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

A/C Compressor Clutch


Object Number: 684852  Size: CH

Connector Part Information

  • OEM: 12162017
  • Service: 12101937
  • Description: 2-Way F Metri-Pack 150 Series Sealed (GY)

Terminal Part Information

  • Terminal/Tray: 12160223/3
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

A/C Compressor Clutch

Pin

Wire Color

Circuit No.

Function

A

0.8 BK

550

Ground

B

0.8 D-GN

59

A/C Compressor Clutch Supply Voltage

A/C Low Pressure Switch


Object Number: 537107  Size: CH

Connector Part Information

  • OEM: 12052644
  • Service: 15306302
  • Description: 2-Way F Metri-Pack 150 Series Sealed (L-GY)

Terminal Part Information

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

A/C Low Pressure Switch

Pin

Wire Color

Circuit No.

Function

A

0.5 D-BU

204

A/C Low Pressure Sensor Signal

B

0.5 BK/WH

451

Ground (Gas)

0.8 BK/WH

451

Ground (Diesel)

A/C Refrigerant Pressure Sensor (Gas)


Object Number: 1581660  Size: CH

Connector Part Information

  • OEM: 15397149
  • Service: 88988301
  • Description: 3-Way F GT 150 Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326429/5
  • Core/Insulation Crimp: E/4
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)

A/C Refrigerant Pressure Sensor (Gas)

Pin

Wire Color

Circuit No.

Function

1

0.5 TN

5514

Low Reference

2

0.5 GY

2700

5-Volt Reference (4.3L)

0.5 GY/WH

2700

5-Volt Reference (-4.3L)

3

0.5 OG/BK

380

A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor (Diesel)


Object Number: 1519475  Size: CH

Connector Part Information

  • OEM: 15477863
  • Service: 88988301
  • Description: 3-Way F GT 150 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 (Diesel)

Pin

Wire Color

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

Air Temperature Actuator - Left


Object Number: 280764  Size: CH

Connector Part Information

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

Terminal Part Information

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

Air Temperature Actuator - Left

Pin

Wire Color

Circuit No.

Function

5

0.35 BN

839

Ignition 1 Voltage

6

0.35 D-BU

1199

Left Air Temperature Door Control

7

0.35 YE

1791

Low Reference

8

--

--

Not Used

9

0.35 L-BU

733

Left Air Temperature Door Position Signal

10

0.35 L-BU/BK

598

5-Volt Reference

Air Temperature Actuator - Right


Object Number: 280764  Size: CH

Connector Part Information

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

Terminal Part Information

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

Air Temperature Actuator - Right

Pin

Wire Color

Circuit No.

Function

5

0.35 BN

839

Ignition 1 Voltage

6

0.35 WH/BK

1236

Right Air Temperature Door Control

7

0.35 YE

1791

Air Temperature Door Control

8

--

--

Not Used

9

0.35 D-BU

1646

Right Air Temperature Door Position Signal

10

0.35 L-BU/BK

598

5-Volt Reference

Air Temperature Sensor - Upper Left


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-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-35616-2A (GY)

Air Temperature Sensor - Upper Left

Pin

Wire Color

Circuit No.

Function

A

0.35 D-GN

6101

Low Reference

B

0.35 TN

516

Upper Left Air Temperature Sensor Signal

Air Temperature Sensor - Upper Right


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-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-35616-2A (GY)

Air Temperature Sensor - Upper Right

Pin

Wire Color

Circuit No.

Function

A

0.35 D-GN

6101

Low Reference

B

0.35 TN

517

Upper Right Air Temperature Sensor Signal

Air Temperature Sensor - Lower Left


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

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

Air Temperature Sensor - Lower Left

Pin

Wire Color

Circuit No.

Function

A

0.35 BN

6101

Low Reference

B

0.35 WH/BK

518

Lower Left Air Temperature Sensor Signal

Air Temperature Sensor - Lower Right


Object Number: 82383  Size: CH

Connector Part Information

  • OEM: 12047662
  • Service: 12085535
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

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

Air Temperature Sensor - Lower Right

Pin

Wire Color

Circuit No.

Function

A

0.35 BN

6101

Low Reference

B

0.35 GY/BK

520

Lower Right Air Temperature Sensor Signal

Ambient Air Temperature Sensor - HVAC


Object Number: 684793  Size: CH

Connector Part Information

  • OEM: 13543521
  • Service: 12101856
  • Description: 2-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

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

Ambient Air Temperature Sensor - HVAC

Pin

Wire Color

Circuit No.

Function

A

0.5 L-GN/BK

735

Outside Ambient Air Temperature Sensor Signal

B

0.5 D-GN

6101

Low Reference

Ambient Light/Sunload Sensor Assembly


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-35616-2A (GY)

Ambient Light/Sunload Sensor Assembly

Pin

Wire Color

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

1851

Ground

D

0.35 WH

278

Ambient Light Sensor Signal

Blower Motor


Object Number: 62488  Size: CH

Connector Part Information

  • OEM: 12084957
  • Service: 12126461
  • Description: 2-Way F Metri-Pack 280 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12015858/Delphi 4
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12094430/J-35161-4A (PU)

Blower Motor

Pin

Wire Color

Circuit No.

