GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1999 🢒 LeSabre 🢒 Body and Accessories 🢒 Lighting Systems 🢒 HVAC Connector End Views
Table 1: A/C Clutch
Table 2: A/C Clutch Relay
Table 3: A/C Pressure Sensor
Table 4: Blower Control Module C1
Table 5: Blower Control Module C2
Table 6: Heater and A/C Control (Buick / Oldsmobile with CJ2)
Table 7: Heater and A/C Control (Pontiac With C68)
Table 8: Heater and A/C Programmer (Pontiac)
Table 9: Heater and A/C Programmer (Buick with CJ2)
Table 10: Heater and A/C Programmer (Oldsmobile with CJ2)
Table 11: Inside Air Temperature Sensor
Table 12: LH Sunload Temperature Sensor (Buick)
Table 13: LH Sunload Temperature Sensor (Oldsmobile)
Table 14: Passenger Temperature Control (Buick with CJ2)
Table 15: Passenger Temperature Control (Oldsmobile with CJ2)
Table 16: RH Sunload Temperature Sensor (Buick)
Table 17: RH Sunload Temperature Sensor (Oldsmobile)
Table 18: Sunload Temperature Sensor (Pontiac)

A/C Clutch


Object Number: 35437 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Compressor Clutch Solenoid Feed

B

BLK

1450

Ground

A/C Clutch Relay


Object Number: 39670 Size: CH

Connector Part Information
    • 12110787
    • 4-Way F Metri-Pack 280 Series (MD GRY)

Pin

Wire Color

Circuit No.

Function

30

PNK

239

Fused Output - Ignition 1

85

DK GRN/WHT

459

Air Conditioning Compressor Control Relay Output - Ignition 1

86

PNK

239

Fused Output - Ignition 1

87

DK GRN

59

Air Conditioning Compressor Clutch Solenoid Feed

A/C Pressure Sensor


Object Number: 219804 Size: CH

Connector Part Information
    • 12110192
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

808

Sensor Return

B

GRY/BLK

474

5 Volt Reference Feed

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Blower Control Module C1


Object Number: 35437 Size: CH

Connector Part Information
    • 12059405
    • 2-Way F Metri-Pack 480 Series (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RED

442

Fused Output - Battery

Blower Control Module C2


Object Number: 73206 Size: CH

Connector Part Information
    • 12059407
    • 4-Way F Metri-Pack 480 Series (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

PPL

65

Blower Motor Feed

B

GRY/BLK

754

Blower Speed Signal - Speed Control (Pontiac)

B

GRY/BLK

754

Blower Speed Signal - Speed Control (Oldsmobile)

B

GRY/BLK

754

Blower Speed Signal - Speed Control (Buick)

C

BLK

1550

Ground

D

--

--

Not Used

Heater and A/C Control (Buick / Oldsmobile with CJ2)


Object Number: 73152 Size: CH

Connector Part Information
    • 12110259
    • 16-Way F Micro-Pack 100 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A1-A6

--

--

Not Used

A7

BRN

1141

Fused Output - Ignition

A8

BLK

1250

Ground

B1

LT BLU

1880

HVAC Control Assembly Signal - Driver

B2

PPL

1881

HVAC Control Assembly Signal - Clock - Driver

B3

GRY

8

Instrument Panel Lamp Feed

B4-B7

--

--

Not Used

B8

BLK

1250

Ground (Oldsmobile)

Heater and A/C Control (Pontiac With C68)


Object Number: 232153 Size: CH

Connector Part Information
    • 12004702
    • Printed Circuit Component (BLK)

Pin

Wire Color

Circuit No.

