GM Service Manual Online
For 1990-2009 cars only
Connector 1: A/C Compressor Clutch
Connector 2: A/C Refrigerant Pressure Sensor
Connector 3: Air Temperature Actuator - Auxiliary
Connector 4: Air Temperature Actuator - Left
Connector 5: Air Temperature Actuator - Right
Connector 6: Air Temperature Sensor - Lower Left
Connector 7: Air Temperature Sensor - Lower Right
Connector 8: Air Temperature Sensor - Upper Left
Connector 9: Air Temperature Sensor - Upper Right
Connector 10: Ambient Temperature Sensor
Connector 11: Blower Motor
Connector 12: Blower Motor - Auxiliary
Connector 13: Blower Motor Control Module - Auxiliary X1
Connector 14: Blower Motor Control Module - Auxiliary X2
Connector 15: Blower Motor Control Module X1
Connector 16: Blower Motor Control Module X2
Connector 17: Evaporator Temperature Sensor
Connector 18: HVAC Control Assembly - Auxiliary (-UK6)
Connector 19: HVAC Control Module X1
Connector 20: HVAC Control Module X2
Connector 21: HVAC Control Module X3
Connector 22: HVAC Control Module X4
Connector 23: Inside Air Temperature Sensor
Connector 24: Mode Actuator
Connector 25: Mode Actuator - Auxiliary
Connector 26: Recirculation Actuator
Connector 27: Sunload Sensor

A/C Compressor Clutch


Object Number: 897985  Size: CH

Connector Part Information

  • OEM: 7282-5548-30
  • Service: 88953303
  • Description: 2-Way M YESC Weather Pack (BK)

Terminal Part Information

  • Terminal/Tray: 7114-4103-08/9
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094430/J-35616-3 (GY)

A/C Compressor Clutch

Pin

Wire

Circuit No.

Function

1

0.5 D-GN

59

A/C Compressor Clutch Supply Voltage

2

1 BK

1050

Ground

A/C Refrigerant Pressure Sensor


Object Number: 1519475  Size: CH

Connector Part Information

  • OEM: 15477863
  • Service: 88988301
  • Description: 3-Way F GT 150 Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326267/19
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

A/C Refrigerant Pressure Sensor

Pin

Wire

Circuit No.

Function

1

0.5 TN

5514

Low Reference

2

0.5 GY

2700

5-Volt Reference

3

0.5 OG/BK

380

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator - Auxiliary


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Air Temperature Actuator - Auxiliary

Pin

Wire

Circuit No.

Function

5

0.35 GY

2614

Auxiliary Air Temperature Door Control

6

0.35 BN

6555

Auxiliary Temperature Motor Supply Voltage

7

--

--

Not Used

8

0.35 GY/BK

1798

Low Reference

9

0.35 PK

2145

Auxiliary Air Temperature Door Position Signal

10

0.35 GY

596

5-Volt Reference

Air Temperature Actuator - Left


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Air Temperature Actuator - Left

Pin

Wire

Circuit No.

Function

5

0.35 D-BU

1199

Air Temperature Door Control

6

0.35 L-GN

2210

Air Temperature Door Control

7

--

--

Not Used

8

0.35 YE

1791

Low Reference

9

0.35 L-BU

733

Air Temperature Door Position Signal

10

0.35 GY

598

5-Volt Reference

Air Temperature Actuator - Right


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Air Temperature Actuator - Right

Pin

Wire

Circuit No.

Function

5

0.35 WH/BK

1236

Auxiliary Air Temperature Door Control

6

0.35 GY/BK

2778

Right Air Temperature Door Control A

7

--

--

Not Used

8

0.35 YE

1791

Low Reference

9

0.35 D-BU

1646

Auxiliary Air Temperature Door Position Signal

10

0.35 GY

598

5-Volt Reference

Air Temperature Sensor - Lower Left


Object Number: 1459283  Size: CH

Connector Part Information

  • OEM: 1-968704-1
  • Service: See Catalog
  • Description: 2-Way F MQS Series (BK)

Terminal Part Information

  • Terminal/Tray: 928999-5/15
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Air Temperature Sensor - Lower Left

Pin

Wire

Circuit No.

Function

1

0.35 TN

518

Lower Left Air Temperature Sensor Signal

2

0.35 TN

552

Low Reference

Air Temperature Sensor - Lower Right


Object Number: 1459283  Size: CH

Connector Part Information

  • OEM: 1-968704-1
  • Service: See Catalog
  • Description: 2-Way F MQS Series (BK)

Terminal Part Information

  • Terminal/Tray: 928999-5/15
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Air Temperature Sensor - Lower Right

Pin

Wire

Circuit No.

