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 Actuator
Table 4: Blower Motor
Table 5: Blower Motor Control Processor
Table 6: HVAC Control Module
Table 7: Mode Actuator
Table 8: Recirculation Actuator

A/C Compressor Clutch


Object Number: 62440  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Compressor Clutch Supply Voltage

B

BLK

1150

Ground

A/C Refrigerant Pressure Sensor


Object Number: 219804  Size: CH

Connector Part Information

    • 12110192
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

808

Low Reference

B

GRY

474

5 Volt Reference

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator


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

YEL

1791

Low Reference

8

DK BLU

1199

Air Temperature Door Control

9

--

--

Not Used

10

BRN

141

Ignition 3 Voltage

Blower Motor


Object Number: 608947  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

450

Speed Control (Ground)

B

PPL

1340

Blower Positive Voltage

C

BRN

754

Blower Motor Flange Ground (Speed Control)

Blower Motor Control Processor


Object Number: 73229  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

450

Ground

B

ORN

1340

Battery Positive Voltage

C

GRY/BLK

754

Blower Motor Speed Control

D

--

--

Not Used

HVAC Control Module


Object Number: 493173  Size: CH

Connector Part Information

    • 15317985
    • 32 Way M (DK GRY)
    • Note: Connector has A pins on one side and B pins on the other

Pin

Wire Color

Circuit No.

Function

A1

FW

1807

Class 2 Serial Data (Primary)

A2

FW

1807

Class 2 Serial Data (Primary)

A3

--

--

Not Used

A4

FW

44

Instrument Panel Lamps Dimmer Switch Signal

A5

FW

278

Ambient Light Sensor Signal

A6-A7

--

--

Not Used

A8

FW

141

Ignition 3 Voltage

A9

FW

192

Front Fog Lamp Switch Signal

A10

--

--

Not Used

A11

FW

1597

Interior Lamp Switch On Signal

A12

FW

1199

Air Temperature Door Control

A13

--

--

Not Used

A14

FW

1140

Battery Positive Voltage

A15

--

--

Not Used

A16

FW

1595

Key Cylinder Lamp Control

B1

FW

754

Blower Speed Control

B2

FW

1491

Backlight Lamps Control

B3

FW

450

Ground

B4

FW

1783

Twilight Sentinal Delay Signal

B5

FW

1688

5 Volt Reference

B6

FW

61

Low Reference

B7-B8

--

--

Not Used

B9

FW

1788

Traction Control Switch Signal

B10

FW

1576

Trunk Release Switch Signal

B11

FW

80

Key in Ignition Switch Signal

B12

--

--

Not Used

B13

FW

1318

Mode Door Control

B14

FW

351

Ground

B15

FW

1791

Low Reference

B16

FW

1614

Recirculation Door Control

Mode Actuator


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

YEL

1791

Low Reference

8

YEL

1318

Mode Door Control

9

--

--

Not Used

10

BRN

141

Ignition 3 Voltage

Recirculation Actuator


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

YEL

1791

Low Reference

8

DK GRN

1614

Recirulation Door Control

9

--

--

Not Used

10

BRN

141

Ignition 3 Voltage