GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1998 🢒 LSS 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 HVAC Connector End Views
Table 1: A/C Clutch
Table 2: A/C Clutch Relay
Table 3: A/C Pressure Sensor
Table 4: Blower Motor High-Speed Relay
Table 5: Blower Motor Relay
Table 6: Blower Motor Resistor
Table 7: Heater and A/C Control C1 (Buick with C67)
Table 8: Heater and A/C Control C2 (Buick with C67)
Table 9: Heater and A/C Control C1 (Oldsmobile with C61)
Table 10: Heater and A/C Control C2 (Oldmobile with C61)
Table 11: Heater and A/C Control C3 (Oldsmobile with C61)
Table 12: Heater and A/C Control C1 (Pontiac with C61)
Table 13: Heater and A/C Control C2 (Pontiac with C61)
Table 14: Heater and A/C Vacuum Valve (Buick with C67)
Table 15: Temperature Valve Actuator

A/C Clutch


Object Number: 35437 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

DK GRN

59

A/C Compressor Clutch Solenoid Feed

B

BLK

1450

Ground

A/C Clutch Relay


Object Number: 39670 Size: CH

Connector Part Information
    • 12110787
    • 4-Way F Metri-Pack 280 Series (MD GRA)

Pin

Wire Color

Circuit No.

Function

30

PNK

239

Fused Output - Ignition 1

85

DK GRN/WHT

459

Air Conditioning Compressor Control Relay Output - Ignition 1

86

PNK

239

Fused Output - Ignition 1

87

DK GRN

59

Air Conditioning Compressor Clutch Solenoid Feed

A/C Pressure Sensor


Object Number: 219804 Size: CH

Connector Part Information
    • 12110192
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

808

Sensor Return

B

GRY

474

5 Volt Reference Feed

C

RED/BLK

380

A/C Refrigerant Pressure Sensor Signal

Blower Motor High-Speed Relay


Object Number: 39670 Size: CH

Connector Part Information
    • 12110787
    • 4-Way F Metri-Pack 280 Series (MD GRA)

Pin

Wire Color

Circuit No.

Function

30

BRN

41

Fused Output - Ignition 3

85

BRN

41

Fused Output - Ignition 3

86

BRN

247

Blower Enable Relay Output - Coil

87

LT BLU

1888

Cruise Control Servo Clutch Output

Blower Motor Relay


Object Number: 39685 Size: CH

Connector Part Information
    • 12110538
    • 5-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

30

PPL

65

Blower Motor Feed

85

ORN

52

Blower Switch Output - High

86

BLK

1550

Ground

87

RED

442

Fused Output - Battery

87

DK BLU

101

Blower Resistor Output

Blower Motor Resistor


Object Number: 39662 Size: CH

Connector Part Information
    • 12048415
    • 4-Way F Metri-Pack 480 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

101

Blower Resistor Output

B

LT BLU

72

Blower Switch Output - Medium 2

C

TAN

63

Blower Switch Output - Medium 1

D

LT BLU

188

Blower Enable Relay Output - N.O. Contact (Buick)

D

YEL

60

Blower Switch Output - Low (Oldsmobile and Pontiac)

Heater and A/C Control C1 (Buick with C67)


Object Number: 62456 Size: CH

Connector Part Information
    • 12064752
    • 6-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

TAN

63

Blower Switch Output - Medium 1

C

ORN

52

Blower Switch Output - High

D

LT BLU

72

Blower Switch Output - Medium 2

E

LT BLU

188

Blower Enable Relay - N.O. Contact

F

--

--

Not Used

Heater and A/C Control C2 (Buick with C67)


Object Number: 73152 Size: CH

Connector Part Information
    • 12110259
    • 16 Way F Micro-Pack 100 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A1

