GM Service Manual Online
For 1990-2009 cars only

HVAC Connector End Views CJ4

Table 1: A/C Compressor Clutch Coil
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Blower Motor Control Module
Table 4: Air Temperature Actuator-Front
Table 5: Air Temperature Actuator-Rear
Table 6: Front HVAC Control Assembly
Table 7: Ambient Outside Air Temperature Sensor
Table 8: Vacuum/Electric Solenoid
Table 9: Rear HVAC Control Assembly
Table 10: Rear Mode Actuator
Table 11: Two Stage Orifice Relay
Table 12: Two Stage Orifice Solenoid

A/C Compressor Clutch Coil


Object Number: 280759  Size: CH

Connector Part Information

    • 12162017
    • 2-Way F Metric-Pack 150 Series

Pin

Wire Color

Circuit No.

Function

A

BLK

1050

Ground

B

DK GRN

59

A/C Compressor Clutch Supply Voltage

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • 12110192
    • 3-Way F Metric-Pack 150 Series Pull to Seat (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

2751

Low Reference

B

GRY

474

5 Volt Reference

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Blower Motor Control Module


Object Number: 73229  Size: CH

Connector Part Information

    • 12129566
    • 4-Way F Metric-Pack 280 Series Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

ORN

40

Battery Positive Voltage

C

GRY/BLK

754

Blower Motor Speed Control

D

--

--

Not Used

Air Temperature Actuator-Front


Object Number: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

1450

Ground

8

DK BLU

2210

Front Temperature Control Signal

9

--

--

Not Used

10

BRN

41

Ignition 3 Voltage

Air Temperature Actuator-Rear


Object Number: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

1450

Ground

8

YEL

2214

Rear Control Assembly Temperature Selector Control Signal

9

--

--

Not Used

10

BRN

41

Ignition 3 Voltage

Front HVAC Control Assembly


Object Number: 524759  Size: CH

Connector Part Information

    • 12045470
    • 32-Way F Metric-Pack 100 Series (NAT)

Pin

Wire Color

Circuit No.

Function

C1-C4

--

--

Not Used

C5

BRN

41

Ignition 3 Voltage

C6

--

--

Not Used

C7

DK BLU

2210

Front Temperature Control Signal

C8

--

--

Not Used

C9

ORN

2212

Rear A/C Led Control

C10

--

--

Not Used

C11

GRY/BLK

754

Blower Speed Control Signal

C12

ORN

640

Battery Positive Voltage

C13

WHT

2258

Two Stage Orifice Solenoid Control

C15

DK GRN

2211

Rear Fan Up/Down Request

C16

GRY

8

Instrument Panel Lamp Supply Voltage-1

D1

YEL

61

Low Reference

D2

--

--

Not Used

D3

LT GRN/BLK

735

Ambient Air Temperature Sensor Signal

D4-D5

--

--

Not Used

D6

PNK

2216

Rear AC/RECIRC Request

D7

DK BLU

2213

Rear RECIRC Led Control

D8

TAN

363

Recirculation Mode Valve Solenoid Control

D9

PPL

361

Mix-blend Mode Valve Solenoid Control

D10

RED

362

Lower Mode Valve Solenoid Control

D11

LT GRN/BLK

366

Defrost Mode Valve Solenoid Control

D12

WHT

1038

HVAC Class 2 Serial Data

D13

LT BLU

706

Upper Mode Valve Solenoid Control

D14

--

--

Not Used

D15

WHT

193

Rear Defog Relay Control

D16

--

--

Not Used

Ambient Outside Air Temperature Sensor


Object Number: 333041  Size: CH

Connector Part Information

    • 12052641
    • 2-Way M Metric-Pack 100 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

734

Ambient Air Temperature Sensor Signal

B

YEL

61

Low Reference

Vacuum/Electric Solenoid


Object Number: 40427  Size: CH

Connector Part Information

    • 12064978
    • 6-Way F Metric-Pack 100 Series (GRY)

Pin

Wire Color

Circuit No.

Function

1

LT GRN/BLK

366

Defrost Mode Valve Solenoid Control

2

RED

362

Lower Mode Valve Solenoid Control

3

PPL

361

Mix-blend Mode Valve Solenoid Control

4

TAN

363

Recirculation Mode Valve Solenoid Control

5

LT BLU

706

Upper Mode Valve Solenoid Control

6

BRN

41

Ignition 3 Voltage

Rear HVAC Control Assembly


Object Number: 73151  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

ORN

2212

Rear A/C Control

B

PNK

2216

Rear A/C Request

C

BRN

41

Fused Ignition Feed

D - F

-

-

Not Used

G

YEL

2214

Rear Temp Control

H

DK GRN

2211

Rear Fan Up/Down Request

J

GRY

8

Interior Lamp Dim Signal

K

BLK

1450

Ground

L

RED

2215

Rear Air Flow Selector Control

M

DK BLU

2213

Rear Recirculation Control

Rear Mode Actuator


Object Number: 280764  Size: CH

Connector Part Information

    • 12064993
    • 6-Way Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5 - 6

-

-

Not Used

7

BLK

1450

Ground

8

RED

2215

Air Flow Selector Control

9

-

-

Not Used

10

BRN

41

Fused Ignition Feed

Two Stage Orifice Relay


Object Number: 309518  Size: CH

Connector Part Information

    • 12129715
    • 6 Way F Metric-Pack 280 FlexLock (GRY)

Pin

Flexlock

Wire Color

Circuit No.

Function

A1

WHT

2258

Dual Stage Orifice Relay Output-Coil

A2

BLK/WHT

2256

Dual Stage Orifice Solenoid Feed

B1-B2

--

--

Not Used

C1

BRN

41

Fuse Output-IGN 3

C2

BRN

41

Fuse Output-IGN 3

Two Stage Orifice Solenoid


Object Number: 333041  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

2256

Two Stage Orifice Solenoid Feed

B

BLK

1450

Ground