GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch Coil
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Ambient Air Temperature Sensor
Table 4: Auxiliary Blower Motor
Table 5: Auxiliary Blower Motor Resistor
Table 6: Auxiliary Coolant Bypass Pump
Table 7: Auxiliary Coolant Pump Switch
Table 8: Auxiliary Heater-A/C Control Connector C1 (Temperature Control)
Table 9: Auxiliary Heater-A/C Control Connector C2 (Auxiliary Blower Switch)
Table 10: Auxiliary Temperature Valve Actuator
Table 11: Blower Motor Resistor
Table 12: Electric Air Inlet Actuator
Table 13: Electric Slave Actuator
Table 14: Heater-A/C Control Connector C1 (Blower Motor Switch)
Table 15: Heater-A/C Control Connector C2 (Compressor and Air Delivery Control)
Table 16: Rear Window Wiper/Washer and Multi-function Switch Connector C2 (Auxiliary Blower Switch)

A/C Compressor Clutch Coil


Object Number: 280759  Size: CH

Connector Part Information

    • 1216-2017
    • 2-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

1050

Ground

B

DK GRN

59

A/C Compressor Clutch Solenoid Feed

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 1211-0192
    • 3-Way F Metri-Pack 150 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

2751

A/C Pressure Return

B

GRY

2700

5 Volt Reference

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Ambient Air Temperature Sensor


Object Number: 35437  Size: CH

Connector Part Information

    • 1205-2641
    • 2-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

735

Outside Ambient Temperature Sensor Signal

B

BLK

1550

Ground

Auxiliary Blower Motor


Object Number: 523591  Size: CH

Connector Part Information

    • 1203-3769
    • 2-Way F Metri-Pack 630 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1052

Auxiliary Blower Motor Output

B

BRN

641

Fused Output

Auxiliary Blower Motor Resistor


Object Number: 62450  Size: CH

Connector Part Information

    • 1205-2856
    • 4-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

ORN

1052

Auxiliary Blower Motor Output

C

YEL

1176

Auxiliary Blower Resistor Low Output

D

LT BLU

1072

Auxiliary Blower Resistor Medium Output

Auxiliary Coolant Bypass Pump


Object Number: 302000  Size: CF

Connector Part Information

    • 12084126
    • 2-Way F Metri-Pack 150 Series Sealed(BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

1050

Ground

2

YEL

61

Low Reference

Auxiliary Coolant Pump Switch


Object Number: 302000  Size: CF

Connector Part Information

    • 12052641
    • 2-Way F Metri-Pack 150 Series Sealed(BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

1239

Ignition 1 Voltage

B

YEL

61

Low Reference

Auxiliary Heater-A/C Control Connector C1 (Temperature Control)


Object Number: 40427  Size: CH

Connector Part Information

    • 1206-4978
    • 6-Way F Micro-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

1

BRN

641

Fused Input Feed

2

GRY

8

Interior Lamps Dimming Input Feed

3

GRY

778

Auxiliary Blower Switch Control Input Feed

4

LT BLU

733

Air Temperature Valve Position Sensor Output Signal

5

BLK

955

Auxiliary Temperature Output Feed

6

BLK

850

Ground

Auxiliary Heater-A/C Control Connector C2 (Auxiliary Blower Switch)


Object Number: 62456  Size: CH

Connector Part Information

    • 1206-4752
    • 6-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

BLK

1750

Ground

D

YEL

1176

Auxiliary Blower Resistor Low Output

E

LT BLU

1072

Auxiliary Blower Resistor Medium Output

F

ORN

1052

Auxiliary Blower Motor Output

Auxiliary Temperature Valve Actuator


Object Number: 281207  Size: CH

Connector Part Information

    • 1204-0953
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

850

Ground

8

BLK

955

Auxiliary Temperature Input Feed

9

--

--

Not Used

10

BRN

641

Fused Input Feed

Blower Motor Resistor


Object Number: 73146  Size: CH

Connector Part Information

    • 1205-2854
    • 7-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

63

Blower Switch Input M1 Position

B

YEL

60

Blower Switch Input Low Position

C

PPL

73

Blower Switch Input M3 Position

D

LT BLU

72

Blower Switch Input M2 Position

E

BLK

150

Ground

F

ORN

52

Blower Switch Input High Position

G

ORN

40

Fused Input Feed

Electric Air Inlet Actuator


Object Number: 280764  Size: CH

Connector Part Information

    • 1206-4993
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5

BRN

241

Fused Input Feed

6

LT BLU/BLK

684

Air Inlet Valve Signal Input

7

BLK

150

Ground

8-10

--

--

Not Used

Electric Slave Actuator


Object Number: 280764  Size: CH

Connector Part Information

    • 1206-4993
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

150

Ground

8

LT BLU

733

Temperature Valve Position Signal Input

9

--

--

Not Used

10

BRN

241

Fused Input Feed

Heater-A/C Control Connector C1 (Blower Motor Switch)


Object Number: 62469  Size: CH

Connector Part Information

    • 1206-4998
    • 8-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

119

Heater-A/C ON/OFF Signal Output

B

BRN

41

Fused Input Feed

C

ORN

52

Blower Switch High Position Output

D

--

--

Not Used

E

PPL

73

Blower Switch M3 Position Output

F

LT BLU

72

Blower Switch M2 Position Output

G

TAN

63

Blower Switch M1 Position Output

H

YEL

60

Blower Switch Low Position Output

Heater-A/C Control Connector C2 (Compressor and Air Delivery Control)


Object Number: 73151  Size: CH

Connector Part Information

    • 1206-4799
    • 12-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

119

Heater-A/C ON/OFF Signal Input

B

DK GRN/WHT

762

A/C Request Signal Output

C

BRN

241

Fused Input Feed

D

WHT

193

Rear Defogger Relay Output-Coil

E

ORN

640

Fused Input Feed

F

--

--

Not Used

G

LT BLU

733

Temperature Control Position Signal Output

H

LT BLU/BLK

684

Air Inlet Valve Signal Output

J

GRY

8

Interior Lamps Dimming Input Feed

K

BLK

150

Ground

L-M

--

--

Not Used

Rear Window Wiper/Washer and Multi-function Switch Connector C2 (Auxiliary Blower Switch)


Object Number: 73232  Size: CH

Connector Part Information

    • 1216-2455
    • 8-Way F Metri-Pack 280 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

YEL

1176

Auxiliary Blower Motor Resistor Low Output

B

ORN

1052

Auxiliary Blower Motor Resistor High Output

C

LT BLU

1072

Auxiliary Blower Motor Resistor Medium Output

D

--

--

Not Used

E

BLK

1450

Ground

F

--

--

Not Used

G

GRY

778

Auxiliary Blower Switch Control Output Feed

H

GRY

8

Interior Lamps Dimming Input Feed