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
Connector 4: Ambient Air Temperature Sensor
Connector 5: Blower Motor
Connector 6: Blower Motor Resistor Assembly
Connector 7: HVAC Control Module C1
Connector 8: HVAC Control Module C2
Connector 9: Mode Actuator
Connector 10: Recirculation Actuator

A/C Compressor Clutch


Object Number: 684852  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BK

450

Ground

B

D-GN

59

A/C Compressor Clutch Supply Voltage

A/C Refrigerant Pressure Sensor


Object Number: 726824  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

Pin

Wire Color

Circuit No.

Function

1

TN

5514

Low Reference

2

GY

2700

5-Volt Reference

3

OG/BK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: 6-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Air Temperature Actuator

Pin

Wire Color

Circuit No.

Function

5

D-BU

1199

Air Temperature Door Control A

6

YE

1791

Air Temperature Door Control B

7

--

--

Not Used

8

GY

597

5-Volt Reference

9

L-BU

733

Air Temperature Door Position Signal

10

TN

808

Low Reference

Ambient Air Temperature Sensor


Object Number: 635009  Size: CH

Connector Part Information

  • OEM: 12158214
  • Service: 88987920
  • Description: 2-Way F Metri-Pack 150 Series 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

D-GN/WH

636

Ambient Air Temperature Sensor Signal

B

YE

61

Low Reference

Blower Motor


Object Number: 808706  Size: CH

Connector Part Information

  • OEM: 12064749
  • Service: 12101888
  • Description: 2-Way F Metri-Pack 480 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12084595/2
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12094430/J-35616-40 (BU)

Blower Motor

Pin

Wire Color

Circuit No.

Function

A

BK

650

Ground

B

PU

65

Blower Motor Supply Voltage

Blower Motor Resistor Assembly


Object Number: 816184  Size: CH

Connector Part Information

  • OEM: 12129566
  • Service: 15306069
  • Description: 4-Way F Metri-Pack 280 Series Sealed (GY)

Terminal Part Information

  • Terminal/Tray: 12077411/2
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Blower Motor Resistor Assembly

Pin

Wire Color

Circuit No.

Function

A

TN

63

Blower Motor Medium 1 Control

B

L-BU

72

Medium 2 Blower Motor Control

C

D-BU

101

Blower Motor Supply Voltage

D

YE

60

Blower Motor Low Control

HVAC Control Module C1


Object Number: 73156  Size: CH

Connector Part Information

  • OEM: 12110088
  • Service: 12110088
  • Description: 24-Way F Micro-Pack 100 Series (GY)

Terminal Part Information

  • Pins: A1-A2, A4-A11, B1-B2, B5-B11
  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)
  • Pins: A12
  • Terminal/Tray: 12146448/19
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

HVAC Control Module C1

Pin

Wire Color

Circuit No.

Function

A1

RD/WH

440

Battery Positive Voltage

A2

BN

141

Ignition 3 Voltage

A3

--

--

Not Used

A4

D-GN/WH

762

A/C Request Signal

A5

L-BU

292

Rear Defog Switch Signal

A6

L-GN/BK

1647

Recirculation Door Control B

A7

D-BU

1199

Air Temperature Door Control A

A8

YE

1791

Air Temperature Door Control B

A9

GY

597

5-Volt Reference

A10

L-BU

733

Air Temperature Door Position Signal

A11

TN

808

Low Reference

A12

BK/WH

651

Ground

B1

GY

8

Instrument Panel Lamp Supply Voltage

B2

BN

9

Park Lamp Supply Voltage

B3-B4

--

--

Not Used

B5

TN

683

Rear Defog Indicator Supply Voltage

B6

PK/WH

1648

Recirculation Door Control A

B7

TN

2273

Mode Door Control A

B8

WH

119

Mode Door Control B

B9

GY

596

5-Volt Reference

B10

OG

708

Mode Door Position Signal

B11

TN

552

Low Reference

B12

--

--

Not Used

HVAC Control Module C2


Object Number: 556473  Size: CH

Connector Part Information

  • OEM: 15326924
  • Service: 15306174
  • Description: 8-Way F GT 280 Series (BK)

Terminal Part Information

  • Terminal/Tray: 15304711/8
  • Core/Insulation Crimp: 2/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

HVAC Control Module C2

Pin

Wire Color

Circuit No.

Function

A

OG

52

Blower Motor High Control

B

L-BU

72

Medium 2 Blower Motor Control

C

TN

63

Blower Motor Medium 1 Control

D

YE

60

Blower Motor Low Control

E-F

--

--

Not Used

G

BN

41

Ignition 3 Voltage

H

--

--

Not Used

Mode Actuator


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: 6-Way F Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Mode Actuator

Pin

Wire Color

Circuit No.

Function

5

TN

2273

Mode Door Control A

6

WH

119

Mode Door Control B

7

--

--

Not Used

8

GY

596

5-Volt Reference

9

OG

708

Mode Door Position Signal

10

TN

552

Low Reference

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

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