GM Service Manual Online
For 1990-2009 cars only
Connector 1: A/C Compressor Clutch (L26/L32)
Connector 2: A/C Compressor Clutch (LS4)
Connector 3: A/C Refrigerant Pressure Sensor (LS4)
Connector 4: A/C Refrigerant Pressure Sensor (L26/L32)
Connector 5: Air Temperature Actuator - Left
Connector 6: Air Temperature Actuator - Right
Connector 7: Air Temperature Sensor - Inside
Connector 8: Air Temperature Sensor - Lower Left
Connector 9: Air Temperature Sensor - Lower Right
Connector 10: Air Temperature Sensor - Upper Left
Connector 11: Air Temperature Sensor - Upper Right
Connector 12: Blower Motor
Connector 13: Blower Motor Control Processor
Connector 14: HVAC Control Module C1
Connector 15: HVAC Control Module C2
Connector 16: Mode Actuator
Connector 17: Recirculation Actuator
Connector 18: Sunload Sensor Assembly

A/C Compressor Clutch (L26/L32)


Object Number: 684852  Size: CH

Connector Part Information

  • OEM: 12162017
  • Service: 12101937
  • Description: 2-Way F Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

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

A/C Compressor Clutch (L26/L32)

Pin

Wire Color

Circuit No.

Function

A

D-GN

59

A/C Compressor Clutch Supply Voltage

B

BK

1050

Ground

A/C Compressor Clutch (LS4)


Object Number: 684852  Size: CH

Connector Part Information

  • OEM: 12162017
  • Service: 12101937
  • Description: 2-Way F Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

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

A/C Compressor Clutch (LS4)

Pin

Wire Color

Circuit No.

Function

A

BK

1050

Ground

B

D-GN

59

A/C Compressor Clutch Supply Voltage

A/C Refrigerant Pressure Sensor (LS4)


Object Number: 1519475  Size: CH

Connector Part Information

  • OEM: 15477863
  • Service: 88988301
  • Description: 3-Way F GT 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

A/C Refrigerant Pressure Sensor (LS4)

Pin

Wire Color

Circuit No.

Function

1

BK

2751

Low Reference

2

GY

2700

5-Volt Reference 1

3

RD/BK

380

A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor (L26/L32)


Object Number: 1581660  Size: CH

Connector Part Information

  • OEM: 15397149
  • Service: 88988301
  • Description: 3-Way F GT 150 Series Sealed 5.2 (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 (L26/L32)

Pin

Wire Color

Circuit No.

Function

1

BK

2751

Low Reference

2

GY

2700

5-Volt Reference 2

3

RD/BK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator - Left


Object Number: 704047  Size: CH

Connector Part Information

  • OEM: 12059110
  • Service: 88953271
  • Description: 2-Way F Metri-Pack 150 Series (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 - Left

Pin

Wire Color

Circuit No.

Function

A

YE

1791

Air Temperature Door Control A

B

D-BU

1199

Air Temperature Door Control B

Air Temperature Actuator - Right


Object Number: 704047  Size: CH

Connector Part Information

  • OEM: 12059110
  • Service: 88953271
  • Description: 2-Way F Metri-Pack 150 Series (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 - Right

Pin

Wire Color

Circuit No.

Function

A

WH/BK

1236

Right Air Temperature Door Control A

B

D-BU

1646

Right Air Temperature Door Control B

Air Temperature Sensor - Inside


Object Number: 1362560  Size: CH

Connector Part Information

  • OEM: 10738109
  • Service: 88953365
  • Description: 6-Way F Cinch 0.635 Series (BK)

Terminal Part Information

  • Pins: 1, 3, 4, 6
  • Terminal/Tray: 928999-5/15
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Air Temperature Sensor - Inside

Pin

Wire Color

Circuit No.

Function

1

PK

739

Ignition 1 Voltage

2

--

--

Not Used

3

BK/WH

1551

Ground

4

D-GN

734

Inside Air Temperature Sensor Signal

5

--

--

Not Used

6

GY

720

Low Reference

Air Temperature Sensor - Lower Left


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (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 Sensor - Lower Left

Pin

Wire Color

Circuit No.

Function

A

BK

518

Lower Left Air Temperature Sensor Signal

B

YE

61

Low Reference

Air Temperature Sensor - Lower Right


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (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 Sensor - Lower Right

Pin

Wire Color

Circuit No.

Function

A

BK

520

Lower Right Air Temperature Sensor Signal

B

OG/BK

1057

Low Reference

Air Temperature Sensor - Upper Left


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Air Temperature Sensor - Upper Left

Pin

Wire Color

Circuit No.

