GM Service Manual Online
For 1990-2009 cars only
Connector 1: A/C Compressor Clutch
Connector 2: A/C Refrigerant Pressure Sensor
Connector 3: Air Temperature Actuator - Driver
Connector 4: Air Temperature Actuator - Front Passenger
Connector 5: Air Temperature Actuator - Rear Passenger (CJ4)
Connector 6: Air Temperature Sensor - Inside
Connector 7: Ambient Air Temperature Sensor
Connector 8: Blower Motor
Connector 9: Blower Motor - Auxiliary (CJ4)
Connector 10: Blower Motor Control Module C1 (CJ2)
Connector 11: Blower Motor Control Module C2 (CJ2)
Connector 12: Blower Motor Control Module (CJ4)
Connector 13: Blower Motor Control Module - Auxiliary (CJ4)
Connector 14: HVAC Control Module - Auxiliary (CJ4)
Connector 15: HVAC Control Module C1
Connector 16: HVAC Control Module C2
Connector 17: HVAC Control Module C3
Connector 18: Mode Actuator
Connector 19: Mode Actuator - Auxiliary (CJ4)
Connector 20: Recirculation Actuator

A/C Compressor Clutch


Object Number: 897985  Size: CH

Connector Part Information

  • OEM: 7282-5548-30
  • Service: 88953303
  • Description: 2-Way M YESC Weather Pack (BK)

Terminal Part Information

  • Terminal/Tray: 7114-4102-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-3 (GY)

A/C Compressor Clutch

Pin

Wire Color

Circuit No.

Function

1

D-GN

59

A/C Compressor Clutch Supply Voltage

2

BK

1150

Ground

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

  • OEM: 12078090
  • Service: 88988301
  • Description: 3-Way F Metri-Pack 150 Series (NA)

Terminal Part Information

  • Terminal/Tray: 12103881/2
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

A/C Refrigerant Pressure Sensor

Pin

Wire Color

Circuit No.

Function

A

L-BU

5514

Low Reference

B

GY/BK

2700

5-Volt Reference

C

OG/WH

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator - Driver


Object Number: 1283833  Size: CH

Connector Part Information

  • OEM: 7283-5830-30
  • Service: 89046839
  • Description: 5-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Air Temperature Actuator - Driver

Pin

Wire Color

Circuit No.

Function

1

GY

598

5-Volt Reference

2

GY/BK

1798

Low Reference

3

D-BU/WH

733

Driver Air Temperature Door Position Signal

4

YE/OG

1791

Driver Air Temperature Door Control A

5

D-BU/WH

1199

Driver Air Temperature Door Control B

Air Temperature Actuator - Front Passenger


Object Number: 1283833  Size: CH

Connector Part Information

  • OEM: 7283-5830-30
  • Service: 89046839
  • Description: 5-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Air Temperature Actuator - Front Passenger

Pin

Wire Color

Circuit No.

Function

1

GY/BK

1798

Low Reference

2

GY

598

5-Volt Reference

3

D-BU

1646

Passenger Air Temperature Door Position

4

WH/BU

1236

Passenger Air Temperature Door Control B

5

BN/BK

1641

Passenger Air Temperature Door Control A

Air Temperature Actuator - Rear Passenger (CJ4)


Object Number: 861682  Size: CH

Connector Part Information

  • OEM: 7283-5830
  • Service: 89046839
  • Description: 5-Way F Unsealed (WH)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Air Temperature Actuator - Rear Passenger (CJ4)

Pin

Wire Color

Circuit No.

Function

1

GY

598

5-Volt Reference

2

GY/BK

1798

Low Reference

3

PK

2145

Rear Air Temperature Door Position

4

YE

2214

Rear Air Temperature Door Control B

5

GY/RD

2614

Rear Air Temperature Door Control A

Air Temperature Sensor - Inside


Object Number: 39661  Size: CH

Connector Part Information

  • OEM: 12047786
  • Service: 12085536
  • Description: 4-Way M Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12047581/2
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-3 (GY)

Air Temperature Sensor - Inside

Pin

Wire Color

Circuit No.

