GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Air Temperature Sensor-Inside
Table 4: Air Temperature Actuator-Left
Table 5: Air Temperature Actuator-Right
Table 6: Ambient Air Temperature Sensor
Table 7: Blower Motor
Table 8: Blower Motor Control Processor
Table 9: HVAC Control Module
Table 10: Sunload Sensor
Table 11: Vacuum Control Assembly

A/C Compressor Clutch


Object Number: 684852  Size: CH

Connector Part Information

    • 12162017
    • 2-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Compressor Clutch Supply Voltage

B

BLK

150

Ground

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

407

Low Reference

B

GRY

474

5 Volt Reference

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Sensor-Inside


Object Number: 82383  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

DK GRN

734

Inside Air Temperature Sensor Signal

B

GRY/BLK

1798

Ground

Air Temperature Actuator-Left


Object Number: 281207  Size: CH

Connector Part Information

    • 12040953
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5

BRN

41

Ignition 3 Voltage

6

DK BLU

1199

Air Temperature Door Control

7

GRY/BLK

1798

Ground

8

--

--

Not Used

9

LT BLU

733

Air Temperature Door Position Signal

10

YEL

1791

5 Volt Reference

Air Temperature Actuator-Right


Object Number: 281207  Size: CH

Connector Part Information

    • 12040953
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5

BRN

41

Ignition 3 Voltage

6

WHT/BLK

1236

Air Temperature Door Control-Auxiliary

7

GRY/BLK

1798

Ground

8

--

--

Not Used

9

DK BLU

1646

Air Temperature Door Position Signal-Auxiliary

10

YEL

1791

5 Volt Reference

Ambient Air Temperature Sensor


Object Number: 635009  Size: CH

Connector Part Information

    • 12052635
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

735

Outside Air Temperature Sensor Signal

B

GRY/BLK

1798

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

PPL

--

Blower Motor Supply Voltage

B

BLK

--

Blower Motor Speed Control

Blower Motor Control Processor


Object Number: 697053  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

RED

1342

Battery Positive Voltage

C

TAN

63

Blower Motor Speed Control

D

--

--

Not Used

HVAC Control Module


Object Number: 524759  Size: CH

Connector Part Information

    • 12045470
    • 32-Way F Micro-Pack 100 Series (NAT)

Pin

Wire Color

Circuit No.

Function

C1

BLK

150

Ground

C2

LT BLU/BLK

590

Driver Solar Sensor Signal

C3

DK BLU

1646

Air Temperature Door Position Signal-Auxiliary

C4

--

--

Not Used

C5

BRN

41

Ignition 3 Voltage

C6

WHT/BLK

1236

Air Temperature Door Control-Auxiliary

C7

DK BLU

1199

Air Temperature Door Control

C8

LT BLU

733

Air Temperature Door Position Signal

C9

--

--

Not Used

C10

YEL

1791

5 Volt Reference

C11

TAN

63

Blower Motor Speed Control

C12

ORN

540

Battery Positive Voltage

C13-C15

--

--

Not Used

C16

YEL

390

Instrument Panel Lamp Supply Voltage - 3

D1

GRY/BLK

1798

Ground

D2

DK GRN

734

Inside Air Temperature Sensor Signal

D3

LT GRN/BLK

735

Outside Air Temperature Sensor Signal

D4-D7

--

--

Not Used

D8

DK GRN

1394

Recirculation Mode Valve Solenoid Control

D9

LT GRN

66

Mix-Blend Mode Valve Solenoid Control

D10

PPL

1397

Lower Mode Valve Solenoid Control

D11

LT GRN

1395

Upper Mode Valve Solenoid Control

D12

WHT

1038

HVAC Class 2 Serial Data

D13

PNK

1396

Defrost Mode Valve Solenoid Control

D14-D16

--

--

Not Used

Sunload Sensor


Object Number: 154336  Size: CH

Connector Part Information

    • 12048457
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

590

Driver Solar Sensor Signal

B

GRY/BLK

1798

Ground

Vacuum Control 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

LT GRN

1395

Upper Mode Valve Solenoid Control

2

PPL

1397

Lower Mode Valve Solenoid Control

3

LT GRN

66

Mix-Blend Mode Valve Solenoid Control

4

DK GRN

1394

Recirculation Mode Valve Solenoid Control

5

PNK

1396

Defrost Mode Valve Solenoid Control

6

BRN

41

Ignition 3 Voltage