GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor - 1.4L/1.6L
Table 3: A/C Refrigerant Pressure Sensor - 1.8L/2.0L
Table 4: A/C Refrigerant Pressure Sensor - Diesel
Table 5: Air Temperature Actuator
Table 6: Ambient Air Temperature Sensor
Table 7: Blower Motor
Table 8: Blower Motor Control Module
Table 9: Blower Motor Relay
Table 10: Coolant Temperature Sensor
Table 11: High Speed Blower Motor Relay
Table 12: HVAC Control - A
Table 13: HVAC Control - B
Table 14: Inside Air Temperature
Table 15: Mode Actuator
Table 16: Recirculation Actuator
Table 17: Sunload Sensor

A/C Compressor Clutch


Object Number: 684852  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

D-GN

59

A/C Compressor Clutch Supply Voltage

B

BK

150

Ground

A/C Refrigerant Pressure Sensor - 1.4L/1.6L


Object Number: 258299  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BN

413

Low Reference

B

L-BU/BK

1688

5-Volt Reference

C

RD/L-BU

203

A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor - 1.8L/2.0L


Object Number: 258299  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

PU/WH

632

Low Reference

B

GY

605

5-Volt Reference

C

L-BU

380

A/C Refrigerant Pressure Sensor

A/C Refrigerant Pressure Sensor - Diesel


Object Number: 258299  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BN/WH

1688

5-Volt Reference

B

BK/WH

413

Low Reference

C

BN/BK

203

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 No.

Function

1

--

--

Not Used

2

BK

1199

Air Temperature Door Control

3

BN

1812

Low Reference

4

--

--

Not Used

5

YE

1791

Low Reference

6

YE/BK

1814

Lower Mode Door Position Signal

7

L-BU

1316

Air Temperature Door Control

Ambient Air Temperature Sensor


Object Number: 1468380  Size: CH

Connector Part Information

    • KET MG 610489
    • 2-Way F NMWP 04F-B Ass'y

Pin

Wire Color

Circuit No.

Function

1

YE

61

Low Reference

2

L-GN/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 No.

Function

1

YE

744

Blower Motor Supply Voltage

2

PK

743

Blower Motor Speed Signal

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 No.

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

Blower Motor Relay


Object Number: 1497842  Size: CH

Connector Part Information

    • AK 36409
    • 9-Way F Relay

Pin

Wire Color

Circuit No.

Function

30

BK

350

Battery Positive Voltage

85

DK-BU/BK

247

Ground

86

BN

41

Blower Motor High Control

87

PK

743

Blower Motor Feed

Coolant Temperature Sensor


Object Number: 1467020  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

YE

61

Low Reference

2

GY/BK

1596

Coolant Temperature Sensor Signal

High Speed Blower Motor Relay


Object Number: 1497842  Size: CH

Connector Part Information

    • AK 36409
    • 5-Way F (GY)

Pin

Wire Color

Circuit No.

Function

30

BK

350

Ground

85

D-BU/BK

247

High Speed Blower Relay Control

86

BN

41

Ignition 3 Voltage

87

PK

743

Blower Motor Speed Control

HVAC Control - A


Object Number: 1468412  Size: CH

Connector Part Information

    • MOLEX 51155-1615
    • 16-Way F

Pin

Wire Color

Circuit No.

Function

A1

BK

350

Ground

A2

L-BU

1316

Air Temperature Door Control

A3

D-GN

44

Instrument Panel Lamps Dimmer Switch Signal

A4

BN/WH

309

Right Park Lamp Voltage

A5

BN

41

Ignition 3 Voltage

A6-A7

--

--

Not Used

A8

YE

1791

Low Reference

A9

--

--

Not Used

A10

D-BU/BK

247

High Speed Blower Relay Control

A11

D-GN/WH

762

A/C Request Signal

A12

WH

193

Rear Defog Relay Control

A13

YE

61

Low Reference

A14

OG

1140

Battery Positive Voltage

A15

--

--

Not Used

A16

D-GN

1910

Inside Air Temperature Sensor Signal

HVAC Control - B


Object Number: 1467032  Size: CH

Connector Part Information

    • MOLEX 51155-2015
    • 20-Way F

Pin

Wire Color

Circuit No.

Function

B1

GY/BK

754

Blower Motor Speed Signal

B2

D-GN/RD

817

Vehicle Speed Signal

B3

--

--

Not Used

B4

BN

1812

Low Reference

B5

YE/BK

1814

Lower Mode Door Position Signal

B6

BK

1199

Air Temperature Door Control

B7

D-GN

95

Windshield Washer Switch Signal

B8

L-GN/BK

735

Ambient Air Temperature Sensor Signal

B9

GY/BK

1596

Coolant Temperature Sensor Signal

B10

L-BU/BK

590

Sunload Sensor Signal

B11

BK

350

Ground

B12

D-BU

188

Blower Motor Resistor Assembly Supply Voltage

B13

PK/WH

1648

Recirculation Door Control A

B14

D-GN/BK

1647

Recirculation Door Control B

B15

--

--

Not Used

B16

D-GN/BK

1395

Upper Mode Valve Solenoid Control

B17

PK

1396

Defrost Mode Valve Solenoid Control

B18

YE

1397

Lower Mode Valve Solenoid Control

B19

WH/BK

1398

Mode Valve Signal

B20

PK/BK

1399

Mode Valve Signal

Inside Air Temperature


Object Number: 1468403  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

D-GN

1910

Inside Air Temperature Sensor Signal

2

YE

61

Low Reference

Mode Actuator


Object Number: 1467023  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

1

YE

1397

Lower Mode Valve Solenoid Control

2

PK

1396

Defrost Mode Valve Solenoid Control

3

D-G/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 No.

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 (2.3 mm) Series

Pin

Wire Color

Circuit No.

Function

1

YE

61

Low Reference

2

L-BU/BK

590

Sunload Sensor Signal