Function

1

0.35 TN

520

Lower Right Air Temperature Sensor Signal

2

0.35 TN

552

Low Reference

Air Temperature Sensor - Upper Left


Object Number: 1459283  Size: CH

Connector Part Information

  • OEM: 1-968704-1
  • Service: See Catalog
  • Description: 2-Way F MQS Series (BK)

Terminal Part Information

  • Terminal/Tray: 928999-5/15
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Air Temperature Sensor - Upper Left

Pin

Wire

Circuit No.

Function

1

0.35 TN

516

Upper Left Air Temperature Sensor Signal

2

0.35 YE

61

Low Reference

Air Temperature Sensor - Upper Right


Object Number: 1459283  Size: CH

Connector Part Information

  • OEM: 1-968704-1
  • Service: See Catalog
  • Description: 2-Way F MQS Series (BK)

Terminal Part Information

  • Terminal/Tray: 928999-5/15
  • Core/Insulation Crimp: H/H
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Air Temperature Sensor - Upper Right

Pin

Wire

Circuit No.

Function

1

0.35 TN

517

Upper Right Air Temperature Sensor Signal

2

0.35 YE

61

Low Reference

Ambient Temperature Sensor


Object Number: 684793  Size: CH

Connector Part Information

  • OEM: 12052642
  • Service: 12101856
  • Description: 2-Way F Metri-Pack 150 Series, Sealed (L-GN)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-14 (GN)

Ambient Temperature Sensor

Pin

Wire

Circuit No.

Function

A

0.35 L-GN/BK

735

Ambient Air Temperature Sensor Signal

B

0.35 YE

61

Low Reference

Blower Motor


Object Number: 62488  Size: CH

Connector Part Information

  • OEM: 12084957
  • Service: 12126461
  • Description: 2-Way F (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor

Pin

Wire

Circuit No.

Function

A

3.0 PU

65

Blower Motor Supply Voltage

B

3.0 BK

5987

Low Reference

Blower Motor - Auxiliary


Object Number: 808706  Size: CH

Connector Part Information

  • OEM: 12064749
  • Service: 12064749
  • Description: 2-Way F Metri-Pack 480 Series (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Blower Motor - Auxiliary

Pin

Wire

Circuit No.

Function

A

3.0 RD/WH

65

Blower Motor Supply Voltage

B

3.0 OG

5988

Low Reference

Blower Motor Control Module - Auxiliary X1


Object Number: 1817814  Size: CH

Connector Part Information

  • OEM: 15226103
  • Service: 88988507
  • Description: 2-Way F Receptacle 6.3 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12191812/19
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Blower Motor Control Module - Auxiliary X1

Pin

Wire

Circuit No.

Function

1

3.0 RD/WH

65

Blower Motor Supply Voltage

2

3.0 OG

5988

Low Reference

Blower Motor Control Module - Auxiliary X2


Object Number: 1798802  Size: CH

Connector Part Information

  • OEM: 15226104
  • Service:88988512
  • Description: 6-Way F YESC Kaizen Series (BK)

Terminal Part Information

  • Terminal/Tray: 7114-4122-02/9
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 12094430/J-35616-43 (RD)

Blower Motor Control Module - Auxiliary X2

Pin

Wire

Circuit No.

Function

1-2

--

--

Not Used

3

0.35 D-GN

2211

Auxiliary Blower Motor Speed Control

4

--

--

Not Used

5

3.0 BK

850

Ground

6

3.0 RD/WH

2640

Battery Positive Voltage

Blower Motor Control Module X1


Object Number: 1817814  Size: CH

Connector Part Information

  • OEM: 15226103
  • Service: 88988507
  • Description: 2-Way F Receptacle 6.3 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12191812/19
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

Blower Motor Control Module X1

Pin

Wire

Circuit No.

Function

1

3.0 PU

65

Blower Motor Supply Voltage

2

3.0 BK

5987

Low Reference

Blower Motor Control Module X2


Object Number: 1798802  Size: CH

Connector Part Information

  • OEM: 15226104
  • Service:88988512
  • Description: 6-Way F YESC Kaizen Series (BK)

Terminal Part Information

  • Terminal/Tray: 7114-4122-02/9
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 12094430/J-35616-43 (RD)

Blower Motor Control Module X2

Pin

Wire

Circuit No.

