GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Clutch
Table 2: A/C Pressure Sensor
Table 3: Air Inlet Actuator
Table 4: Ambient Air Temperature Sensor
Table 5: Blower Control Module
Table 6: Data Link Connector (DLC)
Table 7: Driver Air Mix Actuator
Table 8: Heater and A/C Control
Table 9: Heater and A/C Programmer C1
Table 10: Heater and A/C Programmer C2
Table 11: Heater Temperature Sensor, Left Side
Table 12: Left A/C Temperature Sensor
Table 13: Right A/C Temperature Sensor
Table 14: Left Sun Load Temperature Sensor
Table 15: Mode Actuator
Table 16: Passenger Air Mix Actuator
Table 17: Passenger Climate Control
Table 18: Heater Temperature Sensor, Right Side
Table 19: Inside Air Temperature Sensor
Table 20: Right Sun Load Temperature Sensor

A/C Clutch


Object Number: 280759  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Clutch Solenoid Feed

B

BLK

50

Ground

A/C Pressure Sensor


Object Number: 62485  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

452

Sensor Return

B

GRY

474

5 Volt Reference

C

RED/BLK

380

A/C Pressure Sensor Signal

Air Inlet Actuator


Object Number: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6-Way Fuse Block

Pin

Wire Color

Circuit No.

Function

5

BRN

41

Fused Output (Ignition)

6

BRN/WHT

1218

Mode Valve Motor Feed - Upper

7

YEL

1791

Air Temperature Valve Motor Return

8

--

--

Not Used

9

RED

708

Mode Valve Position Sensor Signal-Upper

10

GRY

705

5 Volt Reference

Ambient Air Temperature Sensor


Object Number: 232831  Size: CH

Connector Part Information

    • 12162192
    • 2 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

735

Outside Ambient Temperature Sensor Signal

B

YEL

61

Outside Ambient Temperature Sensor Signal

Blower Control Module


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

RED

242

Fused Output (Battery)

C

GRY/BLK

754

Blower Speed Control (Signal)

D

--

--

Not Used

Data Link Connector (DLC)


Object Number: 68793  Size: CH

Connector Part Information

    • 12110250
    • 16 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

PPL

1807

Class 2 Serial Data Line

3

--

--

Not Used

4

BLK

350

Ground

5

BLK/WHT

351

Ground

6-7

--

--

Not Used

8

BLK/WHT

1455

Keyless Entry Program Enable Signal

9-13

--

--

Not Used

14

DK GRN

835

E and C Serial Data Line

15

--

--

Not Used

16

ORN

1140

Fused Output (Battery)

Driver Air Mix Actuator


Object Number: 280764  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

5

BRN

41

Fused Output (Ignition)

6

DK BLU

1199

Air Temperature Valve Motor Feed

7

YEL

1791

Air Temperature Valve Motor Return

8

--

--

Not Used

9

LT BLU

733

Air Temperature Valve Position Sensor Signal

10

GRY

705

5 Volt Reference

Heater and A/C Control


Object Number: 73152  Size: CH

Connector Part Information

    • 12110259
    • 16 Way F Micro-Pack 100 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A1-A6

