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: Air Temperature Sensor - Lower
Connector 5: Air Temperature Sensor - Upper
Connector 6: Ambient Air Temperature Sensor
Connector 7: Blower Motor
Connector 8: Blower Motor Control Module
Connector 9: HVAC Control Module C1
Connector 10: HVAC Control Module C2
Connector 11: Mode Actuator
Connector 12: Recirculation Actuator
Connector 13: Sunload Sensor

A/C Compressor Clutch


Object Number: 1334534  Size: CH

Connector Part Information

  • OEM: 12162017
  • Service: 12101937
  • Description: 2-Way F GT 150 Series Sealed BASE 12 (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: 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

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 B

6

YE

1791

Air Temperature Door Control B

7

--

--

Not Used

8

GY

597

5-Volt Reference

9

L-BU

733

Driver Air Temperature Door Position Signal

10

TN

808

Low Reference

Air Temperature Sensor - Lower


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 - Lower

Pin

Wire Color

Circuit No.

Function

A

L-GN

405

Lower Air Temperature Sensor Signal

B

TN

476

Low Reference

Air Temperature Sensor - Upper


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

Pin

Wire Color

Circuit No.

Function

A

BN

404

Upper Air Temperature Sensor Signal

B

TN

470

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

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

WH

374

Auxiliary Blower Motor Speed Control

B

PU

65

Blower Motor Supply Voltage

Blower Motor Control Module


Object Number: 62432  Size: CH

Connector Part Information

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

Terminal Part Information

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

Blower Motor Control Module

Pin

Wire Color

Circuit No.

Function

A

BK

650

Ground

B

GY/BK

754

Blower Motor Speed Request Signal

C

RD/BK

442

Battery Positive Voltage

D

WH

374

Auxiliary Blower Motor Speed Control

E

PU

65

Blower Motor Supply Voltage

HVAC Control Module C1


Object Number: 850856  Size: CH

Connector Part Information

  • OEM: 15429807
  • Service: 19153103
  • Description: 16-Way F Micro 64 Series (GN)

Terminal Part Information

  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

HVAC Control Module C1

Pin

Wire Color

Circuit No.

Function

1

TN/WH

1704

Low Reference

2

TN

552

Low Reference

3

TN/BK

2274

Recirculation Door Control

4

D-GN

1614

Recirculation Door Control

5

WH

119

Mode Door Control

6

TN

2273

Mode Door Control

7

YE

1791

Air Temperature Door Control B

8

D-BU

1199

Air Temperature Door Control B

9

GY/BK

754

Blower Motor Speed Request Signal

10

TN

808

Low Reference

11

GY

598

5-Volt Reference

12

GY

596

5-Volt Reference

13

GY

597

5-Volt Reference

14

PU

1838

Recirculation Door Position Signal

15

OG

708

Mode Door Position Signal

16

L-BU

733

Driver Air Temperature Door Position Signal

HVAC Control Module C2


Object Number: 1592685  Size: CH

Connector Part Information

  • OEM: 15429805
  • Service: 89047195
  • Description: 16-Way F Micro 64 Series (GY)

Terminal Part Information

  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

HVAC Control Module C2

Pin

Wire Color

Circuit No.

Function

1

D-GN

5060

Low Speed GMLAN Serial Data

2-3

--

--

Not Used

4

TN

470

Low Reference

5

TN

476

Low Reference

6

BK/WH

651

Ground

7

BN

141

Ignition 3 Voltage

8

RD/WH

440

Battery Positive Voltage

9

D-GN

5060

Low Speed GMLAN Serial Data

10-11

--

--

Not Used

12

BN

404

Upper Air Temperature Sensor Signal

13

L-GN

405

Lower Air Temperature Sensor Signal

14-15

--

--

Not Used

16

GY

8

Instrument Panel Lamp Supply Voltage

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

6

WH

119

Mode Door Control

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: 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)

Recirculation Actuator

Pin

Wire Color

Circuit No.

Function

5

D-GN

1614

Recirculation Door Control

6

TN/BK

2274

Recirculation Door Control

7

--

--

Not Used

8

GY

598

5-Volt Reference

9

PU

1838

Recirculation Door Position Signal

10

TN/WH

1704

Low Reference

Sunload Sensor


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

Pin

Wire Color

Circuit No.

Function

A

L-BU/BK

590

Driver Sunload Sensor Signal

B

GY

1548

Passenger Sunload Sensor Signal

C

YE/BK

1138

DRL Ambient Light Sensor Low Reference

D

L-GN/BK

1137

DRL Ambient Light Sensor Signal