Function

1

GRY

8

I/P Lamp Feed

2-3

--

--

Not Used

4

DK GRN

835

Diagnostic Signal - E & C

5

DK GRN

835

Diagnostic Signal - E & C

6-8

--

--

Not Used

9

BLK

1250

Ground

10

YEL

32

Fused Output - I/P Lamps

11

BRN

1141

Fused Output - Ignition

12

--

--

Not Used

A-H

--

--

Not Used

J-M

--

--

Not Used

Heater and A/C Programmer (Pontiac)


Object Number: 288391 Size: CH

Connector Part Information
    • 12045469
    • 32-Way F Micro-Pack 100 Series (RED)

Pin

Wire Color

Circuit No.

Function

C1

BLK/WHT

251

Ground-Clean

C2-C4

--

--

Not Used

C5

DK GRN

835

Diagnostic Signal - E & C

C6

BLK

1450

Ground

C7

DK GRN

835

Diagnostic Signal - E & C

C8

--

--

Not Used

C9

GRY/BLK

754

Blower Speed Signal - Speed Control

C10

TAN

800

UART Serial Data Signal

C11

TAN

800

UART Serial Data Signal

C12

BRN

1141

Fused Output - Ignition

C13

ORN

40

Fused Output - Battery

C14-C16

--

--

Not Used

D1

--

--

Not Used

D2

ORN

761

Blower Speed Signal - Speed Feedback

D3

--

--

Not Used

D4

DK GRN/ WHT

762

A/C Request Signal

D5

WHT

193

Rear Defogger Relay Output - Coil

D6

BLK/WHT

1704

Sensor Return

D7

DK GRN

734

Inside Temperature Sensor Signal

D8

LT GRN/BLK

735

Outside Ambient Temperature Sensor Signal

D9

--

--

Not Used

D10

LT BLU/BLK

590

Solar Sensor Signal - Driver

D11-D16

--

--

Not Used

Heater and A/C Programmer (Buick with CJ2)


Object Number: 73221 Size: CH

Connector Part Information
    • 12052107
    • 32 Way F Micro-Pack 100 Series (ORN)

Pin

Wire Color

Circuit No.

Function

E1

BLK/WHT

251

Ground

E2-E4

--

--

Not Used

E5

DK GRN

835

Diagnostic Signal - E & C

E6

BLK

1450

Ground

E7

DK GRN

835

Diagnostic Signal - E & C

E8

--

--

Not Used

E9

GRY/BLK

754

Blower Speed Signal - Speed Control

E10

TAN

800

UART Serial Data Signal

E11

TAN

800

UART Serial Data Signal

E12

BRN

1141

Fused Output - Ignition

E13

ORN

40

Fused Output - Battery

E14

PPL/WHT

724

Vacuum Fluorescent Dimming Signal

E15

GRY

1548

Passenger Solar Sensor Signal

E16

LT BLU

1880

HVAC Control Assembly Signal - Driver

F1

--

--

Not Used

F2

ORN

761

Blower Speed Signal - Speed Feedback

F3

--

--

Not Used

F4

DK GRN/WHT

762

A/C Request Signal

F5

WHT

193

Rear Defogger Relay Output - Coil

F6

BLK/WHT

1704

Sensor Return

F7

DK GRN

734

Inside Temperature Sensor Signal

F8

LT GRN/BLK

735

Outside Ambient Temperature Sensor Signal

F9

TAN

1812

HVAC Control Assembly Return - Passenger

F10

LT BLU/BLK

590

Solar Sensor Signal - Driver

F11

--

--

Not Used

F12

PPL

1881

HVAC Control Assembly Signal - Clock - Driver

F13

--

--

Not Used

F14

BLK

1878

HVAC Control Assembly Signal - Clock - Passenger

F15

--

--

Not Used

F16

DK BLU/WHT

831

HVAC Control Assembly Signal - Passenger

Heater and A/C Programmer (Oldsmobile with CJ2)


Object Number: 73221 Size: CH

Connector Part Information
    • 12089591
    • 32 Way F Micro-Pack 100 Series

Pin

Wire Color

Circuit No.

