GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Climate Control Sensor/Solar Lead Sensor -- Top Center I/P
Table 4: HVAC Jumper - Blower Motor -- Behind I/P
Table 5: HVAC Jumper to Control Head -- Behind I/P
Table 6: HVAC Jumper to Mode Actuator
Table 7: HVAC Jumper to PMOS
Table 8: HVAC Jumper to Recirc Actuator -- Behind I/P - HVAC Module
Table 9: HVAC Jumper to Temperature Actuator -- Behind I/P - HVAC Module
Table 10: HVAC Module Inline - Harness -- Center I/P - Behind HVAC Module

A/C Compressor Clutch


Object Number: 537107  Size: CH

Connector Part Information

    • 12052644
    • 2-Way F Metri-Pack 150 Series Sealed (LT GRY)

Pin

Wire Color

Circuit Number

Function

A

BLK

150

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 Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit Number

Function

A

BLK

--

Low Reference

 

B

GRY

--

5 Volt Reference

 

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Climate Control Sensor/Solar Lead Sensor -- Top Center I/P


Object Number: 39661  Size: CH

Connector Part Information

    • 12047786
    • Black

Pin

Wire Color

Circuit Number

Function

A

LT GRN/BLK

1137

BCM

B

YEL/BLK

1138

BCM

C

BLK

476

HVAC Inline

D

LT BLU/BLK

590

HVAC Inline

HVAC Jumper - Blower Motor -- Behind I/P


Object Number: 684852  Size: CH

Connector Part Information

    • 71236020
    • Natural

Pin

Wire Color

Circuit Number

Function

A

BLU/WHT

761

Feed, PMOS

B

YEL

502

High Current Feed, Blower Motor

HVAC Jumper to Control Head -- Behind I/P


Object Number: 1673922  Size: CH

Connector Part Information

    • 1L-A65-22S-D3C1
    • Green

Pin

Wire Color

Circuit Number

Function

1

LT BLU

61

HVAC Jumper to I/P Inline

2

--

--

Not Used

3

WHT

733

Temperature Actuator

4

RED

130

Temperature Actuator

5

BLK

476

HVAC Jumper to I/P Inline

6

PPL

54

Blower Motor Control/PMOS

7

RED/BLK

1791

Temperature Actuator

8

LT BLU/WHT

1318

Mode Door Motor

9

LT GRN/BLK

1648

Recirc Motor

10

BLU/WHT

761

Blower Motor Feedback/Blower Motor

11

GRY

590

HVAC Jumper to I/P Inline

12

BLU/RED

8

Bulb Illumination

13

GRN

119

Mode Door Motor

14

BLU

683

HVAC Jumper to I/P Inline

15

WHT/RED

641

HVAC Jumper to I/P Inline

16

BLK/WHT

550

HVAC Jumper to I/P Inline

17

BLU/YEL

1640

HVAC Jumper to I/P Inline

18

ORN

1807

HVAC Jumper to I/P Inline

19

YEL

1807

HVAC to I/P Inline

20

RED/WHT

1199

Temperature Actuator

21

GRN/YEL

1647

Recirc

22

LT GRN

1218

Mode Door Motor

HVAC Jumper to Mode Actuator


Object Number: 887473  Size: CH

Connector Part Information

    • 12040953
    • Black

Pin

Wire Color

Circuit Number

Function

5

LT GRN

1218

Mode Motor -

6

LT BLU/WHT

1318

Mode Motor +

7

--

--

Not Used

8

BLK/WHT

550

Ground

9

GRN

119

Feed Back

10

RED

130

Feed 5V Ref.

HVAC Jumper to PMOS


Object Number: 1284885  Size: CH

Connector Part Information

    • 61015041
    • Unknown

Pin

Wire Color

Circuit Number

Function

1

BLU/WHT

761

Feed, Blower Motor

2

PPL

54

Blower Motor Control

3

BLK/RED

550

Ground

4

--

--

Not Used

HVAC Jumper to Recirc Actuator -- Behind I/P - HVAC Module


Object Number: 887473  Size: CH

Connector Part Information

    • 12040953
    • Black

Pin

Wire Color

Circuit Number

Function

5

GRN/YEL

1647

Feed, + for CW Rotation

6

LT GRN/BLK

1640

Feed, - for CCW Rotation

7-10

--

--

Not Used

HVAC Jumper to Temperature Actuator -- Behind I/P - HVAC Module


Object Number: 887473  Size: CH

Connector Part Information

    • 12040953
    • Black

Pin

Wire Color

Circuit Number

Function

5

RED/BLK

1791

Temp Motor +

6

RED/WHT

1199

Temp Motor -

7

--

--

Not Used

8

RED

130

Feed 5V Ref.

9

WHT

733

Feed Back

10

BLK/WHT

550

Ground

HVAC Module Inline - Harness -- Center I/P - Behind HVAC Module


Object Number: 813080  Size: CH

Connector Part Information

    • 15336209
    • Black

Pin

Wire Color

Circuit Number

Function

A

YEL

502

LIPFB

B

BLU

683

LIPFB

C

BLK/WHT

550

LIPFB

BLK/WHT

550

LIPFB

D

LT BLU

61

BCM/UHFB

E

GRY

590

LIPFB

F

BLK/RED

550

Center Console Ground

G

BLU/RED

8

LIPFB

H

WHT/RED

641

LIPFB

J

YEL

1807

BCM

K

ORN

1807

LIPFB

L

BLU/YEL

1640

UHFB

M

BLK

476

UHFB/Solar Load Sensor