BRN

247

Blower Enable Relay Output-Coil

A2

DK BLU

1199

Air Temperature Valve Motor Feed

A3

GRY

8

Instrument Panel Lamp Feed

A4

PPL/WHT

724

Vacuum Fluorescent Dimming Signal

A5

--

--

Not Used

A6

YEL

1791

Air Temperature Valve Motor Return

A7

BLK

1250

Ground

A8

BRN

1141

Fused Output-IGN

B1

WHT

193

Rear Defogger Relay Output-Coil

B2

LT GRN

66

A/C Switch Output

B3

PNK

1396

A/C Switch Signal-Defroster Solenoid Control

B4

LT GRN

1395

A/C Switch Signal-Vent Solenoid Control

B5

PPL

1397

A/C Switch Signal-Heat Solenoid Control

B6

DK GRN

1394

A/C Switch Signal-A/C Solenoid Control

B7-B8

--

--

Not Used

Heater and A/C Control C1 (Oldsmobile with C61)


Object Number: 62439 Size: CH

Connector Part Information
    • 12047886
    • 8-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

66

Air Conditioning Switch Output

B

BLK

1250

Ground

C

ORN

40

Fuse Output - Battery - Type III Fuse

D

GRA

8

Instrument Panel Lamp Feed

E

YEL

1791

Air Temperature Valve Motor Return

F-G

--

--

Not Used

H

DK BLU

1199

Air Temperature Valve Motor Feed

Heater and A/C Control C2 (Oldmobile with C61)


Object Number: 62456 Size: CH

Connector Part Information
    • 12064752
    • 6-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

193

Rear Defogger Relay Output - Coil

B

BRN

41

Fuse Output - Ignition

C

ORN

60

Blower Switch Output - Low

D-F

--

--

Not Used

Heater and A/C Control C3 (Oldsmobile with C61)


Object Number: 232132 Size: CH

Connector Part Information
    • 12020813
    • 5-Way F Metri-Pack 680 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

ORN

52

Blower Switch Output - High

C

TAN

63

Blower Switch Output - Medium 1

D

LT BLU

72

Blower Switch Output - Medium 2

E

YEL

60

Blower Switch Output - Low

Heater and A/C Control C1 (Pontiac with C61)


Object Number: 288397 Size: CH

Connector Part Information
    • 12015344
    • 6-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

D

PPL

293

Rear Defogger Element

A

TAN

63

Blower Switch Output - Medium 1

C

ORN

1140

Fuse Output - Battery- Type III fuse

B

LT BLU

72

Blower Switch Output - Medium 2

E

BRN

41

Fuse Output - Ignition 3-Type III Fuse

F

Yel

60

Blower Switch Output- L

Heater and A/C Control C2 (Pontiac with C61)


Object Number: 62434 Size: CH

Connector Part Information
    • 12065398
    • 8-Way F Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

66

Air Conditioning Switch Output

B

BLK

1250

Ground

C

ORN

52

Blower Switch Output - High

D

GRA

8

Instrument Panel Lamp Feed

E

YEL

1791

Air Temperature Valve Motor Return

F

BLK

1250

Ground

G

DK BLU

1199

Air Temperture Valve Motor Feed

H

BRN

41

Fuse Output - Ignition

Heater and A/C Vacuum Valve (Buick with C67)


Object Number: 40427 Size: CH

Connector Part Information
    • 12064978
    • 6-Way F Micro-Pack 100 Series (GRA)

Pin

Wire Color

Circuit No.

Function

1

DK GRN

1394

Air Conditioning Switch Signal - Air Conditioning Solenoid Control

2

LT GRN

1395

Air Conditioning Switch Signal - Vent Solenoid Control

3

PNK

1396

Air Conditioning Switch Signal - Defrost Solenoid Control

4

PPL

1397

Air Conditioning Switch Signal - Heat Solenoid Control

5

BRN

41

Fused Output - Ignition 3

6

--

--

Not Used

Temperature Valve Actuator


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

YEL

1791

Air Temperature Valve Motor Return

8

DK BLU

1199

Air Temperature Valve Motor Feed

9

--

--

Not Used

10

BRN

41

Fused Output - Ignition 3 (Buick)

10

BRN

41

Fused Output - Ignition 3 (Oldsmobile)