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 - Left
Connector 4: Air Temperature Actuator - Right
Connector 5: Ambient Air Temperature Sensor
Connector 6: Blower Motor - Auxiliary
Connector 7: Blower Motor Resistor Assembly - Auxiliary
Connector 8: Blower Motor
Connector 9: Blower Motor Control Module
Connector 10: Blower Motor Switch - Auxiliary
Connector 11: Blower Motor Switch - Rear Auxiliary
Connector 12: Evaporator Temperature Sensor
Connector 13: HVAC Control Module
Connector 14: Inside Air Temperature Sensor
Connector 15: Mode Actuator
Connector 16: Recirculation Actuator
Connector 17: Sunload/Ambient Light Sensor

A/C Compressor Clutch


Object Number: 897985  Size: CH

Connector Part Information

  • OEM: 7282-5548-30
  • Service: 88952821
  • Description: 2-Way M Yazaki Weather Pack (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

A/C Compressor Clutch

Pin

Wire Color

Circuit No.

Function

1

D-GN

59

A/C Compressor Clutch Supply Voltage

2

BK

750

Ground (LY7)

BK

1550

Ground (LH2)

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

  • OEM: 12186689
  • Service: 88988301
  • Description: 3-Way F Metri-Pack 150 Series, Sealed, P2S (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

A/C Refrigerant Pressure Sensor

Pin

Wire Color

Circuit No.

Function

A

TN

452

Low Reference (LY7)

TN

470

Low Reference (LH2)

B

GY

596

5-Volt Reference (LY7)

GY

2700

5-Volt Reference (LH2)

C

OG/BK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator - Left


Object Number: 826267  Size: CH

Connector Part Information

  • OEM: IL-AG5-7S-S3C1
  • Service: 88988494
  • Description: 7-Way F Molex (L-GN)

Terminal Part Information

  • Pins: 1, 3, 5, 6, 7
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Air Temperature Actuator - Left

Pin

Wire Color

Circuit No.

Function

1

GY

705

5-Volt Reference

2

--

--

Not Used

3

YE

61

Low Reference

4

--

--

Not Used

5

L-BU

733

Driver Air Temperature Door Position Signal

6

D-BU

1199

Driver Air Temperature Door Control B

7

YE

1791

Driver Air Temperature Door Control A

Air Temperature Actuator - Right


Object Number: 826267  Size: CH

Connector Part Information

  • OEM: IL-AG5-7S-S3C1
  • Service: 88988494
  • Description: 7-Way F Molex (L-GN)

Terminal Part Information

  • Pins: 1, 3, 5, 6, 7
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Air Temperature Actuator - Right

Pin

Wire Color

Circuit No.

Function

1

YE

61

Low Reference

2

--

--

Not Used

3

GY

705

5-Volt Reference

4

--

--

Not Used

5

D-BU

1646

Passenger Air Temperature Door Position

6

GY/BK

2778

Passenger Air Temperature Door Control A

7

WH/BK

1236

Passenger Air Temperature Door Control B

Ambient Air Temperature Sensor


Object Number: 1283893  Size: CH

Connector Part Information

  • OEM: 12052642
  • Service: 12101856
  • Description: 2-Way F M/D 150 Sealed (BK)

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

YE

61

Low Reference

Blower Motor - Auxiliary


Object Number: 1411605  Size: CH

Connector Part Information

  • OEM: 6098-0325
  • Service: 89046848
  • Description: 2-Way F Sumitomo (WH)

Terminal Part Information

  • Terminal/Tray: 7116-4032/11
  • Core/Insulation Crimp: A/G
  • Release Tool/Test Probe: 12094430/J-35616-40 (BU)

Blower Motor - Auxiliary

Pin

Wire Color

Circuit No.

