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
Connector 4: Ambient Air Temperature Sensor
Connector 5: Blower Motor
Connector 6: HVAC Control - A
Connector 7: HVAC Control - B
Connector 8: High Speed Blower Motor Relay
Connector 9: Mode Actuator
Connector 10: Recirculation Actuator
Connector 11: Sunload Sensor and Security Indicator

A/C Compressor Clutch


Object Number: 1497646  Size: CH

Connector Part Information

  • OEM: AK 32232
  • Service: N/A
  • Description: GY

A/C Compressor Clutch

Pin

Wire Color

Circuit No.

Function

A

D-GN

--

A/C Compressor Clutch Supply Voltage

B

BK

--

Ground

A/C Refrigerant Pressure Sensor


Object Number: 1497742  Size: CH

Connector Part Information

  • OEM: AK 32316
  • Service: N/A
  • Description: BK

A/C Refrigerant Pressure Sensor

Pin

Wire Color

Circuit No.

Function

1

GY(LHD

L-BU(RHD)

--

5-Volt Reference

2

BN

--

Ground

3

OG/BK

--

A/C Refrigerant Pressure Sensor Signal

Air Temperature Actuator


Object Number: 1467023  Size: CH

Connector Part Information

  • OEM: KET MG 610203
  • Service: N/A
  • Description: WH

Air Temperature Actuator

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

BK

--

Air Temperature

3

BN

--

Low Reference

4

--

--

Not Used

5

YE

--

Low Reference

6

YE/BK

--

Lower Mode Door Position Signal

7

L-BU

--

Air Temperature Door Control

Ambient Air Temperature Sensor


Object Number: 1468380  Size: CH

Connector Part Information

  • OEM: KUM PB 625-02027
  • Service: N/A
  • Description: BK

Ambient Air Temperature Sensor

Pin

Wire Color

Circuit No.

Function

1

YE

--

Low Reference

2

--

--

Not Used

3

L-GN/BK

--

Ambient Air Temperature Sensor Signal

Blower Motor


Object Number: 1468411  Size: CH

Connector Part Information

  • OEM: KET MG 610281
  • Service: N/A
  • Description: WH

Blower Motor

Pin

Wire Color

Circuit No.

Function

1

PK

--

Blower Motor Speed Signal

2

YE

--

Blower Motor Supply Voltage

HVAC Control - A


Object Number: 1468412  Size: CH

Connector Part Information

  • OEM: KET MG 610360
  • Service: N/A
  • Description: BK

HVAC Control - A

Pin

Wire Color

Circuit No.

Function

1

BK

--

Ground

2

L-BU

--

Air Temperature Door Control

3

--

--

Not Used

4

BN/WH

--

Instrument Panel Lamps Dimmer Switch Control

5

BN

--

Ignition 2 Voltage

6

D-GN/WH

--

A/C Request Signal

7

--

--

Not Used

8

YE

--

Air Temperature Door Control

9-13

--

--

Not Used

14

OG

--

Battery Positive Voltage

15

YE

--

Ground

16

D-BU/BK

--

Blower High Relay Control

HVAC Control - B


Object Number: 1467032  Size: CH

Connector Part Information

  • OEM: KET MG 610363
  • Service: N/A
  • Description: WH

HVAC Control - B

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

GY/BK

--

Blower Motor Power Transistor Control

3

--

--

Not Used

4

BN

--

Air Temp Actuator Reference Voltage

5

YE/BK

--

Air Temp Actuator Signal

6

BK

--

Ground

7

D-GN

--

Wiper Signal

8

L-GN/BK

--

Ambient Air Temperature Sensor Signal

9

--

--

Not Used

10

L-BU/BK

--

Sunload Sensor Signal

11

BK

--

Ground

12

D-BU

--

Blower Feedback

13

PK/WH

--

Recirc Door Control A

14

D-GN/BK

--

Recirc Door Control B

15

--

--

Not Used

16

D-GN/BK

--

Mode Actuator

17

PK

--

Mode Actuator

18

YE/D-BU

--

Mode Actuator

19

WH/BK

--

Mode Actuator

20

PK/BK

--

Mode Actuator

High Speed Blower Motor Relay


Object Number: 1497842  Size: CH

Connector Part Information

  • OEM: AK 5443-R
  • Service: N/A
  • Description: 9-Way Relay

High Speed Blower Motor Relay

Pin

Wire Color

Circuit No.

Function

30

PK

--

Blower Motor Speed Signal

85

BN

--

Ignition Voltage

86

D-BU/BK

--

High Speed Blower Motor Control

87

BK

--

Ground

Mode Actuator


Object Number: 1467023  Size: CH

Connector Part Information

  • OEM: KET MG 610203
  • Service: N/A
  • Description: WH

Mode Actuator

Pin

Wire Color

Circuit No.

Function

1

YE/D-BU

--

Lower Mode Valve Solenoid Control

2

PK

--

Defrost Mode Valve Solenoid Control

3

D-GN/BK

--

Upper Mode Valve Solenoid Control

4

BN

--

Ignition 3 Voltage

5

BK

--

Ground

6

PK/BK

--

Mode Valve Signal

7

WH/BK

--

Mode Valve Signal

Recirculation Actuator


Object Number: 1467023  Size: CH

Connector Part Information

  • OEM: KET MG 610203
  • Service: N/A
  • Description: WH

Recirculation Actuator

Pin

Wire Color

Circuit No.

Function

1-3

--

--

Not Used

4

BN

--

Ignition Voltage

5

PK/WH

--

Recirculation Door Control A

6

--

--

Not Used

7

D-GN/BK

--

Recirculation Door Control B

Sunload Sensor and Security Indicator


Object Number: 1468409  Size: CH

Connector Part Information

  • OEM: KET MG 610159
  • Service: N/A
  • Description: WH

Sunload Sensor and Security Indicator

Pin

Wire Color

Circuit No.

Function

1

YE

--

Battery Positive Voltage

2

WH

--

Security Indicator Control

3

YE

--

Sunload Sensor Signal

4

BK

--

Low Reference