Function

A

D-GN

734

Inside Air Temperature Sensor Signal

B

WH/BK

5515

Air Temperature Motor Control

C

BK

350

Ground

D

GY/BK

1798

Low Reference

Ambient Air Temperature Sensor


Object Number: 684793  Size: CH

Connector Part Information

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

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Ambient Air Temperature Sensor

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

735

Ambient Air Temperature Sensor Signal

B

GY/BK

1798

Low Reference

Blower Motor


Object Number: 1664494  Size: CH

Connector Part Information

  • OEM: 6098-1315
  • Service: 88988637
  • Description: 2-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor

Pin

Wire Color

Circuit No.

Function

1

PU

65

Blower Motor Supply Voltage (CJ2)

RD/BK

442

Battery Positive Voltage (CJ4)

2

BK/RD

5987

Front Blower Motor Low Reference

Blower Motor - Auxiliary (CJ4)


Object Number: 820083  Size: CH

Connector Part Information

  • OEM: 7283-7433
  • Service: 12126461
  • Description: 3-Way F Metri-Pack 280 Series (WH)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor - Auxiliary (CJ4)

Pin

Wire Color

Circuit No.

Function

1

BN

341

Ignition 3 Voltage

2

BK

450

Ground

3

OG/RD

5988

Low Reference

Blower Motor Control Module C1 (CJ2)


Object Number: 1522871  Size: CH

Connector Part Information

  • OEM: 15226103
  • Service: 88988507
  • Description: 2-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor Control Module C1 (CJ2)

Pin

Wire Color

Circuit No.

Function

1

PU

65

Blower Motor Supply Voltage

2

BK/RD

5987

Front Blower Motor Low Reference

Blower Motor Control Module C2 (CJ2)


Object Number: 1798802  Size: CH

Connector Part Information

  • OEM: 7283-9749-30
  • Service: 88988512
  • Description: 6-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor Control Module C2 (CJ2)

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

GY/GN

754

Blower Motor Speed Control

4

--

--

Not Used

5

BK

450

Ground

6

PK/OG

2540

Battery Positive Voltage

Blower Motor Control Module (CJ4)


Object Number: 1331457  Size: CH

Connector Part Information

  • OEM: 6098-1449
  • Service: 88988396
  • Description: 4-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor Control Module (CJ4)

Pin

Wire Color

Circuit No.

Function

1

BK

450

Ground

2

GY/GN

754

Blower Motor Speed Control

3

RD/BK

442

Battery Positive Voltage

4

BK/RD

5987

Front Blower Motor Low Reference

Blower Motor Control Module - Auxiliary (CJ4)


Object Number: 1664492  Size: CH

Connector Part Information

  • OEM: 6070-4612
  • Service: Service by Harness - See Part Catalog
  • Description: 4-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor Control Module - Auxiliary (CJ4)

Pin

Wire Color

Circuit No.

Function

1

D-GN

2211

Rear Blower Motor Speed Control

2

BK

450

Ground

3

OG

761

Blower Speed Feed Back Signal

4

OG

5988

Low Reference

HVAC Control Module - Auxiliary (CJ4)


Object Number: 1664584  Size: CH

Connector Part Information

  • OEM: X40383-B523
  • Service: 19115697
  • Description: 10-Way F (BK)

Terminal Part Information

  • Pins: 1, 4, 5, 6, 8, 10
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

HVAC Control Module - Auxiliary (CJ4)

Pin

Wire Color

Circuit No.

Function

1

RD/D-GN

1040

Battery Positive Voltage

2-3

--

--

Not Used

4

L-GN

2211

Rear Blower Motor Speed Control

5

OG

761

Blower Speed Feed Back Signal

6

D-GN

5060

Low Speed GMLAN Serial Data

7

--

--

Not Used

8

BK

450

Ground

9

--

--

Not Used

10

GY

8

Backlight Lamp Control (AQ9)

YE

1491

Backlight Lamp Control (AV8)

HVAC Control Module C1


Object Number: 1664585  Size: CH

Connector Part Information

  • OEM: 7283-4544-30
  • Service: 89047360
  • Description: 18-Way F (BK)

Terminal Part Information

  • Pins: 1, 2, 3, 4, 5, 7, 9, 10, 11, 15, 18
  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

HVAC Control Module C1

Pin

Wire Color

Circuit No.

