GM Service Manual Online
For 1990-2009 cars only
Table 1: A/C Compressor Clutch
Table 2: A/C Refrigerant Pressure Sensor (ITMS-6F)
Table 3: A/C Refrigerant Pressure Sensor - (MR140)
Table 4: A/C Refrigerant Pressure Sensor (Sirius-D6)
Table 5: Blower Motor
Table 6: Blower Motor Relay
Table 7: Blower Motor Resistor
Table 8: Blower Motor Switch
Table 9: HVAC Control
Table 10: Mode Actuator
Table 11: Recirculation Actuator
Table 12: Security Indicator

A/C Compressor Clutch


Object Number: 1497646  Size: CH

Connector Part Information

    • AK 32232
    • 2-Way F Connector (GY)

Pin

Wire Color

Circuit Number

Function

A

D-GN

59

A/C Compressor Clutch Supply Voltage

B

BK

150

Ground

A/C Refrigerant Pressure Sensor (ITMS-6F)


Object Number: 1497742  Size: CH

Connector Part Information

    • AK 32316
    • 3-Way F Connector (BK)

Pin

Wire Color

Circuit Number

Function

A

OG/BK

469

Low Reference

B

L-BU/BK

1688

5-Volt Reference

C

RD/BK

380

A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor - (MR140)


Object Number: 1497742  Size: CH

Connector Part Information

    • AK 32316
    • 3-Way F Connector (BK)

Pin

Wire Color

Circuit Number

Function

A

BK/WH

1750

Ground

470 (RHD)

B

OG/BK

605

5-Volt Reference

C

RD/BK

380

A/C Refrigerant Pressure Sensor Signal

A/C Refrigerant Pressure Sensor (Sirius-D6)


Object Number: 1497742  Size: CH

Connector Part Information

    • AK 32316
    • 3-Way F Connector (BK)

Pin

Wire Color

Circuit Number

Function

A

BK

470

Low Reference

B

GY/BK

469

5-Volt Reference

C

RD/BK

380

A/C Refrigerant Pressure Sensor Signal

Blower Motor


Object Number: 1468411  Size: CH

Connector Part Information

    • KET MG 610281
    • 2-Way F 312 Connector (WH)

Pin

Wire Color

Circuit Number

Function

1

BK

350

Ground

2

YE

744

Blower Motor Supply Voltage

Blower Motor Relay


Object Number: 1497842  Size: CH

Connector Part Information

    • AK 36409
    • 9-Way F Relay

Pin

Wire Color

Circuit Number

Function

30

RD/D-BU

742

Battery Positive Voltage

85

BK

2250

Ground

86

BN

52

Blower Motor High Control

87

YE/BK

744

Blower Motor Supply Voltage

Blower Motor Resistor


Object Number: 1467011  Size: CH

Connector Part Information

    • KET MG 610047
    • 4-Way F 250 Series (WH)

Pin

Wire Color

Circuit Number

Function

1

PK

743

Blower Motor Speed Signal

2

PU

743

Blower Motor Speed Signal

3

YE

744

Blower Motor Supply Voltage

4

D-BU

743

Blower Motor Speed Signal

Blower Motor Switch


Object Number: 1466990  Size: CH

Connector Part Information

    • AMP 178004-1
    • 4-Way F 250 Series Dbl Lock Plug 4P (WH)

Pin

Wire Color

Circuit Number

Function

B1

PK

743

Blower Motor Speed Signal

B2

YE

743

Blower Motor Speed Signal

B3

D-BU

743

Blower Motor Speed Signal

B4

OG

141

Ignition 3 Voltage

HVAC Control


Object Number: 1467032  Size: CH

Connector Part Information

    • KET MG 610363
    • 20-Way F PCB 040 Series (WH)

Pin

Wire Color

Circuit Number

Function

1

PK/BK

1399

Mode Valve Signal

2

WH/BK

1398

Mode Valve Signal

3

YE/D-BU

1397

Lower Mode Valve Solenoid Control

4

PK

1396

Defrost Mode Valve Solenoid Control

5

D-GN/BK

1395

Upper Mode Valve Solenoid Control

6

--

--

Not Used

7

BN

41

Ignition 3 Voltage

8

OG

1140

Battery Positive Voltage

9

D-GN/BK

1647

Recirculation Door Control B

10

PK/WH

1648

Recirculation Door Control B

11

--

--

Not Used

12

BN/WH

309

Right Park Lamp Supply Voltage

13

D-GN

44

Instrument Panel Lamps Dimming Control

14

--

--

Not Used

15

BK

350

Ground

16

BN

52

Blower Motor High Control

17

YE/BK

831

Right Air Temperature Assembly Signal

18

--

--

Not Used

19

D-GN/WH

762

A/C Request Signal

20

--

--

Not Used

Mode Actuator


Object Number: 1467023  Size: CH

Connector Part Information

    • KET MG 610203
    • 7-Way F 118 (PA) Series (BK)

Pin

Wire Color

Circuit Number

Function

1

YE/D-BU

1397

Lower Mode Valve Solenoid Control

2

PK

1396

Defrost Mode Valve Solenoid Control (LHD)

WH/BK

1398

Mode Valve Signal (RHD)

3

D-GN/BK

1395

Upper Mode Valve Solenoid Control (LHD)

PK/BK

1399

Mode Valve Signal (RHD)

4

BN

41

Ignition 3 Voltage

5

BK

350

Ground

6

PK/BK

1399

Mode Valve Signal (LHD)

D-GN/BK

1395

Upper Mode Valve Solenoid Control (RHD)

7

WH/BK

1398

Mode Valve Signal (LHD)

PK

1396

Defrost Mode Valve Solenoid Control (RHD)

Recirculation Actuator


Object Number: 1467023  Size: CH

Connector Part Information

    • KET MG 610203
    • 7-Way F 118 (PA) Series (BK)

Pin

Wire Color

Circuit Number

Function

1-3

--

--

Not Used

4

BN

41

Ignition 3 Voltage

5

PK/WH

1648

Recirculation Door Control A

6

--

--

Not Used

7

D-GN/BK

1647

Recirculation Door Control B

Security Indicator


Object Number: 1468409  Size: CH

Connector Part Information

    • KET MG 610159
    • 4-Way F 090 Connector (2.3 mm) (WH)

Pin

Wire Color

Circuit Number

Function

1

OG

1140

Battery Positive Voltage

2

YE

749

Security Indicator Control

3

--

--

Not Used

4

--

--

Not Used