GM Service Manual Online
For 1990-2009 cars only
Connector 1: A/C Compressor Clutch (C60)
Connector 2: A/C Refrigerant Pressure Sensor (C60)
Connector 3: Air Temperature Actuator - Left
Connector 4: Air Temperature Actuator - Right
Connector 5: Blower Motor
Connector 6: Blower Motor High Speed Relay
Connector 7: Blower Motor Resistor Assembly
Connector 8: Evaporator Temperature Sensor (C60)
Connector 9: HVAC Control Module X1
Connector 10: HVAC Control Module X2
Connector 11: HVAC Control Module X3
Connector 12: Mode Actuator
Connector 13: Recirculation Actuator

A/C Compressor Clutch (C60)


Object Number: 537107  Size: CH

Connector Part Information

  • OEM: 12052644
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (GY)

A/C Compressor Clutch (C60)

Pin

Wire Color

Circuit No.

Function

A

0.5 BK

250

Ground

B

0.5 D-GN

59

A/C Compressor Clutch Supply Voltage

A/C Refrigerant Pressure Sensor (C60)


Object Number: 1519475  Size: CH

Connector Part Information

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

A/C Refrigerant Pressure Sensor (C60)

Pin

Wire Color

Circuit No.

Function

1

0.35 TN

5514

Low Reference

2

0.35 GY

2700

5-Volt Reference 3

3

0.35 OG/BK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator - Left


Object Number: 258172  Size: CH

Connector Part Information

  • OEM: 12064982
  • Description: 5-Way F Micro-Pack 100 Series (BK)

Air Temperature Actuator - Left

Pin

Wire Color

Circuit No.

Function

1

0.35 YE

1791

Low Reference

2

0.35 L-BU

733

Air Temperature Door Position Signal

3

0.35 L-BU/BK

1688

5-Volt Reference

4

0.35 D-BU

1199

Air Temperature Door Control

5

0.35 L-GN/BK

1647

Air Temperature Door Control

Air Temperature Actuator - Right


Object Number: 258172  Size: CH

Connector Part Information

  • OEM: 12064982
  • Description: 5-Way F Micro-Pack 100 Series (BK)

Air Temperature Actuator - Right

Pin

Wire Color

Circuit No.

Function

1

0.35 YE

1791

Low Reference

2

0.35 D-BU

1646

Air Temperature Door Position Signal

3

0.35 L-BU/BK

1688

5-Volt Reference

4

0.35 L-GN/BK

1647

Air Temperature Door Control

5

0.35 TN

2273

Mode Door Control

Blower Motor


Object Number: 1658766  Size: CH

Connector Part Information

  • OEM: 7283-5590-40
  • Description: 2-Way F YESC/USCAR Class III Series (BK)

Blower Motor

Pin

Wire Color

Circuit No.

Function

1

3.0 OG

52

Blower Motor High Control

2

3.0 BN

141

Ignition 3 Voltage

Blower Motor High Speed Relay


Object Number: 281199  Size: CH

Connector Part Information

  • OEM: 12034003
  • Description: 5-Way F Special Metri-Pack 630 Conn (BK)

Blower Motor High Speed Relay

Pin

Wire Color

Circuit No.

Function

1

3.0 BK

2050

Ground

2

3.0 BN

141

Ignition 3 Voltage

3

--

--

Not Used

4

3.0 OG

52

Blower Motor High Control

5

3.0 OG

52

Blower Motor High Control

Blower Motor Resistor Assembly


Object Number: 62451  Size: CH

Connector Part Information

  • OEM: 12059296
  • Description: 5-Way F Metri-Pack 480 Series (RD)

Blower Motor Resistor Assembly

Pin

Wire Color

Circuit No.

Function

A

3.0 OG

52

Blower Motor High Control

B

2.0 YE

60

Blower Motor Low Control

C

2.0 TN

63

Blower Motor Medium 1 Control

D

2.0 L-BU

72

Medium 2 Blower Motor Control

E

3.0 OG

52

Blower Motor High Control

Evaporator Temperature Sensor (C60)


Object Number: 82383  Size: CH

Connector Part Information

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

Evaporator Temperature Sensor (C60)

Pin

Wire Color

Circuit No.

Function

A

0.35 YE

1791

Low Reference

B

0.35 GY

6137

Evaporator Core Temperature Sensor Signal

HVAC Control Module X1


Object Number: 1567536  Size: CH

Connector Part Information

  • OEM: 15118642
  • Description: 5-Way F (BK)

HVAC Control Module X1

Pin

Wire Color

Circuit No.

Function

1

3.0 OG

52

Blower Motor High Control

2

2.0 L-BU

72

Medium 2 Blower Motor Control

3

2.0 TN

63

Blower Motor Medium Control (1)

4

2.0 YE

60

Blower Motor Low Control

5

2.0 BK

550

Ground

HVAC Control Module X2


Object Number: 684939  Size: CH

Connector Part Information

  • OEM: 15336594
  • Description: 12-Way F Micro-Pack 100 Series (GY)

HVAC Control Module X2

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

0.35 RD/WH

1540

Battery Positive Voltage

C

0.35 BK

550

Ground

D

0.35 GY

8

Instrument Panel Lamp Supply Voltage

E

--

--

Not Used

F

0.35 WH

193

Rear Defog Relay Control

G

0.35 D-GN/WH

762

A/C Request Signal (C60)

H

--

--

Not Used

J

0.35 L-BU

292

Rear Defog Switch Signal

K

0.5 PK

339

Ignition 1 Voltage

L

0.35 BK/WH

651

Ground

M

--

--

Not Used

HVAC Control Module X3


Object Number: 73151  Size: CH

Connector Part Information

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

HVAC Control Module X3

Pin

Wire Color

Circuit No.

Function

A

0.35 YE

1791

Low Reference

B

0.35 L-GN/BK

2276

Defrost Door Position Signal

C

0.35 GY

6137

Evaporator Core Temperature Sensor Signal (C60)

D

0.35 D-BU

1646

Air Temperature Door Position Signal

E

0.35 L-BU

733

Air Temperature Door Position Signal

F

0.35 L-BU/BK

1688

5-Volt Reference

G

0.35 D-GN

1614

Recirculation Door Control

H

0.35 TN/BK

2274

Recirculation Door Control Circuit

J

0.35 L-GN

2275

Mode Door Control

K

0.35 TN

2273

Mode Door Control

L

0.35 L-GN/BK

1647

Air Temperature Door Control

M

0.35 D-BU

1199

Air Temperature Door Control

Mode Actuator


Object Number: 258172  Size: CH

Connector Part Information

  • OEM: 12064982
  • Description: 5-Way F Micro-Pack 100 Series (BK)

Mode Actuator

Pin

Wire Color

Circuit No.

Function

1

0.35 YE

1791

Low Reference

2

0.35 L-GN/BK

2276

Defrost Door Position Signal

3

0.35 L-BU/BK

1688

5-Volt Reference

4

0.35 TN

2273

Mode Door Control

5

0.35 L-GN

2275

Mode Door Control

Recirculation Actuator


Object Number: 258172  Size: CH

Connector Part Information

  • OEM: 12064982
  • Description: 5-Way F Micro-Pack 100 Series (BK)

Recirculation Actuator

Pin

Wire Color

Circuit No.

Function

1-3

--

--

Not Used

4

0.35 D-GN

1614

Recirculation Door Control

5

0.35 TN/BK

2274

Recirculation Door Control Circuit