GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Astro - 4WD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 HVAC Connector End Views

A/C Compressor Clutch


Object Number: 684852 Size: CH

Connector Part Information
    • 12162017
    • 2-Way F Metri-Pack 150 Series, Sealed (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

850

Ground

B

DK GRN

59

A/C Compressor Clutch Supply Voltage

A/C High Pressure Switch


Object Number: 38560 Size: CH

Connector Part Information
    • 12162438
    • 2-Way F Metri-Pack 150 Series, Pull-To-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN/WHT

762

A/C Request Signal

B

LT GRN

66

A/C Request Signal

A/C Low Pressure Switch


Object Number: 537107 Size: CH

Connector Part Information
    • 12052644
    • 2-Way F Metri-Pack 150 Series, Sealed (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

850

Ground

B

DK GRN

603

A/C Low Pressure Switch Signal

Air Temperature Actuator


Object Number: 281207 Size: CH

Connector Part Information
    • 12040953
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

1050

Ground

8

LT BLU

733

Air Temperature Door Control

9

--

--

Not Used

10

BRN

141

Ignition 3 Voltage

Blower Motor


Object Number: 62489 Size: CH

Connector Part Information
    • 12066681
    • 2-Way F Metri-Pack 630 Series, Sealed, Pull-To-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

65

Blower Motor Supply Voltage

B

BLK

350

Ground

Blower Motor - A/C Auxiliary C1


Object Number: 35348 Size: CH

Connector Part Information
    • 12004267
    • 1-Way F 56 Series, Lock (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1250

Ground

Blower Motor - A/C Auxiliary C2


Object Number: 309374 Size: CH

Connector Part Information
    • 02977976
    • 1-Way F 56 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1052

Auxiliary Blower Motor Supply Voltage

Blower Motor - Heater Auxiliary C1


Object Number: 35348 Size: CH

Connector Part Information
    • 12004267
    • 1-Way F 56 Series, Lock Type(BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

1150

Ground

Blower Motor - Heater Auxiliary C2


Object Number: 95764 Size: CH

Connector Part Information
    • 12040673
    • 1-Way F Metri-Pack 800 Series, Insert Molded (BLK)

Pin

Wire Color

Circuit No.

Function

1

YEL

1172

Auxiliary Blower Motor Supply Voltage

Blower Motor Resistor - A/C Auxiliary


Object Number: 284534 Size: CH

Connector Part Information
    • 02977940
    • 3-Way F 56 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

1072

Auxiliary Blower Motor Medium Speed Control

B

ORN

1052

Auxiliary Blower Motor Supply Voltage

ORN

1052

Auxiliary Blower Motor Supply Voltage

C

YEL

1176

Auxiliary Blower Motor Low Speed Control

Blower Motor Resistor Assembly


Object Number: 535914 Size: CH

Connector Part Information
    • 12160746
    • 6-Way F Metri-Pack 280 Series, Flexlock, Sealed (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

340

Battery Positive Voltage

B

ORN

52

High Blower Motor Control

C

BLK

350

Ground

D

TAN

63

Medium 1 Blower Motor Control

E

YEL

60

Low Blower Motor Control

F

LT BLU

72

Medium 2 Blower Motor Control

Blower Motor Resistor - Heater Auxiliary


Object Number: 284534 Size: CH

Connector Part Information
    • 12077384
    • 3-Way F 56 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

1925

Auxiliary Blower Motor Medium Speed Control

B

YEL

1172

Auxiliary Blower Motor Supply Voltage

WHT

1924

Auxiliary Blower Motor High Speed Control

C

DK BLU

1926

Auxiliary Blower Motor Low Speed Control

Blower Motor Switch - A/C Auxiliary


Object Number: 73155 Size: CH

Connector Part Information
    • 12089287
    • 8-Way F Metri-Pack 280 Series (WHT)

Pin

Wire Color

Circuit No.

Function

A

ORN

1052

Auxiliary Blower Motor Supply Voltage

B

LT BLU

1072

Auxiliary Blower Motor Medium Speed Control

C-D

--

--

Not Used

E

BLK

750

Ground

F

YEL

1176

Auxiliary Blower Motor Low Speed Control

G

ORN

1923

Auxiliary HVAC Switch Supply Voltage

H

GRY

8

Instrument Panel Lamp Supply Voltage-1

Blower Motor Switch - Heater Auxiliary


Object Number: 284533 Size: CH

Connector Part Information
    • 12162066
    • 8-Way F Metri-Pack 280 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

WHT

1924

Auxiliary Blower Motor High Speed Control

B

RED

1925

Auxiliary Blower Motor Medium Speed Control

C

GRY/BLK

1596

Coolant Bypass Solenoid Control

D

--

--

Not Used

E

BLK

750

Ground

F

DK BLU

1926

Auxiliary Blower Motor Low Speed Control

G

ORN

1923

Auxiliary HVAC Switch Supply Voltage

H

GRY

8

Instrument Panel Lamp Supply Voltage-1

Coolant Bypass Valve Solenoid


Object Number: 635009 Size: CH

Connector Part Information
    • 12052641
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY/BLK

1596

Coolant Bypass Solenoid Control

B

BLK

850

Ground

HVAC Control Assembly C1


Object Number: 62450 Size: CH

Connector Part Information
    • 12052856
    • 4-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

1442

Battery Positive Voltage

B

BRN

141

Ignition 3 Voltage

C

BLK

1050

Ground

D

PPL

293

Rear Defog Element Supply Voltage

HVAC Control Assembly C2


Object Number: 62469 Size: CH

Connector Part Information
    • 12064998
    • 8-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

60

Low Blower Motor Control

B

TAN

63

Medium 1 Blower Motor Control

C

LT BLU

72

Medium 2 Blower Motor Control

D

ORN

52

High Blower Motor Control

E

BRN

141

Ignition 3 Voltage

F

LT BLU

733

Air Temperature Door Control

G

WHT

119

Blower Motor Switch Supply Voltage

H

LT GRN

66

A/C Request Signal

HVAC Control Assembly C3


Object Number: 68737 Size: CH

Connector Part Information
    • 12129489
    • 3-Way F Metri-Pack 280 Series, Flexlock (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

119

Blower Motor Switch Supply Voltage

B

BLK

1050

Ground

C

GRY

8

Instrument Panel Lamp Supply Voltage-1