GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Century 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 HVAC Connector End Views
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Ambient Air Temperature Sensor-Outside
Table 4: Blower Motor Control Processor
Table 5: Air Temperature Actuator-Left
Table 6: Air Temperature Actuator-Right
Table 7: HVAC Control Module
Table 8: Air Temperature Sensor-Inside
Table 9: Sunload Sensor

A/C Compressor Clutch


Object Number: 280759 Size: CH

Connector Part Information
    • 12162017
    • 2-Way F Metric-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
    • 12110192
    • 3-Way F Metric-Pack 150 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

2751

Low Reference

B

GRY

474

5 Volt Reference

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Ambient Air Temperature Sensor-Outside


Object Number: 35437 Size: CH

Connector Part Information
    • 12052641
    • 2-Way F Metric-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

735

Ambient Air Temperature Sensor Signal

B

YEL

61

Low Reference

Blower Motor Control Processor


Object Number: 73229 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

ORN

40

Battery Positive Voltage

C

GRY/BLK

754

Blower Motor Speed Control

D

--

--

Not Used

Air Temperature Actuator-Left


Object Number: 280764 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5

BRN

41

Ignition 3 Voltage

6

DK BLU

1199

Left Air Temperature Door Control

7

YEL

61

Low Reference

8

--

--

Not Used

9

BRN/WHT

1218

Left Air Temperature Door Position

10

PNK/BLK

1217

5-Volt Reference

Air Temperature Actuator-Right


Object Number: 280764 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5

BRN

41

Ignition 3 Voltage

6

WHT/BLU

1236

Right Air Temperature Door Control

7

YEL

61

Low Reference

8

--

--

Not Used

9

YEL

1791

Right Air Temperature Door Position

10

PNK/BLK

1217

5-Volt Reference

HVAC Control Module


Object Number: 524759 Size: CH

Connector Part Information
    • 12045470
    • 32-Way F Metric-Pack 100 Series (NAT)

Pin

Wire Color

Circuit No.

Function

C1

BLK

1450

Ground

C2

LT BLU/BLK

590

Driver Solar Sensor Signal

C3

YEL

1791

Right Air Temperature Door Position

C4

--

--

Not Used

C5

BRN

41

Ignition 3 Voltage

C6

WHT/BLK

1236

Right Air Temperature Door Control

C7

DK BLU

1199

Left Air Temperature Door Control

C8

BRN/WHT

1218

Left Air Temperature Door Position

C9

--

--

Not Used

C10

PNK/BLK

1217

5-Volt Reference

C11

GRY/BLK

754

Blower Motor Speed Control

C12

ORN

640

Battery Positive Voltage

C13-C15

--

--

Not Used

C16

GRY

8

Instrument Panel Lamp Supply Voltage - 1

D1

YEL

61

Low Reference

D2

DK GRN

734

Inside Air Temperature Sensor Signal

D3

LT GRN/BLK

735

Ambient Air Temperature Sensor Signal

D4-D7

--

--

Not Used

D8

TAN

363

Recirculation Mode Valve Solenoid Control

D9

PPL

361

Mix-Blend Mode Valve Solenoid Control

D10

RED

362

Lower Mode Valve Solenoid Control

D11

LT GRN/BLK

366

Defrost Mode Valve Solenoid Control

D12

WHT

1038

HVAC Class 2 Serial Data

D13

LT BLU

706

Upper Mode Valve Solenoid Control

D14

--

--

Not Used

D15

WHT

193

Rear Defog Relay Control

D16

--

--

Not Used

Air Temperature Sensor-Inside


Object Number: 35455 Size: CH

Connector Part Information
    • 15304747
    • 2-Way M Metric-Pack 150 Series (RED)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

734

Inside Air Temperature Sensor Signal

B

BLK

61

Low Reference

Sunload Sensor


Object Number: 35441 Size: CH

Connector Part Information
    • 12047663
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

590

Driver Solar Sensor Signal

B

YEL

61

Low Reference