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 Quality Sensor (K14)
Table 4: Air Temperature Actuator - Driver
Table 5: Air Temperature Actuator - Front Passenger
Table 6: Air Temperature Actuator - Rear Passenger
Table 7: Air Temperature Sensor - Inside
Table 8: Ambient Air Temperature Sensor
Table 9: Blower Controller
Table 10: Blower Motor
Table 11: Evaporator Temperature Sensor
Table 12: HVAC Control Module - C1
Table 13: HVAC Control Module - C2
Table 14: HVAC Control Module - Rear Auxiliary (w/KA6)
Table 15: Mode Actuator
Table 16: Mode Actuator - Auxiliary
Table 17: Recirculation Actuator
Table 18: Sunload Sensor Assembly

A/C Compressor Clutch


Object Number: 897985  Size: CH

Connector Part Information

    • OEM: 7282-5548-30
    • 2-Way M YESC Weather Pack (BK)

Pin

Wire Color

Circuit No.

Function

1

D-GN

59

A/C Compressor Clutch Supply Voltage

2

BK

1550

Ground (LH2)

BK

1450

Ground (LY7)

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • OEM: 12065287
    • Service: 12102748
    •  3-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BK/WH

2751

Signal Ground (LH2)

BK

452

Sensor Low Reference (LY7)

B

GY

2700

A/C Pressure Sensor 5-Volt Reference (LH2)

GY

596

5-Volt Reference (LY7)

C

OG/BK

380

A/C Refrigerant Pressure Sensor Signal (LH2)

RD/BK

380

A/C Refrigerant Pressure Sensor Signal (LY7)

Air Quality Sensor (K14)


Object Number: 1455873  Size: CH

Connector Part Information

    • OEM: 7283-7062-40
    • 6-Way F 090-2/Class 3 Yazaki (WH)

Pin

Wire Color

Circuit No.

Function

1

YE

61

Outside Ambient Temperature Sensor Low Reference (K14)

2

PU/WH

5203

Air Quality HC Sensor Signal (K14)

3

PK

1439

Run/Crank Ignition 1 Voltage (K14)

4

L-GN/WH

6845

Air Quality NOX Sensor Signal (K14)

5

--

--

Not Used

6

BK

250

Ground (K14)

Air Temperature Actuator - Driver


Object Number: 1283833  Size: CH

Connector Part Information

    • OEM: 7283-5830-30
    • 5-Way F Yazaki (BK)

Pin

Wire Color

Circuit No.

Function

1

YE

61

Low Reference

2

GY

705

5-Volt Reference

3

L-BU

733

Driver Air Temperature Door Position Signal

4

D-BU/BK

1199

Driver Air Temperature Door Control B

5

TN/RD

1791

Driver Air Temperature Door Control A

Air Temperature Actuator - Front Passenger


Object Number: 1283833  Size: CH

Connector Part Information

    • OEM: 7283-5830-30
    • 5-Way F Yazaki (BK)

Pin

Wire Color

Circuit No.

Function

1

GY

705

5-Volt Reference

2

YE

61

Low Reference

3

D-BU

1646

Passenger Air Temperature Door Position Signal

4

WH/BK

1236

Passenger Air Temperature Door Control B

5

GY/BK

2778

Passenger Air Temperature Door Control A

Air Temperature Actuator - Rear Passenger


Object Number: 1283833  Size: CH

Connector Part Information

    • OEM: 7283-5830-30
    • 5-Way F Yazaki (BK)

Pin

Wire Color

Circuit No.

Function

1

YE

61

Low Reference

2

GY

705

5-Volt Reference

3

D-GN

2600

Rear Passenger Air Temperature Door Position Signal

4

BN

2775

Rear Passenger Air Temperature Door Control B

5

L-BU

2776

Rear Passenger Air Temperature Door Control A

Air Temperature Sensor - Inside


Object Number: 1283891  Size: CH

Connector Part Information

    • OEM: 72831020
    • 2-Way F Yazaki 2.3 Series (WH)

Pin

Wire Color

Circuit No.