Function

1

GY

598

5-Volt Reference

2

BN

64

High Blower Motor Relay Control (CJ4)

3

WH

193

Rear Defog Relay Control

4

D-GN

5060

Low Speed GMLAN Serial Data

5

D-GN

5060

Low Speed GMLAN Serial Data

6

--

--

Not Used

7

GY/PK

754

Blower Motor Speed Control

8

--

--

Not Used

9

OG/PK

1840

Battery Positive Voltage

10

GY/BK

1798

Low Reference

11

BK

350

Ground

12-14

--

--

Not Used

15

WH/BK

5515

Air Temperature Motor Control

16-17

--

--

Not Used

18

PK

339

Ignition 1 Voltage

HVAC Control Module C2


Object Number: 1664586  Size: CH

Connector Part Information

  • OEM: 7283-9081
  • Service: 89047359
  • Description: 16-Way F (WH)

Terminal Part Information

  • Pins: 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13
  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

HVAC Control Module C2

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

L-BU

733

Driver Air Temperature Door Position Signal

3

YE/BK

1814

Lower Mode Door Position Signal

4

GY

1548

Right Sunload Sensor Signal

5

L-BU/BK

590

Left Sunload Sensor Signal

6

WH

2622

Evaporator Low Temperature Sensor Signal

7

L-GN/BK

735

Ambient Air Temperature Sensor Signal

8

D-GN

734

Inside Air Temperature Sensor Signal

9

--

--

Not Used

10

D-BU

1646

Passenger Air Temperature Door Position

11

L-BU/OG

706

Recirculation Valve Solenoid Signal

12

PK

2145

Rear Air Temperature Door Position (CJ4)

13

GY

2599

Rear Mode Door Position Signal (CJ4)

14-16

--

--

Not Used

HVAC Control Module C3


Object Number: 1664588  Size: CH

Connector Part Information

  • OEM: 7283-4548-60
  • Service: 89047361
  • Description: 18-Way F (GN)

Terminal Part Information

  • Pins: 1, 2, 3, 4, 5, 6, 7, 8, 12, 13, 14, 15, 16, 17
  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

HVAC Control Module C3

Pin

Wire Color

Circuit No.

Function

1

PU/WH

1382

LED Dimming Signal

2

YE

1491

Backlight Lamp Control

3

GY

2614

Rear Air Temperature Door Control A (CJ4)

4

WH/BK

1236

Passenger Air Temperature Door Control B

5

L-BU/YE

1199

Driver Air Temperature Door Control B

6

D-GN

1614

Recirculation Door Control B

7

YE/WH

1318

Lower Mode Door Control B

8

L-GN/WH

5729

Rear Mode Door Control A (CJ4)

9-11

--

--

Not Used

12

BK/YE

2214

Rear Air Temperature Door Control B (CJ4)

13

L-BU/PU

1641

Passenger Air Temperature Door Control A

14

YE/GY

1791

Driver Air Temperature Door Control A

15

TN/BK

2274

Recirculation Door Control A

16

TN

2273

Mode Door Control A

17

L-GN/BK

5730

Rear Mode Door Control B (CJ4)

18

--

--

Not Used

Mode Actuator


Object Number: 1283833  Size: CH

Connector Part Information

  • OEM: 7283-5830-30
  • Service: 89046839
  • Description: 5-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Mode Actuator

Pin

Wire Color

Circuit No.

Function

1

GY

598

5-Volt Reference

2

GY/BK

1798

Low Reference

3

YE/BK

1814

Lower Mode Door Position Signal

4

OG/WH

2273

Mode Door Control A

5

YE

1318

Lower Mode Door Control B

Mode Actuator - Auxiliary (CJ4)


Object Number: 1283833  Size: CH

Connector Part Information

  • OEM: 7283-5830-30
  • Service: 89046839
  • Description: 5-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Mode Actuator - Auxiliary (CJ4)

Pin

Wire Color

Circuit No.

Function

1

GY/BK

1798

Low Reference

2

GY

598

5-Volt Reference

3

GY

2599

Rear Mode Door Position Signal

4

L-GN/WH

5729

Rear Mode Door Control A

5

L-GN/BK

5730

Rear Mode Door Control B

Recirculation Actuator


Object Number: 1283833  Size: CH

Connector Part Information

  • OEM: 7283-5830-30
  • Service: 89046839
  • Description: 5-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Recirculation Actuator

Pin

Wire Color

Circuit No.

Function

1

GY

598

5-Volt Reference

2

GY/BK

1798

Low Reference

3

L-BU

706

Recirculation Valve Solenoid Control

4

OG/BU

2274

Recirculation Door Control A

5

D-GN

1614

Recirculation Door Control B