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: 535935  Size: CH

Connector Part Information

    • 12059612
    • 3-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

--

Ground

B

PPL

--

Battery Positive Voltage

C

BRN

--

Blower Motor 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: 726395  Size: CH

Connector Part Information

    • 15356937
    • 32-Way M (BLK) Doc N Loc Series RW

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

DK GRN

44

Instrument Panel Lamps Dimmer Switch Signal

A3

PPL

1783

Twilight Sentinel Delay Signal

A4

YEL

61

Low Reference

A5

WHT

278

Ambient Light sensor Signal

A6

LT BLU/

BLK

1688

5 Volt Reference

A7

--

--

Not Used

A8

BRN

141

Ignition 3 Voltage

A9

BLK/WHT

351

Ground

A10

ORN

1140

Battery Positive Voltage

A11-A12

--

--

Not Used

A13

GRY/BLK

754

Blower Motor Speed Control

A14

PPL

1807

Class 2 Serial Data (Primary)

A15

PPL

1807

Class 2 Serial Data (Primary)

A16

--

--

Not Used

B1-B2

--

--

Not Used

B3

LT BLU

1788

Traction Control Switch Signal

B4

--

--

Not Used

B5

LT GRN

80

Key In Ignition Switch Signal

B6

PNK/BLK

1597

Interior Lamp Switch On Signal

B7

YEL

1791

Air Temperature Valve Motor Low Reference

B8

DK GRN

1614

Recirculation Door Motor Control

B9

YEL

1318

Mode Control Door

B10

DK BLU

1199

Air Temperature Door Control

B11-B14

--

--

Not Used

B15

YEL

1491

Backlight Lamps Control

B16

BLK

350

Ground

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 Control Door

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

Recirculation Door Motor Control

9

--

--

Not Used

10

BRN

141

Ignition 3 Voltage