GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor
Table 3: Blower Motor Resistor
Table 4: Evaporator Temperature Sensor
Table 5: HVAC Blower Motor
Table 6: HVAC Control Module C1
Table 7: HVAC Control Module C2
Table 8: Mode Actuator -- Defrost
Table 9: Mode Actuator -- Floor
Table 10: Mode Actuator -- Panel
Table 11: Recirculation Actuator

A/C Compressor Clutch


Object Number: 1413014  Size: CH

Connector Part Information

    • OEM: 7283-5448
    • Service: See Catalog
    • 2-Way F (BK)

Pin

Wire Color

Circuit No.

Function

1

D-GN

59

A/C Compressor Clutch Supply Voltage

2

BK

150

Ground

A/C Refrigerant Pressure Sensor


Object Number: 258299  Size: CH

Connector Part Information

    • OEM: 12110192
    • Service: 12102748
    • 3-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

TN

5514

Low Reference

B

GY

2700

5-Volt Reference

C

OG/BK

380

A/C Refrigerant Pressure Sensor Signal

Blower Motor Resistor


Object Number: 697053  Size: CH

Connector Part Information

    • OEM: 12129565
    • Service: 15306069
    • 4-Way F Metri-Pack 280 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

TN

63

Blower Motor Medium 1 Control

B

PU

73

Blower Motor High Control

C

L-BU

72

Blower Motor Medium 2 Control

D

YE

60

Blower Motor Low Control

Evaporator Temperature Sensor


Object Number: 635009  Size: CH

Connector Part Information

    • OEM: 12052641
    • Service: 12102747
    • 2-Way F Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

GY

731

Evaporator Temperature Sensor Signal

B

PU

719

Low Reference

HVAC Blower Motor


Object Number: 1283126  Size: CH

Connector Part Information

    • OEM: E6DB-14489-ALA
    • Service: See Catalog
    • 2-Way F (BK)

Pin

Wire Color

Circuit No.

Function

1

RD/WH

1140

Battery Positive Voltage

2

PU

73

Blower Motor High Control

HVAC Control Module C1


Object Number: 1372291  Size: CH

Connector Part Information

    • OEM: 1318917-1
    • Service: See Catalog
    • 24-Way F 0.25 Series (NAT)

Pin

Wire Color

Circuit No.

Function

1

L-BU

292

Rear Defogger Switch Signal

2

L-GN/BK

1647

Recirculation Door Control B

3

PK/WH

1648

Recirculation Door Control A

4

PU

361

Defrost Mode Valve Solenoid Control A

5

PU/WH

3361

Defrost Mode Valve Solenoid Control B

6-7

--

--

Not Used

8

GY

705

5-Volt Reference

9

WH

193

Rear Defogger Relay Control

10

L-GN

66

A/C Request Signal

11

GY

8

Instrument Panel Lamp Supply Voltage

12

BK/WH

151

Ground

13

YE

60

Blower Motor Low Control

14

L-GN/BK

3366

Lower Mode Valve Solenoid Control B

15

L-GN/WH

366

Lower Mode Valve Solenoid Control A

16

OG

362

Upper Mode Valve Solenoid Control A

17

OG/WH

3362

Upper Mode Valve Solenoid Control B

18-19

--

--

Not Used

20

YE/BK

713

Defrost Mode Valve Position Sensor Signal

21

YE/BK

1814

Lower Mode Door Position Sensor Signal

22

OG

708

Mode Door Position Signal

23

TN

407

Low Reference

24

BN

41

Ignition 3 Voltage

HVAC Control Module C2


Object Number: 1282957  Size: CH

Connector Part Information

    • OEM: 7283-5591-40
    • Service: See Catalog
    • 6-Way F YESC/USCAR Class III Series (L-GY)

Pin

Wire Color

Circuit No.

Function

1

PU

73

Medium 3 Blower Motor Control

2

TN

63

Blower Motor Medium 1 Control

3

YE

268

Blower Motor Relay Common

4

YE

60

Blower Motor Low Control

YE

60

Blower Motor Low Control

5

--

--

Not Used

6

L-BU

72

Blower Motor Medium 1 Control

Mode Actuator -- Defrost


Object Number: 280764  Size: CH

Connector Part Information

    • OEM: 12064993
    • Service: 12102485
    • 6-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

5

PU

361

Defrost Mode Valve Solenoid Control A

6

PU/WH

3361

Defrost Mode Valve Solenoid Control B

7

--

--

Not Used

8

BK

407

Low Reference

9

YE/BK

713

Defrost Mode Valve Position Sensor Signal

10

GY

705

5-Volt Reference

Mode Actuator -- Floor


Object Number: 280764  Size: CH

Connector Part Information

    • OEM: 12064993
    • Service: 12102485
    • 6-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

5

L-GN/WH

366

Lower Mode Valve Solenoid Control A

6

L-GN/BK

3366

Lower Mode Valve Solenoid Control B

7

--

--

Not Used

8

BK

407

Low Reference

9

YE/BK

1814

Lower Mode Door Position Signal

10

GY

705

5-Volt Reference

Mode Actuator -- Panel


Object Number: 280764  Size: CH

Connector Part Information

    • OEM: 12064993
    • Service: 12102485
    • 6-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

5

RD

362

Upper Mode Valve Solenoid Control A

6

OG/WH

3362

Upper Mode Valve Solenoid Control B

7

--

--

Not Used

8

BK

407

Low Reference

9

RD

708

Mode Door Position Signal

10

GY

705

5-Volt Reference

Recirculation Actuator


Object Number: 280764  Size: CH

Connector Part Information

    • OEM: 12064993
    • Service: 12102485
    • 6-Way F Micro-Pack 100 Series (BK)

Pin

Wire Color

Circuit No.

Function

5

L-GN/BK

1647

Recirculation Door Control B

6

RD/WH

1648

Recirculation Door Control A

7-10

--

--

Not Used