Function

1

YE

61

Outside Ambient Temperature Sensor Low Reference

2

D-GN

734

Inside Air Temperature Sensor Signal

Ambient Air Temperature Sensor


Object Number: 684793  Size: CH

Connector Part Information

    • OEM: 12052642
    • Service: 12101856
    •  2-Way F Metri-Pack 150 Series Sealed (L-GN)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

735

Outside Ambient Air Temperature Sensor Signal

B

YE

61

Outside Ambient Temperature Sensor Low Reference

Blower Controller


Object Number: 1331457  Size: CH

Connector Part Information

    • OEM: 60981449
    • 4-Way F 312 Sumi Tomo (BK)

Pin

Wire Color

Circuit No.

Function

1

BK

450

Ground

2

GY/BK

754

Blower Motor Speed Control

3

L-BU

188

Blower Motor Resistor Assembly Supply Voltage

4

PU

374

Blower Motor Fan Control

Blower Motor


Object Number: 1385124  Size: CH

Connector Part Information

    • OEM: 7283302030
    • 2-Way F 312/Class 2 (BK)

Pin

Wire Color

Circuit No.

Function

1

L-BU

188

Blower Motor Resistor Assembly Supply Voltage

2

PU

374

Blower Motor Fan Control

Evaporator Temperature Sensor


Object Number: 826317  Size: CH

Connector Part Information

    • OEM: 7123-2820
    • 2-Way F Yazaki (CL)

Pin

Wire Color

Circuit No.

Function

1

GY

731

A/C Refrigerant Low Temperature Sensor Signal

2

YE

61

Low Reference

HVAC Control Module - C1


Object Number: 255037  Size: CH

Connector Part Information

    • OEM: 12160778
    • Service: 12160778
    •  24-Way F Micro-Pack 100 Series (BN)

Pin

Wire Color

Circuit No.

Function

A1

RD/WH

340

Battery Positive Voltage

A2

YE

6817

LED Backlight Dimming Control

A2

YE

6817

LED Backlight Dimming Control

A3

--

--

Not Used

A4

L-GN

1478

Coolant Level Switch Signal

A5

BN

247

Medium Blower Motor Control

A6

--

--

Not Used

A7

PU/WH

5203

Air Quality HC Sensor Signal

A8

L-GN/BK

735

Outside Ambient Air Temperature Sensor Signal

A9

GY

731

A/C Refrigerant Low Temperature Sensor Signal

A10

L-BU/BK

590

Solar Sensor Driver Signal

A11

WH

278

Ambient Light Sensor Signal

A12

GY

705

5-Volt Reference

B1

PK

1539

Run/Crank Ignition 1 Voltage

B2-B4

--

--

Not Used

B5

D-GN

5060

Low Speed GMLAN Serial Data

B6

GY/BK

754

Blower Motor Speed Control

B7

L-GN/WH

6845

Air Quality NOX Sensor Signal

B8

--

--

Not Used

B9

D-GN

734

Inside Air Temperature Sensor Signal

B10

GY

1548

Passenger Solar Sensor Signal

B11

BK/WH

451

Ground

B12

YE

61

Outside Ambient Temperature Sensor Low Reference

HVAC Control Module - C2


Object Number: 73156  Size: CH

Connector Part Information

    • OEM: CO12110088
    • 24-Way F Micro-Pack 100 Series (GY)

Pin

Wire Color

Circuit No.

