GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2003 🢒 SSR 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 HVAC Connector End Views
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Air Temperature Actuator
Table 4: Blower Motor
Table 5: Blower Motor Resistor Assembly
Table 6: Evaporator Temperature Sensor
Table 7: HVAC Control Module C1
Table 8: HVAC Control Module C2
Table 9: Mode Actuator
Table 10: Recirculation Actuator

A/C Compressor Clutch


Object Number: 684807 Size: CH

Connector Part Information
    • 12110293
    • 3-Way F Metri-Pack 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

350

Ground

B

D-GN

59

A/C Compressor Clutch Supply Voltage

C

Not Used

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

Signal Ground

2

GY

2700

A/C Pressure Sensor 5-volt Reference

3

RD/BK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator


Object Number: 281207 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5

BN

341

Run Ignition 3 Voltage

6

D-BU

1199

Air Temperature Door Control

7

BK/WH

751

Signal Ground

8

--

--

Not Used

9

L-BU

733

Air Temperature Door Position Signal

10

D-BU/BK

1688

5-volt Reference

Blower Motor


Object Number: 826317 Size: CH

Connector Part Information
    • 7123-6020
    • 2-Way F Unsealed (NA)

Pin

Wire Color

Circuit No.

Function

1

RD

542

Battery Positive Voltage

2

OG

52

High Blower Motor Control

Blower Motor Resistor Assembly


Object Number: 697053 Size: CH

Connector Part Information
    • 12129565
    • 4-Way F Metri-Pack 280 Series, Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

TN

63

Medium Blower Motor Control (1)

B

L-BU

72

Medium 2 Blower Motor Control

L-BU

72

Medium 2 Blower Motor Control

C

OG

52

High Blower Motor Control

D

YE

60

Low Blower Motor Control

Evaporator Temperature Sensor


Object Number: 1283885 Size: CH

Connector Part Information
    • 174921-1
    • 3-Way F Metri-Pack Mixed Series (WH)

Pin

Wire Color

Circuit No.

Function

1

D-GN/WH

762

A/C Request Signal

2

GY

6137

A/C Request Signal

3

BK

2250

Ground

HVAC Control Module C1


Object Number: 697022 Size: CH

Connector Part Information
    • 174046-2
    • 16-Way F Metri-Pack Mixed Series (BK)

Pin

Wire Color

Circuit No.

Function

1

D-BU

1646

Passenger Air Temperature Door Position Signal

2-4

Not Used

5

BN/WH

230

Instrument Panel Lamp Dimming Control

6-8

Not Used

9

WH/BK

1236

Passenger Air Temperature Door Control

10

D-BU

1199

Air Temperature Door Control

11

L-BU

292

Rear Window Defrost Signal

12

D-GN/WH

762

A/C Request Signal

13

PK/WH

1648

Close Recirculation Door Control

14

L-GN/BK

1647

Open Recirculation Door Control

15

D-BU/BK

1688

5-volt Reference

16

L-BU

733

Air Temperature Door Position Signal

HVAC Control Module C2


Object Number: 401382 Size: CH

Connector Part Information
    • 174045-2
    • 12-Way F Metri-Pack Mixed Series (BK)

Pin

Wire Color

Circuit No.

Function

1

OG

52

High Blower Motor Control

2

L-BU

72

Medium 2 Blower Motor Control

3

OG

52

High Blower Motor Control

4

L-BU

72

Medium 2 Blower Motor Control

5

BK

2250

Ground

6

TN

63

Medium Blower Motor Control (1)

7

BK

2250

Ground

8

YE

60

Low Blower Motor Control

9

BK

2250

Ground

10

BN

341

Run Ignition 3 Voltage

11

Not Used

12

OG

4340

Battery Positive Voltage

Mode Actuator


Object Number: 281207 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5

BN

341

Run Ignition 3 Voltage

6

WH/BK

1236

Passenger Air Temperature Door Control

7

BK/WH

751

Signal Ground

8

--

--

Not Used

9

D-BU

1646

Passenger Air Temperature Door Position Signal

10

D-BU/BK

1688

5-volt Reference

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

Close Recirculation Door Control

B

L-GN/BK

1647

Open Recirculation Door Control