GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Blower Motor Resistor Assembly
Table 4: Blower Motor
Table 5: HVAC Control Assembly C1
Table 6: HVAC Control Assembly C2
Table 7: Recirculation Actuator

A/C Compressor Clutch


Object Number: 684852  Size: CH

Connector Part Information

    • 12162017
    • 2-Way F Metri-Pack 150 Series Sealed (GY)

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: 726824  Size: CH

Connector Part Information

    • 15344137
    • 3-Way F GT 150 Sealed 5.2 (BK)

Pin

Wire Color

Circuit No.

Function

1

BK

2751

Low Reference

2

GY

2700

5V Reference

3

RD/BK

380

A/C Refrigerant Pressure Sensor Signal

Blower Motor Resistor Assembly


Object Number: 816184  Size: CH

Connector Part Information

    • 12129566
    • 4-Way F Metri-Pack 280 Series Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

TN

63

Blower Motor Medium 1 Control

B

L- BU

72

Blower Motor Medium 1 Control

C

OR

52

Blower Motor Supply Voltage

D

YE

60

Low Blower Motor Control

Blower Motor


Object Number: 808706  Size: CH

Connector Part Information

    • 12064749
    • 2-Way F Metri-Pack 480 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

550

Ground

B

OR

52

Blower Motor Supply Voltage

HVAC Control Assembly C1


Object Number: 556473  Size: CH

Connector Part Information

    • 15326924
    • 8-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

OR

52

High Blower Motor 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

HVAC Control Assembly C2


Object Number: 73151  Size: CH

Connector Part Information

    • 12064799
    • 12-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

BN

141

Ignition 3 Voltage

C

L-GN

66

A/C Request Signal

D

--

--

Not Used

E

L-GN/BK

1647

Recirculation Door Control B

F

PK/WH

1648

Recirculation Door Control A

G

WH

193

Rear Defog Relay Control

H

--

--

Not Used

J

L- BU

292

Rear Defog Switch Signal

K

BK

550

Ground

L

GY

8

Instrument Panel Lamp Supply Voltage

M

--

--

Not Used

Recirculation Actuator


Object Number: 704047  Size: CH

Connector Part Information

    • 12059110
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PK/WH

1648

Recirculation Door Control A

B

L-GN/BK

1647

Recirculation Door Control B