector Part Information
    • 12064978
    • 6-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

BLK

150

Ground

4

DK BLU

1199

Left Air Temperature Door Control

5

--

--

Not Used

6

BRN

241

Ignition 3 Voltage

Air Temperature Actuator - Right


Object Number: 280764 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

150

Ground

8

WHT/BLK

1236

Right Air Temperature Door Control

9

--

--

Not Used

10

BRN

241

Ignition 3 Voltage

Air Temperature Actuator - Auxiliary


Object Number: 280764 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

850

Ground

8

BLK

2614

Air Temperature Door Control - Auxiliary

9

--

--

Not Used

10

BRN

641

Ignition 3 Voltage

Ambient Air Temperature Sensor


Object Number: 35437 Size: CH

Connector Part Information
    • 1205-2641
    • 2-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/

BLK

735

Ambient Air Temperature Sensor Signal

B

BLK

1550

Ground

Blower Motor


Object Number: 62488 Size: CH

Connector Part Information
    • 12084957
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

--

Blower Motor Supply Voltage

B

BLK/WHT

--

Ground

Blower Motor Relay -- Auxiliary


Object Number: 281201 Size: CH

Connector Part Information
    • 12110541
    • 6-Way F Metri-Pack 280 Series Flexlock (BLK)

Pin

Wire Color

Circuit No.

Function

A1

BRN

641

Blower Motor Supply Voltage

A2

BLK

850

Ground

B1

--

--

Not Used

B2

WHT

2613

Auxiliary Blower Motor Medium 1/2 Speed Control

C1

RED

2620

Auxiliary Blower Motor Speed Control

C2

ORN

1052

Auxiliary Blower Motor High Speed Relay Control

Blower Motor - Auxiliary


Object Number: 62488 Size: CH

Connector Part Information
    • 12084957
    • 2-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

641

Ignition 3 Voltage

B

RED

2620

Auxiliary Blower Motor Seed Control

Blower Motor Relay -- Auxiliary


Object Number: 281201 Size: CH

Connector Part Information
    • 12110541
    • 6-Way F Metri-Pack 280 Series Flexlock (BLK)

Pin

Wire Color

Circuit No.

Function

A1

BRN

641

Ignition 3 Voltage

A2

BLK

850

Ground

B1

--

--

Not Used

B2

WHT

2613

Auxiliary Blower Motor Medium 1/2 Speed Control

C1

RED

2620

Auxiliary Blower Motor Speed Control

C2

ORN

1052

Auxiliary Blower Motor High Speed Relay Control

Blower Motor Resistor Assembly


Object Number: 73146 Size: CH

Connector Part Information
    • 1205-2854
    • 7-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

63

Medium 1 Blower Motor Control

B

YEL

60

Low Blower Motor Control

C

PPL

73

Medium 3 Blower Motor Control

D

LT BLU

72

Medium 2 Blower Motor Control

E

BLK

150

Ground

F

ORN

52

High Blower Motor Control

G

ORN

40

Battery Positive Voltage

Blower Motor Resistor Assembly - Auxiliary


Object Number: 697053 Size: CH

Connector Part Information
    • 12129565
    • 4-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

YEL

1176

Auxiliary Blower Motor Low Speed Control

B

--

--

Not Used

C

LT BLU

1072

Auxiliary Blower Motor Medium Speed Control

D

WHT

2613

Auxiliary Blower Motor Medium 1 and 2 Speed Control

Evaporative Temperature Sensor


Object Number: 280768 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

WHT

2622

5-Volt Reference

B

BLK

552

Low Reference

HVAC Control Module - Auxiliary Connector C1


Object Number: 73152 Size: CH

Connector Part Information
    • 12084944
    • 16-Way F Metri-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

PPL

9970

Blower Motor Switch Supply Voltage - Auxiliary

A2

PPL

9970

Blower Motor Switch Supply Voltage - Auxiliary

A3-A6

--

--

Not Used

A7

GRY

778

Blower Motor Control - Auxiliary

A8

GRY

778

Blower Motor Control - Auxiliary

B1

PPL

9970

Blower Motor Switch Supply Voltage - Auxiliary

B2

BLK

850

Ground

B3

BLK

2614

Air Temperature Door Control - Auxiliary

B4

--

--

Not Used

B5

LT BLU

733

Auxiliary Air Temperature Door Control

B6

GRY

8

Instrument Panel Lamp Supply Voltage - 1

B7

BRN

641

Ignition 3 Voltage

B8

GRY

778

Blower Motor Control - Auxiliary

HVAC Control Module - Auxiliary Connector C2


Object Number: 232132 Size: CH

Connector Part Information
    • 12020813
    • 5-Way F Micro-Pack 630 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1052

Auxiliary Blower Motor High Speed Relay Control

B

LT BLU

1072

Auxiliary Blower Motor Medium Speed Control

C

YEL

1176

Auxiliary Blower Motor Low Speed Control

D

--

--

Not Used

E

PPL

9970

Blower Motor Switch Supply Voltage - Auxiliary

HVAC Control Module Connector C1


Object Number: 73152 Size: CH

Connector Part Information
    • 12084944
    • 16-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

