GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor - Sirius-D4
Table 3: A/C Refrigerant Pressure Sensor - ITMS-6F
Table 4: A/C Refrigerant Pressure Sensor - MR-140
Table 5: Air Temperature Actuator
Table 6: Air Temperature Sensor Inside
Table 7: Ambient Air Temperature Sensor
Table 8: Blower Motor
Table 9: Blower Motor Control Module
Table 10: Coolant Temperature Sensor
Table 11: HVAC Control - A
Table 12: HVAC Control - B
Table 13: Mode Actuator
Table 14: Recirculation Actuator
Table 15: Sunload Sensor

A/C Compressor Clutch


Object Number: 684852  Size: CH

Connector Part Information

    • PED 12162017
    • 2-Way F Metri-Pack 150 Series, Sealed (MD-GY)

Pin

Wire Color

Circuit Number

Function

A

D-BU

59

A/C Compressor Clutch Supply Voltage

B

BK

1150

Ground

A/C Refrigerant Pressure Sensor - Sirius-D4


Object Number: 258299  Size: CH

Connector Part Information

    • PED 12078090
    • 3-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit Number

Function

A

L-GN

413

Low Reference

B

BN/BK

705

5 Volt Reference

C

L-BU

380

A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor - ITMS-6F


Object Number: 258299  Size: CH

Connector Part Information

    • PED 12078090
    • 3-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit Number

Function

A

L-BU

469

Low Reference

B

D-GN/WH

705

5 Volt Reference

C

L-BU

380

A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor - MR-140


Object Number: 258299  Size: CH

Connector Part Information

    • PED 12078090
    • 3-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit Number

Function

A

YE/BN

632

Low Reference

B

BN/BK

1688

5 Volt Reference

C

L-BU

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator


Object Number: 1467023  Size: CH

Connector Part Information

    • KET MG 610203
    • 7-Way F 118 (PA) Series (BK)

Pin

Wire Color

Circuit Number

Function

1

--

--

Not Used

2

BK

1199

Low Reference

3

BN

1812

5 Volt Reference

4

--

--

Not Used

5

YE

1791

Low Reference

6

YE/BK

1819

Lower Mode Door Position Signal

7

L-BU

1316

Air Temperature Door Control

Air Temperature Sensor Inside


Object Number: 1468403  Size: CH

Connector Part Information

    • KET MG 620074
    • 2-Way M 090 Connector (2.3mm) (WH)

Pin

Wire Color

Circuit Number

Function

1

D-GN

1910

Inside Air Temperature Sensor Signal

2

YE

61

Low Reference

Ambient Air Temperature Sensor


Object Number: 1468380  Size: CH

Connector Part Information

    • KUM PB 625-02027
    • 2-Way F NMWP 04F-B Ass'y (BK)

Pin

Wire Color

Circuit Number

Function

1

WH

61

Low Reference

2

BN/BK

735

Ambient Air Temperature Sensor Signal

Blower Motor


Object Number: 1467007  Size: CH

Connector Part Information

    • KET MG 610043
    • 2-Way F 250 Series (WH)

Pin

Wire Color

Circuit Number

Function

1

PK

743

Blower Motor Speed Signal

2

YE

744

Blower Motor Supply Voltage

Blower Motor Control Module


Object Number: 1468410  Size: CH

Connector Part Information

    • KET MG 610269
    • 6-Way F 250 D/L Series

Pin

Wire Color

Circuit Number

Function

1

D-BU

188

Blower Motor Resistor Assembly Supply Voltage

2

--

--

Not Used

3

BK

350

Ground

4

GY/BK

754

Blower Motor Speed Control

5

--

--

Not Used

6

PK

743

Blower Motor Speed Signal

Coolant Temperature Sensor


Object Number: 1467020  Size: CH

Connector Part Information

    • KET MG 610070
    • 2-Way F 090 (2.3mm) Series (WH)

Pin

Wire Color

Circuit Number

Function

1

YE

61

Low Reference

2

GY/BK

1596

Coolant Temperature Sensor Signal

HVAC Control - A


Object Number: 1468412  Size: CH

Connector Part Information

    • MOLEX 51155-1615
    • 16-Way F Connector (WH)

Pin

Wire Color

Circuit Number

Function

A1

D-GN

1910

Inside Air Temperature Sensor Signal

A2

--

--

Not Used

A3

OG

1140

Battery Positive Voltage

A4

YE

61

Low Reference

A5

--

--

Not Used

A6

D-GN/WH

762

A/C Request Signal

A7

D-BU/BK

247

High Speed Blower Relay Control

A8

--

--

Not Used

A9

YE

1791

Low Reference

A10-A11

--

--

Not Used

A12

BN

41

Ignition 3 Voltage

A13

BN/WH

309

Right Park Lamp Voltage

A14

D-GN

44

Instrument Panel Lamps Dimmer Switch Signal

A15

L-BU

1316

Air Temperature Door Control

A16

BK

350

Ground

HVAC Control - B


Object Number: 1467032  Size: CH

Connector Part Information

    • MOLEX 51155-2015
    • 20-Way F Connector (WH)

Pin

Wire Color

Circuit Number

Function

B1

PK/BK

1399

Mode Valve Signal

B2

WH/BK

1398

Mode Valve Signal

B3

YE/ D-BU

1397

Lower Mode Valve Solenoid Control

B4

PK

1396

Defrost Mode Valve Solenoid Control

B5

D-GN/BK

1395

Upper Mode Valve Solenoid Control

B6

--

--

Not Used

B7

D-GN/BK

1674

Recirculation Door Control B

B8

PK/WH

1648

Recirculation Door Control A

B9

D-BU

188

Blower Motor Resistor Assembly Supply Voltage

B10

BK

350

Ground

B11

L-BU/BK

590

Sunload Sensor Signal

B12

GY/BK

1596

Coolant Temperature Sensor Signal

B13

L-GN/BK

735

Ambient Air Temperature Sensor Signal

B14

D-GN

95

Windshield Washer Switch Signal

B15

BK

1199

Air Temperature Door Control

B16

YE/BK

1814

Lower Mode Door Position Signal

B17

BN

1812

Low Reference

B18

--

--

Not Used

B19

D-GN/RD

817

Vehicle Speed Signal

B20

GY/BK

754

Blower Motor Speed Signal

Mode Actuator


Object Number: 1467023  Size: CH

Connector Part Information

    • KET MG 610203
    • 7-Way F 118 (PA) Series (BK)

Pin

Wire Color

Circuit Number

Function

1

YE/ D-BU

1397

Lower Mode Valve Solenoid Control

2

PK

1396

Defrost Mode Valve Solenoid Control

3

D-GN /BK

1395

Upper Mode Valve Solenoid Control

4

BN

41

Ignition 3 Voltage

5

BK

350

Ground

6

PK/BK

1399

Mode Valve Signal

7

WH/BK

1398

Mode Valve Signal

Recirculation Actuator


Object Number: 1467023  Size: CH

Connector Part Information

    • KET MG 610203
    • 7-Way F 118 (PA) Series (BK)

Pin

Wire Color

Circuit Number

Function

1-3

--

--

Not Used

4

BN

41

Ignition 3 Voltage

5

PK/WH

1648

Recirculation Door Control A

6

--

--

Not Used

7

D-GN/BK

1647

Recirculation Door Control B

Sunload Sensor


Object Number: 1467049  Size: CH

Connector Part Information

    • KET MG 610489
    • 2-Way F 090 (2.3mm) Series (WH)

Pin

Wire Color

Circuit Number

Function

1

YE

61

Low Reference

2

L-BU/BK

590

Sunload Sensor Signal