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 - Left
Table 4: Air Temperature Actuator - Right - CJ3
Table 5: Blower Motor
Table 6: Blower Motor Resistor Assembly
Table 7: Evaporator Temperature Sensor
Table 8: HVAC Control Module -- C1
Table 9: HVAC Control Module -- C2
Table 10: Mode Actuator
Table 11: Recirculation Actuator

A/C Compressor Clutch


Object Number: 537107  Size: CH

Connector Part Information

    • 15326801
    • 2-Way F GT 150 Series (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Compressor Clutch Supply Voltage

B

BLK

1050

Ground

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 12110192
    • 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

1-2

--

--

Not Used

3

BLK

150

Ground

4

DK BLU

1199

Left Air Temperature Door Control

5

--

--

Not Used

6

BRN

241

Ignition 3 Voltage

Air Temperature Actuator - Right - CJ3


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

BLK

150

Ground

8

WHT/BLK

1236

Right Air Temperature Door Control

9

--

--

Not Used

10

BRN

241

Ignition 3 Voltage

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

RED

-

Blower Motor Supply Voltage

B

BLK

-

Ground

Blower Motor Resistor Assembly


Object Number: 73146  Size: CH

Connector Part Information

    • 12052854
    • 7-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

63

Medium 1 Blower Motor Control

B

YEL

60

Low Blower Motor Control

C

PPL

73

Medium 3 Blower Motor Control

D

LT BLU

72

Medium 2 Blower Motor Control

E

BLK

150

Ground

F

ORN

52

High Blower Motor Control

G

RED

442

Battery Positive Voltage

Evaporator Temperature Sensor


Object Number: 280768  Size: CH

Connector Part Information

    • 12052832
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

2622

Evaporator Temperature Sensor Signal

B

BLK

552

Low Reference

HVAC Control Module -- C1


Object Number: 744295  Size: CH

Connector Part Information

    • 12084994
    • 16-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1

ORN

640

Battery Positive Voltage

A2

BRN

241

Ignition 3 Voltage

A3

BRN

9

Park Lamp Supply Voltage

A4

WHT

193

Rear Defog Relay Control

A5

TAN/BLK

2274

Recirculation Door Control

A6

DK GRN/

WHT

762

A/C Request Signal

A7

TAN

2273

Mode Door Control

A8

DK BLU

1199

Left Air Temperature Door Control

B1

BLK

150

Ground

B2

BLK

552

Low Reference

B3

WHT

2622

Evaporator Temperature Sensor Signal

B4

GRY

8

Instrument Panel Lamp Supply Voltage

B5

DK GRN

71

Off Blower Motor Control

B6

WHT/BLK

1236

Right Air Temperature Door Control

B7-B8

--

--

Not Used

HVAC Control Module -- C2


Object Number: 62469  Size: CH

Connector Part Information

    • 12064998
    • 8-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

71

OFF Blower Motor Control

B

BRN

41

Ignition 3 Voltage

C

ORN

52

High Blower Motor Control

D

--

--

Not Used

E

PPL

73

Medium 3 Blower Motor Control

F

LT BLU

72

Medium 2 Blower Motor Control

G

TAN

63

Medium 1 Blower Motor Control

H

YEL

60

Low Blower Motor 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

BLK

150

Ground

8

TAN

2273

Mode Door Control

9

--

--

Not Used

10

BRN

241

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

BRN

241

Ignition 3 Voltage

6

TAN/BLK

2274

Recirculation Door Control

7

BLK

150

Ground

8-10

--

--

Not Used