Function

1

OG

1052

Auxiliary Blower Motor Supply Voltage

2

PU

65

Blower Motor Supply Voltage

Blower Motor Resistor Assembly - Auxiliary


Object Number: 1411606  Size: CH

Connector Part Information

  • OEM: 6098-0514
  • Service: 89046850
  • Description: 4-Way F Sumitomo (WH)

Terminal Part Information

  • Terminal/Tray: 7116-4032/11
  • Core/Insulation Crimp: A/G
  • Release Tool/Test Probe: 12094430/J-35616-40 (BU)

Blower Motor Resistor Assembly - Auxiliary

Pin

Wire Color

Circuit No.

Function

1

OG

1052

Auxiliary Blower Motor Supply Voltage

2

TN

63

Blower Motor Medium 1 Control

3

L-BU

72

Medium 2 Blower Motor Control

4

YE

60

Blower Motor Low Control

Blower Motor


Object Number: 1385124  Size: CH

Connector Part Information

  • OEM: 7283-3020-30
  • Service: 88988400
  • Description: 2-Way F Yazaki (BK)

Terminal Part Information

  • Terminal/Tray: 7116-6041/11
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 12094430/J-35616-44 (YE)

Blower Motor

Pin

Wire Color

Circuit No.

Function

1

PU

374

Auxiliary Blower Motor Speed Control

2

L-BU

188

Blower Motor Control Processor Supply Voltage

Blower Motor Control Module


Object Number: 1331457  Size: CH

Connector Part Information

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

Terminal Part Information

  • Pins: 1, 2, 4
  • Terminal/Tray: 7116-6041/11
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 12094430/J-35616-44 (YE)
  • Pins: 3
  • 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

Pin

Wire Color

Circuit No.

Function

1

PU

374

Auxiliary Blower Motor Speed Control

2

L-BU

188

Blower Motor Control Processor Supply Voltage

3

GY/BK

754

Blower Motor Speed Control

4

BK

450

Ground

Blower Motor Switch - Auxiliary


Object Number: 808876  Size: CH

Connector Part Information

  • OEM: 12015416
  • Service: 12117340
  • Description: 8-Way F Metri-Pack 280 Series (WH)

Terminal Part Information

  • Pins: A, B, C, D, E, F, G
  • Terminal/Tray: 12015858/4
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: H
  • Terminal/Tray: 12034046/2
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Blower Motor Switch - Auxiliary

Pin

Wire Color

Circuit No.

Function

A

BK

1050

Ground

B

PU/WH

5264

Rear Auxiliary Mode Door Control

C

BK

1050

Ground

D

YE

60

Blower Motor Low Control

E

TN

63

Blower Motor Medium 1 Control

F

L-BU

72

Medium 2 Blower Motor Control

G

OG

1052

Auxiliary Blower Motor Supply Voltage

H

YE

1491

Backlight Lamps Control

Blower Motor Switch - Rear Auxiliary


Object Number: 808876  Size: CH

Connector Part Information

  • OEM: 12015416
  • Service: 12117340
  • Description: 8-Way F Metri-Pack 280 Series (WH)

Terminal Part Information

  • Pins: A, C, D, E, F, G
  • Terminal/Tray: 12015858/4
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: H
  • Terminal/Tray: 12034046/2
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Blower Motor Switch - Rear Auxiliary

Pin

Wire Color

Circuit No.

Function

A

BK

1050

Ground

B

--

--

Not Used

C

PU/WH

5264

Rear Auxiliary Mode Door Control

D

YE

60

Blower Motor Low Control

E

TN

63

Blower Motor Medium Control

F

L-BU

72

Medium 2 Blower Motor Control

G

OG

1052

Auxiliary Blower Motor Supply Voltage

H

YE

1491

Backlight Lamps Control

Evaporator Temperature Sensor


Object Number: 826317  Size: CH

Connector Part Information

  • OEM: 7123-2820
  • Service: See Catalog
  • Description: 2-Way F Yazaki (CL)

Terminal Part Information

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

Evaporator Temperature Sensor

Pin

Wire Color

Circuit No.

