GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 1999 🢒 S/T Isuzu - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 HVAC Connector End Views
Table 1: A/C Compressor Clutch
Table 2: A/C Compressor Cycling Switch (4.3L Engine)
Table 3: A/C Compressor High Pressure Cutoff Switch (4.3L Engine)
Table 4: A/C Refrigerant Pressure Sensor (2.2L Engine)
Table 5: Air Temperature Valve Sensor and Motor
Table 6: Blower Motor
Table 7: Blower Motor Relay
Table 8: Blower Motor Resistor
Table 9: Heater and A/C Controller Connector C1
Table 10: Heater and A/C Controller Connector C2
Table 11: Heater and A/C Controller Connector C3
Table 12: Heater and A/C Controller Connector C4
Table 13: Heater and A/C Controller Connector C5

A/C Compressor Clutch


Object Number: 280759 Size: CH

Connector Part Information
    • 12162017
    • 2-Way F Metri-Pack 150 Series Sealed (MED GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

350

Ground

B

DK GRN

59

Air Conditioning Compressor Clutch Solenoid Feed

A/C Compressor Cycling Switch (4.3L Engine)


Object Number: 38562 Size: CH

Connector Part Information
    • 12162436
    • 2-Way F Metri-Pack 150 Series Sealed Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

603

Air Conditioning Refrigerant Low Pressure Cut - Out Switch Output

B

BLK/WHT

351

Ground - Clean

A/C Compressor High Pressure Cutoff Switch (4.3L Engine)


Object Number: 38560 Size: CH

Connector Part Information
    • 12162438
    • 2-Way F Metri-Pack 150 Series Sealed Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

203

Air Conditioning Refrigerant High Pressure Cut - Out Switch Output

B

DK GRN/WHT

762

Air Conditioning Request Signal

A/C Refrigerant Pressure Sensor (2.2L Engine)


Object Number: 258299 Size: CH

Connector Part Information
    • 12110192
    • 2-Way F Metri-Pack 150 Series, Sealed Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

552

Sensor Return

B

GRY

596

Reference Voltage Feed - 5 Volt Reference

C

RED/BLK

380

Air Conditioning Refrigerant Pressure Sensor Signal

Air Temperature Valve Sensor and Motor


Object Number: 281207 Size: CH

Connector Part Information
    • 12040953
    • 6-Way F Micro-Pack 100 Series (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

1850

Ground

8

LT BLU

733

Air Temperature Valve Position Sensor Signal

9

--

--

Not Used

10

BRN

341

Fuse Output - Ignition

Blower Motor


Object Number: 62489 Size: CH

Connector Part Information
    • 12066681
    • 2-Way F Metri-Pack 630 Series, Sealed, Pull-to-Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

65

Blower Motor Feed

B

BLK

850

Ground

Blower Motor Relay


Object Number: 39685 Size: CH

Connector Part Information
    • 12110539
    • 5-Way F Metri-Pack 280 Series, Flex Lock, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

30

PPL

65

Blower Motor Feed

85

BLK

850

Ground

86

ORN

52

Blower Switch Output - High

87

ORN

540

Fuse Output - Battery - Type III Fuse

87A

DK BLU

101

Blower Resistor Output

Blower Motor Resistor


Object Number: 39662 Size: CH

Connector Part Information
    • 12048412
    • 4-Way F Metri-Pack 480 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

72

Blower Switch Output - Medium 2

B

BRN

64

High Speed Blower Relay Feed - Coil

C

DK BLU

101

Blower Resistor Output

D

TAN

63

Blower Switch Output - Medium 1

Heater and A/C Controller Connector C1


Object Number: 362756 Size: CH

Connector Part Information
    • 12191271
    • Printed Circuit Connectors Bow Series, Pull-to-Seat (GRY)

Pin

Wire Color

Circuit No.

Function

1

GRY

1220

Fuse Output - Instrument Panel Lamps

2-4

--

--

Not Used

5

BLK

1050

Ground

6-10

--

--

Not Used

Heater and A/C Controller Connector C2


Object Number: 362749 Size: CH

Connector Part Information
    • 12162512
    • 3-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

203

Air Conditioning Refrigerant High Pressure Cut - Out Switch Feed

B

BRN

64

High Speed Blower Relay Feed - Coil

C

BRN

141

Fuse Output - Ignition

Heater and A/C Controller Connector C3


Object Number: 38598 Size: CH

Connector Part Information
    • 12034146
    • 3-Way F Metri-Pack 280 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

341

Fuse Output - Ignition

B

LT BLU

733

Air Temperature Valve Position Sensor Signal

C

BLK

1050

Ground

Heater and A/C Controller Connector C4


Object Number: 232132 Size: CH

Connector Part Information
    • 12020813
    • 5-Way F Metri-Pack 630 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

52

Blower Switch Output - High

B

LT BLU

72

Blower Switch Output - Medium 2

C

TAN

63

Blower Switch Output - Medium 1

D

--

--

Not Used

E

BRN

64

High Speed Blower Relay Feed - Coil

Heater and A/C Controller Connector C5


Object Number: 73210 Size: CH

Connector Part Information
    • 12059162
    • 4-Way F Micro-Pack 100 Series (BLU)

Pin

Wire Color

Circuit No.

Function

1

GRY

1220

Fuse Output - Instrument Panel Lamps

2

BRN

341

Fuse Output - Ignition

3

WHT

393

Rear Window Wiper Motor Feed

4

BLK

1050

Ground