Function

A

3 PU

65

Battery Positive Voltage

B

3 BK

2150

Low Reference

Blower Motor Control Module X1


Object Number: 1837857  Size: CH

Connector Part Information

  • OEM: 10846816
  • Service: 88988507
  • Description: 2-Way F 6.3 Series (GY)

Terminal Part Information

  • Terminal/Tray: 7116-4122-02/Yazaki 10
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)

Blower Motor Control Module X1

Pin

Wire Color

Circuit No.

Function

1

3 PU

65

Battery Positive Voltage

2

3 BK

2150

Low Reference

Blower Motor Control Module X2


Object Number: 1837860  Size: CH

Connector Part Information

  • OEM: 13520671
  • Service: 88988512
  • Description: 6-Way F GT 150 G3 Series (BK)

Terminal Part Information

  • Pin: 3
  • Terminal/Tray: 18191812/Delphi 19
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-2A (GY)
  • Pins: 5, 6
  • Terminal/Tray: 7116-4122-02/Yazaki 10
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)

Blower Motor Control Module X2

Pin

Wire Color

Circuit No.

Function

1-2

--

--

Not Used

3

0.35 PU/WH

754

Blower Motor Speed Control

4

--

--

Not Used

5

3 BK

1050

Ground

6

3 RD

542

Battery Positive Voltage

HVAC Control Module X1


Object Number: 1715226  Size: CH

Connector Part Information

  • OEM: 15491305
  • Service: 15126709
  • Description: 20-Way F USCAR 0.64 Series (BN)

Terminal Part Information

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

HVAC Control Module X1

Pin

Wire Color

Circuit No.

Function

1

0.35 WH/BK

5515

Inside Air Temperature Sensor Assembly Control

2-3

--

--

Not Used

4

0.35 D-GN

734

Inside Air Temperature Sensor Signal

5

0.35 GY

1548

Passenger Sunload Sensor Signal

6-14

--

--

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

18-20

--

--

Not Used

HVAC Control Module X2


Object Number: 1653409  Size: CH

Connector Part Information

  • OEM: 15491285
  • Service: 15136073
  • Description: 16-Way F Kaizan 0.64 (BK)

Terminal Part Information

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

HVAC Control Module X2

Pin

Wire Color

Circuit No.

Function

1

0.35 RD/WH

3340

Battery Positive Voltage

2-3

--

--

Not Used

4

0.35 L-GN/BK

735

Outside Ambient Air Temperature Sensor Signal

5

0.35 D-GN

5060

Low Speed GMLAN Serial Data

6

0.35 D-BU

204

A/C Low Pressure Sensor Signal

7

--

--

Not Used

8

0.5 BK/WH

1851

Ground

9

0.35 OG

300

Ignition 3 Voltage

10

0.35 WH

193

Platforms Rear Defog Relay Control (C49)

11-13

--

--

Not Used

14

0.35 L-GN

1478

Coolant Level Switch Signal (Diesel)

15

0.5 BK

1050

Ground

16

0.35 D-GN

6101

Low Reference

HVAC Control Module X3


Object Number: 1715228  Size: CH

Connector Part Information

  • OEM: 15491304
  • Service: 15126710
  • Description: 20-Way F USCAR 0.64 Series (GY)

Terminal Part Information

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

HVAC Control Module X3

Pin

Wire Color

Circuit No.

Function

1

0.35 TN

518

Lower Left Air Temperature Sensor Signal

2

0.35 YE/BK

713

Defrost/Heater Mode Valve Position Sensor Signal

3

0.35 PU

1838

Recirculation Door Position Signal

4

0.35 GY/BK

754

Blower Motor Speed Control

5-9

--

--

Not Used

10

0.35 GY

598

Reference Voltage

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

Right Air Temperature Door Position Signal

14

--

--

Not Used

15

0.35 TN

2273

Mode Door Control

16

0.35 D-BU

1199

Left Air Temperature Door Control

17

0.35 D-GN

1614

Recirculation Door Control

18

0.35 WH/BK

1236

Right Air Temperature Door Control

19

--

--

Not Used

20

0.35 YE

1791

Low Reference

Inside Air Temperature Sensor - Front


Object Number: 130635  Size: CH

Connector Part Information

  • OEM: 12045813
  • Service: 12101889
  • Description: 4-Way F Metri-Pack 150 Series (CM)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Inside Air Temperature Sensor - Front

Pin

Wire Color

Circuit No.

Function

A

0.35 D-GN

734

Inside Air Temperature Sensor Signal

B

0.35 WH/BK

5515

Inside Air Temperature Sensor Assembly Control

C

0.35 BK

1050

Ground

D

0.35 D-GN

6101

Low Reference

Mode Actuator


Object Number: 280764  Size: CH

Connector Part Information

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

Terminal Part Information

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

Mode Actuator

Pin

Wire Color

Circuit No.

Function

5

0.35 BN

839

Ignition 1 Voltage

6

0.35 TN

2273

Mode Door Control

7

0.35 YE

1791

Low Reference

8

--

--

Not Used

9

0.35 L-GN

713

Mode Door Position Signal

10

0.35 L-BU/BK

598

5-Volt Reference

Recirculation Actuator


Object Number: 280764  Size: CH

Connector Part Information

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

Terminal Part Information

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

Recirculation Actuator

Pin

Wire Color

Circuit No.

Function

5

0.35 BN

839

Ignition 1 Voltage

6

0.35 D-GN

1614

Recirculation Door Control

7

0.35 YE

1791

Low Reference

8

--

--

Not Used

9

0.35 PU

1838

Recirculation Door Position Signal

10

0.35 L-BU/BK

598

5-Volt Reference