GM Service Manual Online
For 1990-2009 cars only

HVAC Connector End Views RHD

Table 1: A/C Refrigerant Pressure Sensor (L98)
Table 2: A/C Refrigerant Pressure Sensor (LY7)
Table 3: Air Mix Actuator
Table 4: Blower Motor (RHD)
Table 5: Electronic Control Valve Displacement (ECVD)
Table 6: HVAC Control Module - X1
Table 7: HVAC Control Module - X2
Table 8: HVAC Control Module - X3-C1
Table 9: Mode Actuator - 1
Table 10: Mode Actuator - 2
Table 11: Recirculation Actuator

A/C Refrigerant Pressure Sensor (L98)


Object Number: 1989348  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

1

BN/D-GN

0.5

Low Reference

2

GY

0.5

5-Volt Reference

3

OG/BK

0.5

A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor (LY7)


Object Number: 1989593  Size: CH

Connector Part Information

GT 150 Series, Sealed

Pin

Wire Colour

Wire Size

Function

1

BN/GN

0.5

Low Reference

2

GY

0.5

5-Volt Reference

3

OG/BK

0.5

A/C Refrigerant Pressure Sensor Signal

Air Mix Actuator


Object Number: 1989413  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

1

WH

0.3

Air Mix Actuator Power

2

YE

0.3

Air Mix Actuator Control

3

BK/RD

0.3

Low Reference

4

BK/YE

0.3

Air Mix Actuator Feedback

5

BK/WH

0.3

5-Volt Reference

Blower Motor (RHD)


Object Number: 1989417  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

A

GN

3.0

Battery Positive Voltage

B

OG

3.0

HVAC Blower Motor Control Circuit

Electronic Control Valve Displacement (ECVD)


Object Number: 1989420  Size: CH

Connector Part Information

2-Way F 2.3 Sealed Series (BK)

Pin

Wire Colour

Wire Size

Function

1

D-BU

0.5

A/C Compressor Low Reference

2

D-GN

0.5

A/C Compressor Supply Voltage

HVAC Control Module - X1


Object Number: 1989423  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

X1-1

OG

3.0

HVAC Blower Motor Control Circuit

X1-2

BK

3.0

Ground

HVAC Control Module - X2


Object Number: 1989426  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

X2-1

--

--

Not Used

X2-2

--

--

Not Used

X2-3

--

--

Not Used

X2-4

--

--

Not Used

X2-5

--

--

Not Used

X2-6

WH/BU

0.3

Rear Defog Relay Control

X2-7

--

--

Not Used

X2-8

--

--

Not Used

X2-9

--

--

Not Used

X2-10

D-GN

0.3

Low Speed GMLAN Serial Data

X2-11

--

--

Not Used

X2-12

D-BU

0.5

AC Compressor Low Reference

X2-13

D-GN

0.5

AC Compressor Supply Voltage

X2-14

OG/GN

0.75

Battery Positive Voltage

HVAC Control Module - X3-C1


Object Number: 1989429  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

X3C1-1

BK

0.3

Mode Actuator 1 - Control

X3C1-2

BN

0.3

Mode Actuator 1 - Power

X3C1-3

GY

0.3

Mode Actuator 1 - Feedback

X3C1-4

RD

0.3

Mode Actuator 2 - Feedback

X3C1-5

BK/YE

0.3

Air Mix Actuator - Feedback

X3C1-6

WH/RD

0.3

Recirculation Actuator - Feedback

X3C1-7

BK

0.35

Evaporator Temperature Sensor Signal

X3C1-8

BK

0.35

Evaporator Temperature Sensor Low Reference

X3C1-9

BU/BK

0.3

Low Reference

X3C1-10

BK/RD

0.3

Low Reference

X3C1-11

L-GN

0.3

Mode Actuator 2 - Power

X3C1-12

OG

0.3

Mode Actuator 2 - Control

X3C1-13

WH

0.3

Air Mix Actuator - Power

X3C1-14

YE

0.3

Air Mix Actuator - Control

X3C1-15

WH/BK

0.3

Recirculation Actuator - Power

X3C1-16

WH/BU

0.3

Recirculation Actuator - Control

X3C1-17

GN

0.3

5-Volt Reference

X3C1-18

PK

0.3

5-Volt Reference

X3C1-19

BK/WH

0.3

5-Volt Reference

X3C1-20

WH/GN

0.3

5-Volt Reference

X3C1-21

BU

0.3

Low Reference

X3C1-22

L-BU

0.3

Low Reference

Mode Actuator - 1


Object Number: 1989413  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

1

BN

0.3

Mode Actuator 1 - Power

2

BK

0.3

Mode Actuator 1 - Control

3

BU

0.3

Low Reference

4

GY

0.3

Mode Actuator 1 - Feedback

5

GN

0.3

5-Volt Reference

Mode Actuator - 2


Object Number: 1989413  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

1

L-GN

0.3

Mode Actuator 2 - Power

2

OG

0.3

Mode Actuator 2 - Control

3

L-BU

0.3

Low Reference

4

RD

0.3

Mode Actuator 2 - Feedback

5

PK

0.3

5-Volt Reference

Recirculation Actuator


Object Number: 1989413  Size: CH

Connector Part Information

 

Pin

Wire Colour

Wire Size

Function

1

WH/BU

0.3

Recirculation Actuator - Control

2

WH/BK

0.3

Recirculation Actuator - Power

3

BU/BK

0.3

Low Reference

4

WH/RD

0.3

Recirculation Actuator - Feedback

5

WH/GN

0.3

5-Volt Reference