Function

A1

L-BU

733

Air Temperature Door Position Signal

A2

YE/BK

1814

Mode Door Position Signal

A3

BN

1838

Recirculation Door Position Signal

A4

GY

2599

Rear Mode Door Position Signal

A5

--

--

Not Used

A6

L-BU

2776

Rear Passenger Air Temperature Door Control A

A7

L-GN/WH

5729

Rear Mode Door Control A

A8

YE

1791

Air Temperature Door Control Low Reference

A9

GY/BK

2778

Passenger Air Temperature Motor Control

A10

YE

1318

Mode Door Control B

A11

GY

5127

After Boil Coolant Pump Relay Control

A12

PU

1648

Recirculation Door Control A

B1

D-BU

1646

Passenger Air Temperature Door Position Signal

B2

--

--

Not Used

B3

D-GN

2600

Rear Passenger Air Temperature Door Position Signal

B4

PU

722

Rear Mode Switch Signal (w/KA6)

B5

L-BU

733

Rear Temperature Switch Signal (w/KA6)

B6

BN

2775

Rear Passenger Air Temperature Door Control B

B7

L-GN/BK

5730

Rear Mode Door Control B

B8

D-BU

1199

Air Temperature Door Control

B9

WH/BK

1236

Passenger Air Temperature Door Control

B10

TN

2273

Mode Door Control A

B11

--

--

Not Used

B12

D-GN

1614

Recirculation Door Control B

HVAC Control Module - Rear Auxiliary (w/KA6)


Object Number: 744295  Size: CH

Connector Part Information

    • OEM: CA12084944
    • 16-Way F Micro-Pack 100 (BK)

Pin

Wire Color

Circuit No.

Function

A1

YE

1491

Backlight Lamp Control

A2

PK

1636

Right Rear Heated Seat Low Indicator Control

A3

D-BU/WH

6586

Right Rear Heated Seat Medium Indicator Control

A4

TN/WH

1635

Right Rear Heated Seat High Indicator Control

A5

YE

182

Heated Seat Control Module Enable Signal

A6

BN

1637

Left Rear Heated Seat Switch Signal

A7

L-BU

733

Rear Temperature Switch Signal

A8

YE

61

Low Reference

B1

BK

450

Ground

B2

TN/WH

1638

Left Rear Heated Seat High Indicator Control

B3

BN/WH

6585

Left Rear Heated Seat Medium Indicator Control

B4

PK

1631

Left Rear Heated Seat Low Indicator Control

B5

BN

1634

Right Rear Heated Seat Switch Signal

B6

PU

722

Rear Mode Switch Signal

B7

GY

705

5-Volt Reference

B8

--

--

Not Used

Mode Actuator


Object Number: 1283833  Size: CH

Connector Part Information

    • OEM: 7283-5830-30
    • 5-Way F Yazaki (BK)

Pin

Wire Color

Circuit No.

Function

1

GY

705

5-Volt Reference

2

YE

61

Low Reference

3

YE/BK

1814

Mode Door Position Signal

4

OG

2273

Mode Door Control A

5

YE/GN

1318

Mode Door Control B

Mode Actuator - Auxiliary


Object Number: 1283833  Size: CH

Connector Part Information

    • OEM: 7283-5830-30
    •  5-Way F Yazaki (BK)

Pin

Wire Color

Circuit No.

Function

1

YE

61

Outside Ambient Temperature Sensor Low Reference

2

GY

705

5-Volt Reference

3

GY

2599

Rear Mode Motor Signal

4

L-GN/WH

5729

Rear Mode Motor Supply Voltage

5

L-GN/BK

5730

Rear Mode Motor Low Reference

Recirculation Actuator


Object Number: 1283833  Size: CH

Connector Part Information

    • OEM: 7283-5830-30
    •  5-Way F Yazaki (BK)

Pin

Wire Color

Circuit No.

Function

1

GY

705

5-Volt Reference

2

YE

61

Low Reference

3

BN

1838

Recirculation Door Position Signal

4

PU

1648

Recirculation Door Control A

5

D-GN

1614

Recirculation Door Control B

Sunload Sensor Assembly


Object Number: 130637  Size: CH

Connector Part Information

    • OEM: 12064760
    • 4-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

590

Solar Sensor Driver Signal

B

GY

1548

Passenger Solar Sensor Signal

C

YE

61

Low Reference

D

WH

278

Ambient Light Sensor Signal