Function

A

BK

516

Upper Left Air Temperature Sensor Signal

B

BN

718

Low Reference

Air Temperature Sensor - Upper Right


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Air Temperature Sensor - Upper Right

Pin

Wire Color

Circuit No.

Function

A

TN

517

Upper Right Air Temperature Sensor Signal

B

PU

719

Low Reference

Blower Motor


Object Number: 62488  Size: CH

Connector Part Information

  • OEM: 12084957
  • Service: 12126461
  • Description: 2-Way F Metri-Pack 280 Series (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

A

PU

65

Blower Motor Supply Voltage

B

BK

2150

Ground

Blower Motor Control Processor


Object Number: 62432  Size: CH

Connector Part Information

  • OEM: 12041429
  • Service: 12167129
  • Description: 5-Way F Metri-Pack 280 Series (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 Processor

Pin

Wire Color

Circuit No.

Function

A

BK

150

Ground

B

GY/BK

754

Blower Motor Speed Control

C

RD

442

Battery Positive Voltage

D

BK

2150

Ground

E

PU

65

Blower Motor Supply Voltage

HVAC Control Module C1


Object Number: 744296  Size: CH

Connector Part Information

  • OEM: 12110259
  • Service: 12110259
  • Description: 16-Way F Micro-Pack 100 Series (GN)

Terminal Part Information

  • Pins: A1-A3, A5-A8, B1, B3-B8
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

HVAC Control Module C1

Pin

Wire Color

Circuit No.

Function

A1

OG

1040

Battery Positive Voltage

A2

PK

739

Ignition 1 Voltage

A3

WH

1038

HVAC Class 2 Serial Data

A4

--

--

Not Used

A5

GY

8

Instrument Panel Lamp Supply Voltage

A6

BK

150

Ground

A7

D-GN

734

Inside Air Temperature Sensor Signal

A8

GY

720

Low Reference

B1

BK

516

Upper Left Air Temperature Sensor Signal

B2

--

--

Not Used

B3

TN

517

Upper Right Air Temperature Sensor Signal

B4

PU

719

Low Reference

B5

L-BU/BK

590

Driver Sunload Sensor Signal

B6

GY

1548

Passenger Sunload Sensor Signal

B7

BN

718

Low Reference

B8

BK/WH

1551

Ground

HVAC Control Module C2


Object Number: 744295  Size: CH

Connector Part Information

  • OEM: 12084944
  • Service: 12084944
  • Description: 16-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

  • Pins: A1-A4, A7, B1-B8
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

HVAC Control Module C2

Pin

Wire Color

Circuit No.

Function

A1

BK

518

Lower Left Air Temperature Sensor Signal

A2

YE

61

Low Reference

A3

BK

520

Lower Right Air Temperature Sensor Signal

A4

OG/BK

1057

Low Reference

A5-A6

--

--

Not Used

A7

GY/BK

754

Blower Motor Speed Control

A8

--

--

Not Used

B1

L-GN/BK

1647

Recirculation Door Control B

B2

PK/WH

1648

Recirculation Door Control A

B3

YE

1791

Air Temperature Door Control A

B4

D-BU

1199

Air Temperature Door Control B

B5

WH/BK

1236

Right Air Temperature Door Control A

B6

D-BU

1646

Right Air Temperature Control B

B7

TN

2273

Mode Door Control B

B8

L-GN

2275

Mode Door Control A

Mode Actuator


Object Number: 333035  Size: CH

Connector Part Information

  • OEM: 12047781
  • Service: 12101864
  • Description: 3-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Pins: A, C
  • 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

A

TN

2273

Mode Door Control B

B

--

--

Not Used

C

L-GN

2275

Mode Door Control A

Recirculation Actuator


Object Number: 704047  Size: CH

Connector Part Information

  • OEM: 12059110
  • Service: 88953271
  • Description: 2-Way F Metri-Pack 150 Series (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

A

L-GN/BK

1647

Recirculation Door Control B

B

PK/WH

1648

Recirculation Door Control A

Sunload Sensor Assembly


Object Number: 130637  Size: CH

Connector Part Information

  • OEM: 12064760
  • Service: 12085208
  • Description: 4-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Sunload Sensor Assembly

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

590

Driver Sunload Sensor Signal

B

GY

1548

Passenger Sunload Sensor Signal

C

BK

1551

Ground

D

L-GN/BK

1137

DRL Ambient Light Sensor Signal