GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Low Temperature Sensor
Table 3: A/C Refrigerant Pressure Sensor
Table 4: Air Temperature Actuator -- Left
Table 5: Air Temperature Actuator -- Right
Table 6: Air Temperature Sensor -- Inside
Table 7: Air Temperature Sensor -- Lower Left
Table 8: Air Temperature Sensor -- Lower Right
Table 9: Air Temperature Sensor -- Upper Left
Table 10: Air Temperature Sensor -- Upper Right
Table 11: Ambient Air Temperature Sensor
Table 12: Blower Motor -- Auxiliary
Table 13: Blower Motor Control Processor
Table 14: Blower Motor Resistor Assembly -- Auxiliary
Table 15: HVAC Control Assembly -- Auxiliary
Table 16: Mode Actuator
Table 17: Mode Actuator -- Auxiliary
Table 18: Recirculation Actuator
Table 19: Sunload Sensor -- Left
Table 20: Sunload Sensor -- Right

A/C Compressor Clutch


Object Number: 35437  Size: CH

Connector Part Information

    • 12186685
    • 2 Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Compressor Clutch Supply Voltage

B

BLK/WHT

451

Ground

A/C Refrigerant Low Temperature Sensor


Object Number: 130692  Size: CH

Connector Part Information

    • 12092512
    • 2 Way F (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Low Reference

B

GRY

731

A/C Refrigerant Low Temperature Sensor Signal

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 12078090
    • 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: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6 Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5

BRN

141

Ignition 3 Voltage

6

DK BLU

1199

Air Temperature Door Control

7

YEL

1791

Low Reference

8

--

--

Not Used

9

LT BLU

733

Air Temperature Door Position Signal

10

GRY

705

5 Volt Reference

Air Temperature Actuator -- Right


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

141

Ignition 3 Voltage

6

WHT/BLK

1236

Air Temperature Door Control - Auxiliary

7

YEL

1791

Low Reference

8

--

--

Not Used

9

DK BLU

1646

Air Temperature Door Control - Auxiliary

10

GRY

705

5 Volt Reference

Air Temperature Sensor -- Inside


Object Number: 130637  Size: CH

Connector Part Information

    • 12064760
    • 4 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

734

Inside Air Temperature Sensor Signal

B

BRN

141

Ignition 3 Voltage

C

BLK

450

Ground

D

YEL

61

Low Reference

Air Temperature Sensor -- Lower Left


Object Number: 82383  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

518

Lower Left Air Temperature Sensor Signal

B

YEL

61

Low Reference

Air Temperature Sensor -- Lower Right


Object Number: 82383  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

520

Lower Right Air Temperature Sensor Signal

B

YEL/BLK

61

Low Reference

Air Temperature Sensor -- Upper Left


Object Number: 82383  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

516

Upper Left Air Temperature Sensor Signal

B

YEL

61

Low Reference

Air Temperature Sensor -- Upper Right


Object Number: 82383  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

TAN

517

Upper Right Air Temperature Sensor Signal

B

YEL

61

Low Reference

Ambient Air Temperature Sensor


Object Number: 646176  Size: CH

Connector Part Information

    • 12162192
    • 2 Way F 150.2 SER (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/

BLK

735

Outside Air Temperature Sensor Signal

B

YEL

61

Low Reference

Blower Motor -- Auxiliary


Object Number: 130724  Size: CH

Connector Part Information

    • 12064869
    • 2 Way F Metri-Pack 150 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A

YEL

1172

Auxiliary Blower Motor Supply Voltage

B

ORN

1052

Auxiliary Blower Motor Supply Voltage

Blower Motor Control Processor


Object Number: 697053  Size: CH

Connector Part Information

    • 12129565
    • 4 Way F Metri-Pack 280 Series Sealed (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

450

Ground (LH Drive)

BLK

350

Ground (RH Drive)

B

ORN

1340

Battery Positive Voltage

C

GRY/BLK

754

Blower Speed Control

D

--

--

Not Used

Blower Motor Resistor Assembly -- Auxiliary


Object Number: 73229  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT BLU

73

Medium 3 Blower Motor Control

B

--

--

Not Used

C

ORN

1052

Auxiliary Blower Motor Supply Voltage

D

WHT

72

Medium 1 Blower Motor Control

HVAC Control Assembly -- Auxiliary


Object Number: 62464  Size: CH

Connector Part Information

    • 12064769
    • 10 Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

BLK

350

Ground

B

BRN

141

Ignition 3 Voltage

C

--

--

Not Used

D

YEL

1491

Backlight Lamps Control

E

BLK

350

Ground

F

TAN

63

Medium 1Blower Motor Control

G

LT BLU

72

Medium 2 Blower Motor Control

H

PPL

73

Medium 3Blower Motor Control

J

ORN

1052

Auxiliary Motor Supply Voltage

K

PNK

1593

Diverter Motor Supply Voltage

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

BRN

141

Ignition 3 Voltage

6

YEL

1318

Mode Door Control

7

YEL

1791

Low Reference

8

--

--

Not Used

9

YEL/BLK

1814

Lower Mode Door Position Sensor Signal

10

GRY

705

5 Volt Reference

Mode Actuator -- Auxiliary


Object Number: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6 Way F Micro-Pack 100 Series (NAT)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

350

Ground

8

ORN

1593

Diverter Motor Supply Voltage

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

BRN

141

Ignition 3 Voltage

6

DK GRN

1614

Recirculation Door Control

7

YEL

1791

Low Reference

8

--

--

Not Used

9

PPL

1838

Recirculation Door Position Signal

10

GRY

705

5 Volt Reference

Sunload Sensor -- Left


Object Number: 258301  Size: CH

Connector Part Information

    • 12059254
    • 2 Way M Metri-Pack 150 Series (LT GRN)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/

BLK

590

Driver Sunload Sensor Signal

B

YEL

61

Low Reference

Sunload Sensor -- Right


Object Number: 258301  Size: CH

Connector Part Information

    • 12059254
    • 2 Way M Metri-Pack 150 Series (LT GRN)

Pin

Wire Color

Circuit No.

Function

A

GRY

1548

Passenger Sunload Sensor Signal

B

YEL

61

Low Reference