Function

1

GY

731

Evaporator Temperature Sensor Signal

2

YE

61

Low Reference

HVAC Control Module


Object Number: 73222  Size: CH

Connector Part Information

  • OEM: 12110115
  • Service: 12110115
  • Description: 32-Way F Micro-Pack 100 Series (BU)

Terminal Part Information

  • Pins: E1, E3, E4, E5, E6, E7, E8, E9, E10, E11, E12, E13, E14, E15, F1, F3, F4, F5, F6, F7, F8, F9, F10, F11, F12, F13, F14, F15
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

HVAC Control Module

Pin

Wire Color

Circuit No.

Function

E1

RD/WH

340

Battery Positive Voltage

E2

--

--

Not Used

E3

D-BU

1199

Driver Air Temperature Door Control B

E4

WH/BK

1236

Passenger Air Temperature Door Control B

E5

YE

1318

Mode Door Control B

E6

PU

1838

Recirculation Door Control A

E7

BN

247

Blower Motor Relay Control

E8

GY/BK

754

Blower Motor Speed Control

E9

PU

1807

Class 2 Serial Data

E10

PU

1807

Class 2 Serial Data

E11

L-GN

1478

Coolant Level Switch Signal

E12

YE/BK

1814

Mode Door Position Signal

E13

L-GN/BK

735

Ambient Air Temperature Sensor Signal

E14

D-GN

734

Inside Air Temperature Sensor Signal

E15

GY

705

5-Volt Reference

E16

--

--

Not Used

F1

BN

141

Ignition 3 Voltage

F2

--

--

Not Used

F3

YE

1791

Driver Air Temperature Door Control A

F4

GY/BK

2778

Passenger Air Temperature Door Control A

F5

TN

2273

Mode Door Control A

F6

D-GN

1614

Recirculation Door Control B

F7

GY

5127

Afterboil Coolant Pump Supply Voltage (V92)

F8

BK/WH

451

Ground

F9

D-BU

1646

Passenger Air Temperature Door Position Signal

F10

L-BU

733

Driver Air Temperature Door Position Signal

F11

GY

1548

Passenger Sunload Sensor Signal

F12

L-BU/BK

590

Driver Sunload Sensor Signal

F13

WH

278

Ambient Light Sensor Signal

F14

GY

731

Evaporator Temperature Sensor Signal

F15

YE

61

Low Reference

F16

--

--

Not Used

Inside Air Temperature Sensor


Object Number: 1283891  Size: CH

Connector Part Information

  • OEM: 7283-6160
  • Service: 88952826
  • Description: 2-Way F Yazaki 2.3 Series (WH)

Terminal Part Information

  • Terminal/Tray: 7116-4020/11
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-18 (BK)

Inside Air Temperature Sensor

Pin

Wire Color

Circuit No.

Function

1

D-GN

734

Inside Air Temperature Sensor Signal

2

YE

61

Low Reference

Mode Actuator


Object Number: 826267  Size: CH

Connector Part Information

  • OEM: IL-AG5-7S-S3C1
  • Service: 88988494
  • Description: 7-Way F Molex (L-GN)

Terminal Part Information

  • Pins: 1, 3, 5, 6, 7
  • 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

YE

61

Low Reference

2

--

--

Not Used

3

GY

705

5-Volt Reference

4

--

--

Not Used

5

GY

1814

Mode Door Position Signal

6

PK

1318

Mode Door Control B

7

L-BU

2273

Mode Door Control A

Recirculation Actuator


Object Number: 826267  Size: CH

Connector Part Information

  • OEM: IL-AG5-7S-S3C1
  • Service: 88988494
  • Description: 7-Way F (GN)

Terminal Part Information

  • Pins: 1, 3, 7
  • 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

D-GN

1614

Recirculation Door Control B

2

--

--

Not Used

3

PU

1838

Recirculation Door Control A

4-6

--

--

Not Used

7

BN

41

Ignition 3 Voltage

Sunload/Ambient Light Sensor


Object Number: 130637  Size: CH

Connector Part Information

  • OEM: 12064760
  • Service: 12085208
  • 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

Sunload/Ambient Light Sensor

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

590

Driver Sunload Sensor Signal

B

GY

1548

Passenger Sunload Sensor Signal

C

YE

61

Low Reference

D

WH

278

Ambient Light Sensor Signal