--

--

Not Used

A7

BRN

341

Fused Output - IGN

A8

BLK/WHT

351

Ground

B1

LT BLU

1880

HVAC Control Signal

B2

PPL

1881

HVAC Control Signal

B3

GRY

8

IP Lamp Feed

B4-B8

--

--

Not Used

Heater and A/C Programmer C1


Object Number: 130690  Size: CH

Connector Part Information

    • 12110206
    • 24 Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

A1

GRY

705

5 Volt Reference

A2

DK GRN

892

Coolant Temperature Switch Feed

A3

--

--

Not Used

A4

RED

708

Mode Valve Position Sensor Signal - Upper

A5

LT BLU

733

Air Temperature Valve Position Sensor Signal

A6

DK BLU

1646

Air Temperature Valve Position Sensor Signal - Passenger

A7

YEL

1791

Air Temperature Valve Motor Return

A8

YEL

1318

Mode Valve Motor Feed - Lower

A9

--

--

Not Used

A10

BRN/WHT

1218

Mode Valve Motor Feed - Upper

A11

DK BLU

1199

Air Temperature Valve Motor Feed

A12

WHT/BLK

1236

Air Temperature Valve Motor Feed - Passenger

B1

LT GRN/BLK

735

Outside Ambient Temperature Sensor Signal

B2

LT BLU/BLK

590

Dirver Solar Sensor Signal

B3

GRY

1548

Passenger Solar Sensor Signal

B4

DK GRN

734

Inside Temperature Sensor Signal

B5

DK BLU/ WHT

831

HVAC Control Assembly Signal - Passenger

B6

BLK

516

Air Temperature Sensor Signal - A/C Left

B7

TAN

517

Air Temperature Sensor Signal - A/C Right

B8

YEL

61

Outside Ambient Temperature Sensor Return

B9

BLK

518

Air Temperature Sensor Signal - Left Heater

B10-B12

--

--

Not Used

Heater and A/C Programmer C2


Object Number: 73157  Size: CH

Connector Part Information

    • 12110207
    • 32 Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

C1

ORN

840

Fused Output - Battery

C2

BRN

341

Fused Output - IGN

C3

--

--

Not Used

C4

DK GRN

835

E and C Serial Data Line

C5-C6

--

--

Not Used

C7

PPL

1807

Class 2 Serial Data Line

C8

PPL

1807

Class 2 Serial Data Line

C9-C11

--

--

Not Used

C12

LT BLU

1880

HVAC Control Signal - Driver

C13

PPL

1881

HVAC Control Signal - Clock- Driver

C14

--

--

Not Used

C15

TAN

1812

HVAC Control Return - Passenger

C16

--

--

Not Used

D1-D2

--

--

Not Used

D3

BLK

520

Air Temperature Sensor Signal - Right Heater

D4-D5

--

--

Not Used

D6

BLK

291

HVAC Control Lamp Feed - Passenger

D7-D10

--

--

Not Used

D11

GRY/BLK

754

Blower Speed Signal - Speed Control

D12-D13

--

--

Not Used

D14

PPL/WHT

724

Vacuum Flourescent Dimming Signal

D15

--

--

Not Used

D16

BLK/WHT

351

Ground

Heater Temperature Sensor, Left Side


Object Number: 82383  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK

518

Heater Temperature Sensor Signal, Left Side

B

YEL

61

Sensor Return

Left A/C Temperature Sensor


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

Air Temperature Sensor Signal-A/C Left

B

YEL

61

Outside Ambient Air Temperature Sensor Return

Right A/C Temperature Sensor


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

Air Temperature Sensor Signal - A/C Right

B

YEL

61

Outside Ambient Air Temperature Sensor Return

Left Sun Load Temperature Sensor


Object Number: 258301  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

LT BLU/ BLK

590

Solar Sensor Signal-Driver

B

YEL

61

Outside Ambient Temperature Sensor Return

Mode Actuator


Object Number: 280764  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

5

BRN

41

Fused Output (Ignition)

6

LT GRN

1318

Mode Valve Motor Feed-Lower

7

YEL

1791

Air Temperature Valve Motor Return

8

--

--

Not Used

9

YEL/BLK

892

Coolant Temperature Switch Feed

10

GRY

705

5 Volt Reference

Passenger Air Mix Actuator


Object Number: 280764  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

5

BRN

41

Fused Output (Ignition)

6

WHT/BLK

1236

Air Temperature Valve Motor Feed-Passenger

7

YEL

1791

Air Temperature Valve Motor Return

8

--

--

Not Used

9

DK BLU

1646

Air Temperature Valve Position Sensor Signal-Passenger

10

GRY

705

5 Volt Reference

Passenger Climate Control


Object Number: 280764  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

5

GRY

8

IP Lamp Feed

6

--

--

Not Used

7

BLK

351

Ground

8

TAN

1812

HVAC Control Return, Passenger

9

BLK

291

HVAC Control Assembly Lamp Feed-Passenger

10

DK BLU/ WHT

831

HVAC Control Signal, Passenger

Heater Temperature Sensor, Right Side


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

520

A/C Air Temperature Sensor Signal, Right Side

B

YEL

61

Outside Ambient Air Temperature Sensor Return

Inside Air Temperature Sensor


Object Number: 35455  Size: CH

Connector Part Information

    • 12059252
    • 2-Way M Metri-Pack 150 Series (RED)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

734

Inside Temperature Sensor Signal

B

YEL

61

Outside Ambient Air Temperature Sensor Return

Right Sun Load Temperature Sensor


Object Number: 258301  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

GRY

1548

Solar Sensor Signal-Passenger

B

YEL

61

Outside Ambient Temperature Sensor Return