ORN

640

Battery Positive Voltage

A2

BRN

241

Ignition 3 Voltage

A3

GRY/BLK

308

Park Lamp Switch On Input/Park Lamp Relay Control

A4

WHT

193

Rear Defog Relay Control

A5

TAN/BLK

2274

Recirculation Door Control Circuit

A6

DK GRN/

WHT

762

A/C Request Signal

A7

TAN

2273

Mode Door Control Circuit

A8

DK BLU

1199

Left Air Temperature Door Control

B1

BLK

150

Ground

B2

BLK

552

Low Reference

B3

WHT

2622

5-Volt Reference

B4

GRY

8

Instrument Panel Lamp Supply Voltage - 1

B5

DK GRN

71

OFF Blower Motor Control

B6

WHT/BLK

1236

Right Air Temperature Door Control

B7

RED

2615

Mode Door Control - Auxiliary

B8

LT BLU

733

Auxiliary Air Temperature Door Control

HVAC Control Module Connector C2


Object Number: 62469 Size: CH

Connector Part Information
    • 1206-4998
    • 8-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

71

OFF Blower Motor Control

B

BRN

41

Ignition 3 Voltage

C

ORN

52

High Blower Motor Control

D

--

--

Not Used

E

PPL

73

Medium 3 Blower Motor Control

F

LT BLU

72

Medium 2 Blower Motor Control

G

TAN

63

Medium 1 Blower Motor Control

H

YEL

60

Low Blower Motor Control

Rear Window Wiper/Washer and Multifunction Switch Connector C2, Blower Switch - Auxiliary


Object Number: 73232 Size: CH

Connector Part Information
    • 1216-2455
    • 8-Way F Metri-Pack 280 Series (CLR)

Pin

Wire Color

Circuit No.

Function

A

YEL

1176

Auxiliary Blower Motor Low Speed Control

B

ORN

1052

Auxiliary Blower Motor High Speed Relay Control

C

LT BLU

1072

Auxiliary Blower Motor Medium Speed Control

D

--

--

Not Used

E

BLK

1450

Ground

F

--

--

Not Used

G

ORN

1923

Auxiliary Blower Motor Speed Control

H

GRY

8

Instrument Panel Lamp Supply Voltage - 1

Mode Actuator


Object Number: 280764 Size: CH

Connector Part Information
    • 1206-4993
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

150

Ground

8

TAN

2273

Mode Door Control

9

--

--

Not Used

10

BRN

241

Ignition 3 Voltage

Mode Actuator - Auxiliary


Object Number: 280764 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5

BRN

641

Ignition 3 Voltage

6

RED

2615

Auxiliary Mode Door Control

7

BLK

850

Ground

8-10

--

--

Not Used

Rear Video/Audio/HVAC Module - C1


Object Number: 802507 Size: CH

Connector Part Information
    • 12185783
    • 24-Way F Mini Fit (NAT) Molex

Pin

Wire Color

Circuit No.

Function

1-7

--

--

Not Used

8

BLK/WHT

351

Ground

9

--

--

Not Used

10

PPL

493

Rear Seat Audio Enable Signal

11

DK BLU

46

Right Rear Speaker Output (+)

12

LT BLU

115

Right Rear Speaker Output (-)

13

GRY/BLK

308

Step Dim Signal

14

BRN

199

Left Rear Speaker Output (+)

15

YEL

116

Left Rear Speaker Output (-)

16

DK BLU

46

Left Rear Speaker Output (+)

17

LT BLU

115

Left Rear Speaker Output (-)

18

BRN

199

Left Rear Speaker Output (+)

19

YEL

116

Left Rear Speaker Output (-)

20

--

--

Not Used

21

GRY

8

Instrument Panel Lamp Supply Voltage - 1

22

BLK

2614

Auxiliary Air Temperature Door Control

23

LT BLU

733

Auxiliary Air Temperature Door Position Signal

24

--

--

Not Used

Rear Video/Audio/HVAC Module - C2


Object Number: 802508 Size: CH

Connector Part Information
    • 15405008
    • 5-Way F (BLK) Molex

Pin

Wire Color

Circuit No.

Function

1

ORN

1052

Auxiliary Blower Motor High Speed Relay Control

2

LT BLU

1072

Auxiliary Blower Motor Medium Speed Control

3

YEL

1176

Auxiliary Blower Motor Low Speed Control

4

ORN

1923

Auxiliary HVAC Switch Supply Voltage

5

--

--

Not Used

Rear Video/Audio/HVAC Module - C3


Object Number: 802509 Size: CH

Connector Part Information
    • 15380807
    • 12-Way F Mini-Fit Jr (NAT) Molex

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BLK/WHT

9372

DVD Audio Signal (-)

3

DK GRN/WHT

9368

DVD Audio Right Signal (+)

4

BRN/WHT

9367

DVD Audio Left Signal (+)

5

RED

9352

DVD Infrared Command Serial Data Signal

6

PPL/WHT

9724

Display Dimming Signal

7

--

--

Not Used

8

TAN

9351

Video Signal (-)

9

PPL

9350

Video Signal (+)

10

BLK

9150

Rear Video/Audio/HVAC Module Ground

11

RED/WHT

9136

Rear Video/Audio/HVAC Module Supply Voltage

12

YEL

710

Class 2 Serial Data

Recirculation Actuator


Object Number: 280764 Size: CH

Connector Part Information
    • 1206-4993
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5

BRN

241

Ignition 3 Voltage

6

TAN/BLK

2274

Recirculation Door Control

7

BLK

150

Ground

8-10

--

--

Not Used