GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 DeVille 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 HVAC Connector End Views
Table 1: A/C Compressor Clutch
Table 2: A/C Compressor Clutch (V4U)
Table 3: A/C Refrigerant Low Temperature Sensor
Table 4: A/C Refrigerant Pressure Sensor
Table 5: Air Temperature Actuator - Left
Table 6: Air Temperature Actuator Assembly
Table 7: Air Temperature Sensor - Auxiliary
Table 8: Air Temperature Sensor - Inside
Table 9: Air Temperature Sensor - Lower Left
Table 10: Air Temperature Sensor - Lower Right
Table 11: Air Temperature Sensor - Upper Left
Table 12: Air Temperature Sensor - Upper Right
Table 13: Ambient Air Temperature Sensor
Table 14: Blower Motor
Table 15: Blower Motor - Auxiliary
Table 16: Blower Motor Control Processor
Table 17: Blower Motor Resistor Assembly - Auxiliary
Table 18: HVAC Control Module - Auxiliary
Table 19: Mode Actuator
Table 20: Mode Actuator - Auxiliary
Table 21: Recirculation Actuator

A/C Compressor Clutch


Object Number: 35437 Size: CH

Connector Part Information
    • 12186685
    • 2-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Compressor Clutch Supply Voltage

B

BLK/WHT

1050

Ground

A/C Compressor Clutch (V4U)


Object Number: 280759 Size: CH

Connector Part Information
    • 12162017
    • 2-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1550

Ground

B

DK GRN

59

A/C Compressor Clutch Supply Voltage

A/C Refrigerant Low Temperature Sensor


Object Number: 130692 Size: CH

Connector Part Information
    • 12092512
    • 2-Way F (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

A/C Refrigerant Low Temperature Sensor Signal

B

GRY

731

Low Reference

A/C Refrigerant Pressure Sensor


Object Number: 258299 Size: CH

Connector Part Information
    • 12065286
    • 3-Way F Metri Pack 150 Series (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

YEL

1791

Left Air Temperature Door Control A

2

DK BLU

1199

Left Air Temperature Door Control B

3-6

--

--

Not Used

Air Temperature Actuator Assembly


Object Number: 40427 Size: CH

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

Pin

Wire Color

Circuit No.

Function

1

ORN

2775

Auxiliary Air Temperature Door Control B

2

TAN

2776

Auxiliary Air Temperature Door Control A

3-4

--

--

Not Used

5

GRY/BLK

2778

Right Air Temperature Door Control  A

6

WHT/BLK

1236

Right Air Temperature Door Control  B

Air Temperature Sensor - Auxiliary


Object Number: 82383 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

RED

404

Auxiliary Air Temperature Sensor Signal

B

YEL

61

Low Reference

Air Temperature Sensor - Inside


Object Number: 39661 Size: CH

Connector Part Information
    • 12047786
    • 4-Way M Metri-Pack 150 (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

734

Inside Air Temperature Sensor Signal

B

BRN

141

Ignition 3 Voltage

C

BLK

9999

Inside Air Temperature Sensor Assembly Control

D

YEL

61

Low Reference

Air Temperature Sensor - Lower Left


Object Number: 82383 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BLK

518

Lower Left Air Temperature Sensor Signal

B

YEL/BLK

61

Low Reference

Air Temperature Sensor - Lower Right


Object Number: 82383 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

520

Lower Right Air Temperature Sensor Signal

B

YEL/BLK

61

Low Reference

Air Temperature Sensor - Upper Left


Object Number: 82383 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BLK

516

Upper Left Air Temperature Sensor Signal

B

YEL

61

Low Reference

Air Temperature Sensor - Upper Right


Object Number: 82383 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

TAN

517

Upper Right Air Temperature Sensor Signal

B

YEL

61

Low Reference

Ambient Air Temperature Sensor


Object Number: 232831 Size: CH

Connector Part Information
    • 12162195
    • 2-Way F Metri-Pack 150.2 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

735

Ambient Air Temperature Sensor Signal

B

YEL

61

Low Reference

Blower Motor


Object Number: 333029 Size: CH

Connector Part Information
    • 12092311
    • 3-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

--

Blower Speed Control Output

B

PPL

--

Blower Speed Control Ground

C

BARE

--

Blower Motor Flange Ground

Blower Motor - Auxiliary


Object Number: 130724 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

ORN

1440

Battery Positive Voltage

B

BLK

1052

High Blower Motor Control

Blower Motor Control Processor


Object Number: 73229 Size: CH

Connector Part Information
    • 12129566
    • 4-Way F Metri-Pack 280 Series, Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

450

Ground

B

RED

1642

Battery Positive Voltage

C

GRY/BLK

754

Blower Motor Speed Control

D

--

--

Not Used

Blower Motor Resistor Assembly - Auxiliary


Object Number: 73229 Size: CH

Connector Part Information
    • 12129566
    • 4-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

72

Medium  1 Blower Motor Control

B

PPL

73

Medium 2 Blower Motor Control

C

BLK

1052

High Blower Motor Control" Al

D

TAN

63

Low Blower Motor Control

HVAC Control Module - Auxiliary


Object Number: 73152 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A1

BLK

450

Ground (DTS)

A1

BLK

350

Ground (DeVille, DHS)

A2

PPL

1807

Class 2 Serial Data

A3

GRY

2502

Auxiliary Mode Door Control

A4

--

--

Not Used

A5

BLK

450

Ground (DTS)

A5

BLK

350

Ground (DeVille/DHS)

A6

YEL

1491

Backlight Lamps Control

A7

LT BLU

72

Medium  1 Blower Motor Control

A8

TAN

63

Low Blower Motor Control

B1

RED

2503

Low Reference

B2 - B3

--

--

Not Used

B4

PNK

1593

Auxiliary Mode Actuator Supply Voltage

B5

BRN

41

Ignition 3 Voltage

B6

ORN

2840

Battery Positive Voltage

B7

ORN

1052

High Blower Motor Control

B8

PPL

73

Medium  2 Blower Motor Control

Mode Actuator


Object Number: 40427 Size: CH

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

Pin

Wire Color

Circuit No.

Function

1

YEL/BLK

1814

Mode Door Control A

2

YEL

1318

Mode Door Control

3-6

--

--

Not Used

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

5-6

--

--

Not Used

7

GRY

2503

Low Reference

8

PNK

1593

Auxiliary Mode Actuator Supply Voltage

9

--

--

Not Used

10

LT GRN

2502

Auxiliary Mode Door Control

Recirculation Actuator


Object Number: 40427 Size: CH

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

Pin

Wire Color

Circuit No.

Function

1

PPL

1838

Recirculation Door Control A

2

DK GRN

1614

Recirculation Door Control B

3-6

--

--

Not Used