Function

E1

BLK/WHT

251

Ground

E2-E4

--

--

Not Used

E5

DK GRN

835

Diagnostic Signal - E & C

E6

--

--

Not Used

E7

DK GRN

835

Diagnostic Signal - E & C

E8

--

--

Not Used

E9

GRY/BLK

754

Blower Speed Signal - Speed Control

E10

TAN

800

UART Serial Data Signal

E11

TAN

800

UART Serial Data Signal

E12

BRN

1141

Fused Output - IGN

E13

ORN

40

Fused Output - Battery

E14

PPL/WHT

724

Vacuum Fluorescent Dimming Signal

E15

GRY

1548

Passenger Solar Sensor Signal

E16

LT BLU

1880

HVAC Control Assembly Signal - Driver

F1

--

--

Not Used

F2

ORN

761

Blower Speed Signal - Speed Feedback

F3

--

--

Not Used

F4

DK GRN/WHT

762

A/C Request Signal

F5

WHT

193

Rear Defogger Relay Output - Coil

F6

BLK/WHT

1704

Sensor Return

F7

DK GRN

734

Inside Temperature Sensor Signal

F8

LT GRN/BLK

735

Outside Ambient Temperature Sensor Signal

F9

--

--

Not Used

F10

LT BLU/BLK

590

Solar Sensor Signal - Driver

F11

--

--

Not Used

F12

PPL

1881

HVAC Control Assembly Signal - Clock - Driver

F13-F15

--

--

Not Used

F16

DK BLU/WHT

831

HVAC Control Assembly Signal - Passenger

Inside Air Temperature Sensor


Object Number: 35455 Size: CH

Connector Part Information
    • 12059252
    • 2-Way M Metri-Pack 150 Series (RED)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

734

Inside Temperature Sensor Signal

B

BLK/WHT

1704

Sensor Return

LH Sunload Temperature Sensor (Buick)


Object Number: 35441 Size: CH

Connector Part Information
    • 12047663
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

590

Solar Sensor Signal - Driver

B

BLK/WHT

1704

Sensor Return

LH Sunload Temperature Sensor (Oldsmobile)


Object Number: 258301 Size: CH

Connector Part Information
    • 12059254
    • 2-Way M Metri-Pack 150 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

590

Solar Sensor Signal - Driver

B

BLK/WHT

1704

Sensor Return

Passenger Temperature Control (Buick with CJ2)


Object Number: 258244 Size: CH

Connector Part Information
    • 12047934
    • 8-Way F Metri-Pack 150 Series (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN

1141

Fused Output - Ignition 3

B

TAN

1812

HVAC Control Assembly Return - Passenger

C

PPL/WHT

724

Vacuum Flourescent Dimming Signal

D

--

--

Not Used

E

DK BLU/WHT

831

HVAC Control Assembly Signal - Passenger

F

BLK

1878

HVAC Control Assembly Signal - Clock - Passenger

G

GRY

8

Instrument Panel Lamp Feed

H

BLK

1450

Ground

Passenger Temperature Control (Oldsmobile with CJ2)


Object Number: 320619 Size: CH

Connector Part Information
    • 12162143
    • 4-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/WHT

831

HVAC Control Assembly Signal - Passenger

B

BLK/WHT

1704

Sensor Return

C

GRY

8

Instrument Panel Lamp Feed

D

BLK

1450

Ground

RH Sunload Temperature Sensor (Buick)


Object Number: 35441 Size: CH

Connector Part Information
    • 12047663
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

1548

Solar Sensor Signal - Passenger

B

BLK/WHT

1704

Sensor Return

RH Sunload Temperature Sensor (Oldsmobile)


Object Number: 258301 Size: CH

Connector Part Information
    • 12059254
    • 2-Way M Metri-Pack 150 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A

GRY/BLK

1548

Solar Sensor Signal - Passenger

B

BLK/WHT

1704

Sensor Return

Sunload Temperature Sensor (Pontiac)


Object Number: 35441 Size: CH

Connector Part Information
    • 12047663
    • 2-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/BLK

590

Solar Sensor Signal - Driver

B

BLK/WHT

1704

Sensor Return