Function

1-2

--

--

Not Used

3

0.35 GY/BK

754

Blower Motor Speed Control

4

--

--

Not Used

5

3.0 BK

450

Ground

6

3.0 RD/BK

442

Battery Positive Voltage

Evaporator Temperature Sensor


Object Number: 1459283  Size: CH

Connector Part Information

  • OEM: 1-968704-1
  • Service: See Catalog
  • Description: 2-Way F MQS Series (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Evaporator Temperature Sensor

Pin

Wire

Circuit No.

Function

1

0.35 WH

2622

Evaporator Temperature Sensor Signal

2

0.35 TN

552

Low Reference

HVAC Control Assembly - Auxiliary (-UK6)


Object Number: 1711011  Size: CH

Connector Part Information

  • OEM: 89047355
  • Service: See Catalog
  • Description: 10-Way F 0.64 Unsealed (BK)

Terminal Part Information

  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

HVAC Control Assembly - Auxiliary (-UK6)

Pin

Wire

Circuit No.

Function

1

0.35 GY

8

Instrument Panel Lamp Supply Voltage

2

0.5 BK

750

Ground

3

0.5 GY

596

5-Volt Reference

4

0.5 GY/BK

1798

Low Reference

5-6

--

--

Not Used

7

0.5 PU/WH

760

Auxiliary Blower Motor Speed Control

8

0.5 YE

2214

Auxiliary Air Temperature Door Control

9

--

--

Not Used

10

0.5 OG

2615

Auxiliary Mode Door Control

HVAC Control Module X1


Object Number: 1715226  Size: CH

Connector Part Information

  • OEM: 15126709
  • Service: 15126709
  • Description: 20-Way F USCAR 0.64 Series (BN)

Terminal Part Information

  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

HVAC Control Module X1

Pin

Wire

Circuit No.

Function

1-3

--

--

Not Used

4

0.35 D-GN

734

Inside Air Temperature Sensor Signal

5

0.35 GY

1548

Passenger Sunload Sensor Signal

6-7

--

--

Not Used

8

0.5 PU/WH

760

Auxiliary Blower Motor Speed Control (-UK6)

9

0.5 OG

2615

Auxiliary Mode Door Control (-UK6)

10

0.5 YE

2214

Auxiliary Air Temperature Door Control (-UK6)

11-14

--

--

Not Used

15

0.35 L-BU/BK

590

Driver Sunload Sensor Signal

16

0.35 TN

516

Upper Left Air Temperature Sensor Signal

17

0.35 TN

517

Upper Right Air Temperature Sensor Signal

18

0.5 PK

2145

Air Temperature Switch Signal - Right

19

0.5 GY

2599

Auxiliary Mode Door Control

20

--

--

Not Used

HVAC Control Module X2


Object Number: 1711013  Size: CH

Connector Part Information

  • OEM: 7283-9076-30
  • Service: See Catalog
  • Description: 16-Way F Kaizen 0.64 Series (BK)

Terminal Part Information

  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

HVAC Control Module X2

Pin

Wire

Circuit No.

Function

1

0.5 RD/WH

4540

Battery Positive Voltage

2-3

--

--

Not Used

4

0.35 L-GN/BK

735

Ambient Air Temperature Sensor Signal

5

0.35 D-GN

5060

Low Speed GMLAN Serial Data

6-7

--

--

Not Used

8

0.35 BK/WH

1551

Ground

9

0.35 OG

300

Power Mode

10

0.35 WH

193

Rear Defog Relay Control

11-15

--

--

Not Used

16

0.35 YE

61

Low Reference

HVAC Control Module X3


Object Number: 1715228  Size: CH

Connector Part Information

  • OEM: 15126710
  • Service: 15126710
  • Description: 20-Way F USCAR 0.64 Series (GY)

Terminal Part Information

  • Terminal/Tray: SAIT-A03T-M064/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215A/J-35616-64B (L-BU)

HVAC Control Module X3

Pin

Wire

Circuit No.

