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: Blower Motor
Connector 5: Blower Motor Resistor Assembly
Connector 6: HVAC Control Assembly C1
Connector 7: HVAC Control Assembly C2
Connector 8: HVAC Control Assembly C3
Connector 9: Mode Actuator
Connector 10: Recirculation Actuator

A/C Compressor Clutch


Object Number: 1334534  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

Pin

Wire Color

Circuit No.

Function

A

D-GN

59

A/C Compressor Clutch Supply Voltage

B

BK

150

Ground

A/C Refrigerant Pressure Sensor


Object Number: 1581660  Size: CH

Connector Part Information

  • OEM: 15397149
  • 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

BK/WH

2751

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

  • Pins: 5, 6, 7, 9, 10
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Air Temperature Actuator

Pin

Wire Color

Circuit No.

Function

5

PK

339

Ignition 1 Voltage

6

WH/BK

1236

Auxiliary Air Temperature Door Control

7

BK/WH

550

Ground

8

--

--

Not Used

9

D-BU

1646

Auxiliary Air Temperature Door Position Signal

10

L-BU/BK

1688

5-Volt Reference

Blower Motor


Object Number: 704047  Size: CH

Connector Part Information

  • OEM: 12064749
  • Service: 12101888
  • 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

Blower Motor

Pin

Wire Color

Circuit No.

Function

A

OG

52

High Blower Motor Control

B

BN

141

Run Ignition 3 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: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor Resistor Assembly

Pin

Wire Color

Circuit No.

Function

A

TN

63

Medium Blower Motor Control (1)

B

L-BU

72

Medium 2 Blower Motor Control

C

OG

52

High Blower Motor Control

D

YE

60

Low Blower Motor Control

HVAC Control Assembly C1


Object Number: 1454407  Size: CH

Connector Part Information

  • OEM: 15416970
  • Service: 22715969
  • Description: 16-Way F Micro 64 Modular (BK)

Terminal Part Information

  • Pins: 1, 4-9, 11-16
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

HVAC Control Assembly C1

Pin

Wire Color

Circuit No.

Function

1

L-GN

2275

Mode Door Position Signal

2-3

--

--

Not Used

4

L-BU/BK

1688

5-Volt Reference

5

L-GN/BK

1647

Recirculation Door Control A

6

PK/WH

1648

Recirculation Door Control B

7

PK

339

Ignition 1 Voltage

8

PK

339

Ignition 1 Voltage

9

D-BU

1646

Auxiliary Air Temperature Door Position Signal

10

--

--

Not Used

11

D-GN

71

Vehicle Wake Up Voltage OFF

12

L-BU/BK

1688

5-Volt Reference

13

WH/BK

1236

Auxiliary Air Temperature Door Control

14

TN

2273

Door Control

15

BK/WH

550

Ground

16

BK/WH

550

Ground

HVAC Control Assembly C2


Object Number: 1592685  Size: CH

Connector Part Information

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

Terminal Part Information

  • Pins: 1-4, 6, 8-11, 13-16
  • Terminal/Tray: 15359541/4
  • Core/Insulation Crimp: M/M
  • Release Tool/Test Probe: 15381651-2/J-35616-64B (L-BU)

HVAC Control Assembly C2

Pin

Wire Color

Circuit No.

Function

1

L-GN

66

A/C Request Signal

2

L-BU

1662

Driver Heated Seat Low Temperature Indicator Control (KA1)

3

L-BU

292

Rear Defog Switch Signal

4

PK

1501

Driver Heated Seat High/Low Signal (KA1)

5

--

--

Not Used

6

TN

1686

Passenger Heated Seat Low Temperature Control (KA1)

7

--

--

Not Used

8

PK

339

Run/Crank Ignition 1 Voltage

9

BK

550

Ground

10

RD/WH

1540

Battery Positive Voltage

11

D-GN

1661

Driver Heated Seat High Temperature Indicator Control (KA1)

12

--

--

Not Used

13

WH

193

Rear Defog Relay Control

14

GY

8

Instrument Panel Lamps Dimmer Switch Signal

15

YE

1685

Passenger Heated Seat High Temperature Control (KA1)

16

PK/BK

1503

Passenger Heated Seat High/Low Signal (KA1)

HVAC Control Assembly C3


Object Number: 62469  Size: CH

Connector Part Information

  • OEM: 12064998
  • Service: 15306189
  • Description: 8-Way F Metri-Pack 280 Series (BK)

Terminal Part Information

  • Pins: A, B, E-H
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

HVAC Control Assembly C3

Pin

Wire Color

Circuit No.

Function

A

D-GN

71

Off Blower Motor Control

B

BK

550

Ground

C-D

--

--

Not Used

E

OG

52

High Blower Motor Control

F

L-BU

72

Medium 2 Blower Motor Control

G

TN

63

Medium Blower Motor Control (1)

H

YE

60

Low Blower Motor Control

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

  • Pins: 5, 6, 7, 9, 10
  • 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

5

PK

339

Ignition 1 Voltage

6

TN

2273

Door Control

7

BK/WH

550

Ground

8

--

--

Not Used

9

L-GN

2275

Mode Door Position Signal

10

L-BU/BK

1688

5-Volt 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: 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 Control A

B

PK/WH

1648

Recirculation Control B