Function

1

0.35 TN

518

Lower Left Air Temperature Sensor Signal

2

0.35 L-GN

2275

Mode Door Position Signal

3

0.35 PU

1838

Recirculation Door Position Signal

4

0.35 GY/BK

754

Blower Motor Speed Control

5

0.35 TN

2273

Mode Door Control

6

0.35 D-BU

1199

Air Temperature Door Control

7

0.35 D-GN

1614

Recirculation Door Control B

8

0.35 WH/BK

1236

Auxiliary Air Temperature Door Control

9

--

--

Not Used

10

0.35 GY

598

5-Volt Reference

11

0.35 TN

520

Lower Right Air Temperature Sensor Signal

12

0.35 L-BU

733

Air Temperature Door Position Signal

13

0.35 D-BU

1646

Auxiliary Air Temperature Door Position Signal

14

0.35 WH

2622

Evaporator Temperature Sensor Signal

15

0.35 WH

119

Mode Door Control

16

0.35 L-GN

2210

Air Temperature Door Control

17

0.35 TN/BK

2274

Recirculation Door Control Circuit

18

0.35 GY/BK

2778

Right Air Temperature Door Control A

19

0.35 TN

552

Low Reference

20

035 YE

1791

Low Reference

HVAC Control Module X4


Object Number: 1715225  Size: CH

Connector Part Information

  • OEM: 7283-9079-60
  • Service: See Catalog
  • Description: 16-Way F Kaizen 0.64 Series (GN)

Terminal Part Information

  • Terminal/Tray: 7116-4618-02/14
  • Core/Insulation Crimp: P/P
  • Release Tool/Test Probe: J-38125-215/J-35616-64B (L-BU)

HVAC Control Module X4

Pin

Wire

Circuit No.

Function

1

--

--

Not Used

2

0.5 GY

596

5-Volt Reference

3

0.5 L-GN/WH

5729

Auxiliary Mode Motor Supply Voltage

4

0.5 BN

6555

Auxiliary Temperature Motor Supply Voltage

5

--

--

Not Used

6

0.5 GY/BK

1798

Low Reference

7-9

--

--

Not Used

10

0.5 D-GN

2211

Auxiliary Blower Motor Speed Control

11

0.5 OG

2215

Auxiliary Mode Door Control

12

0.5 GY

2614

Auxiliary Air Temperature Door Control

13-16

--

--

Not Used

Inside Air Temperature Sensor


Object Number: 816551  Size: CH

Connector Part Information

  • OEM: 12059252
  • Service: 12102749
  • Description: 2-Way M Metri-Pack 150 Series (RD)

Terminal Part Information

  • Terminal/Tray: 12047581/2
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-3 (GY)

Inside Air Temperature Sensor

Pin

Wire

Circuit No.

Function

A

0.35 D-GN

734

Inside Air Temperature Sensor Signal

B

0.35 YE

61

Low Reference

Mode Actuator


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Mode Actuator

Pin

Wire

Circuit No.

Function

5

0.35 TN

2273

Mode Door Control

6

0.35 TN/BK

119

Mode Door Control

7

--

--

Not Used

8

0.35 YE

1791

Low Reference

9

0.35 L-GN

2275

Mode Door Position Signal

10

0.35 GY

598

5-Volt Reference

Mode Actuator - Auxiliary


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Mode Actuator - Auxiliary

Pin

Wire

Circuit No.

Function

5

0.35 OG

2215

Auxiliary Mode Door Control

6

0.35 BN

5729

Auxiliary Mode Motor Supply Voltage

7

--

--

Not Used

8

0.35 GY/BK

1798

Low Reference

9

0.35 GY

2599

Auxiliary Mode Door Control

10

0.35 GY

596

5-Volt Reference

Recirculation Actuator


Object Number: 280764  Size: CH

Connector Part Information

  • OEM: 12064993
  • Service: 12102485
  • Description: Micro-Pack 100 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12146447/3
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12031876-1/J-35616-6 (BN)

Recirculation Actuator

Pin

Wire

Circuit No.

Function

5

0.35 D-GN

1614

Recirculation Door Control B

6

0.35 TN/BK

2274

Recirculation Door Control A

7

--

--

Not Used

8

0.35 YE

1791

Low Reference

9

0.35 PU

1838

Recirculation Door Position Signal

10

0.35 GY

598

5-Volt Reference

Sunload Sensor


Object Number: 130637  Size: CH

Connector Part Information

  • OEM: 12064760
  • Service: 12085208
  • Description: 4-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-14 (GN)

Sunload Sensor

Pin

Wire

Circuit No.

Function

A

0.35 L-BU/BK

590

Driver Sunload Sensor Signal

B

0.35 GY

1548

Passenger Sunload Sensor Signal

C

0.35 BK/WH

1551

Ground

D

0.35 L-GN/BK

1137

DRL Ambient Light Sensor Signal