GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2002 🢒 Savana 🢒 Transmission/Transaxle 🢒 Automatic Transmission - 4L60-E 🢒 HVAC Connector End Views
Table 1: A/C Compressor Clutch
Table 2: A/C High Pressure Switch - Diesel
Table 3: A/C High Pressure Switch - Gas
Table 4: A/C Low Pressure Switch - Diesel
Table 5: A/C Low Pressure Switch - Gas
Table 6: Air Temperature Actuator
Table 7: Air Temperature Actuator - Auxiliary
Table 8: Blower Motor
Table 9: Blower Motor - Auxiliary
Table 10: Blower Motor Relays Low/Medium/High - Auxiliary
Table 11: Blower Motor Resistor Assembly
Table 12: Blower Motor Resistor Assembly - Auxiliary
Table 13: Blower Motor Switch - Auxiliary
Table 14: HVAC Control Assembly C1 Connector
Table 15: HVAC Control Assembly C2 Connector
Table 16: HVAC Control Assembly C3 Connector
Table 17: HVAC Control Assembly - Front Auxiliary
Table 18: HVAC Control Assembly - Rear Auxiliary
Table 19: HVAC Control Processor - Auxiliary
Table 20: Mode Actuator - Auxiliary

A/C Compressor Clutch


Object Number: 684852 Size: CH

Connector Part Information
    • 12162017
    • 2F M/P 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

DK GRN

59

A/C Compressor Clutch Supply Voltage

A/C High Pressure Switch - Diesel


Object Number: 366093 Size: CH

Connector Part Information
    • 15317968
    • 2F Mic/P 100 W (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN/WHT

2523

A/C Request Signal

B

DK GRN

603

A/C Low Pressure Switch Signal

A/C High Pressure Switch - Gas


Object Number: 366093 Size: CH

Connector Part Information
    • 15317968
    • 2F Mic/P 100 W (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN/

WHT

2523

A/C Request Signal

B

LT GRN

66

A/C Request Signal

A/C Low Pressure Switch - Diesel


Object Number: 537107 Size: CH

Connector Part Information
    • 12052638
    • 2F Metri-Pack 150 SLD (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

66

A/C Request Signal

B

DK GRN

603

A/C Low Pressure Switch Signal

A/C Low Pressure Switch - Gas


Object Number: 537107 Size: CH

Connector Part Information
    • 12052644
    • 2F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground - w/o L18

DK GRN

603

A/C Low Pressure Switch Signal - w/L18

B

DK GRN

603

A/C Low Pressure Switch Signal - w/o L18

BLK

150

Ground - w/L18

Air Temperature Actuator


Object Number: 281207 Size: CH

Connector Part Information
    • 12040953
    • 6F Mic/P 100 (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

150

Ground

8

LT BLU

733

Air Temperature Door Position Signal

9

--

--

Not Used

10

BRN

141

Ignition 3 Voltage

Air Temperature Actuator - Auxiliary


Object Number: 281207 Size: CH

Connector Part Information
    • 12040953
    • 6F Mic/P 100 (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

150

Ground

8

DK GRN

734

Auxiliary Air Temperature Door Control

9

--

--

Not Used

10

BRN

341

Ignition 3 Voltage

Blower Motor


Object Number: 258847 Size: CH

Connector Part Information
    • 12077900
    • 2F M/P 280 SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

PPL

65

Blower Motor Supply Voltage

Blower Motor - Auxiliary


Object Number: 684799 Size: CH

Connector Part Information
    • 12077900
    • 2F M/P 280 SLD (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

150

Ground

B

YEL

1172

Auxiliary Blower Motor Supply Voltage

Blower Motor Relays Low/Medium/High - Auxiliary


Object Number: 309518 Size: CH

Connector Part Information
    • 12129715
    • 6F M/P 280 FLXLK (MD GRY)

Pin

Wire Color

Circuit No.

Function

A1

WHT

1924

Auxiliary HVAC Switch Output - High

RED

1925

Auxiliary HVAC Switch Output - Medium

DK BLU

1926

Auxiliary HVAC Switch Output - Low

A2

YEL

1172

Auxiliary Blower Motor Feed - High

LT BLU

1072

Auxiliary Blower Motor Feed - Medium

YEL

1176

Auxiliary Blower Motor Feed - Low

B1-B2

--

--

Not Used

C1

RED

1542

Fuse Output - Battery - Type II Fuse

C2

BRN

341

Fuse Output - IGN 3 - Type III Fuse

Blower Motor Resistor Assembly


Object Number: 535914 Size: CH

Connector Part Information
    • 12160746
    • 6F 280 Series SLD (LT GRY)

Pin

Wire Color

Circuit No.

Function

A

RED

542

Battery Positive Voltage

B

ORN

52

High Blower Motor Control

C

BLK

150

Ground

D

TAN

63

Medium 1 Blower Motor Control

E

YEL

60

Low Blower Motor Control

F

LT BLU

72

Medium 2 Blower Motor Control

Blower Motor Resistor Assembly - Auxiliary


Object Number: 73229 Size: CH

Connector Part Information
    • 12129566
    • 4F M/P 280 SLD (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

YEL

1176

Auxiliary Blower Motor Low Speed Control

B

--

--

Not Used

C

LT BLU

1072

Auxiliary Blower Motor Medium Speed Control

D

YEL

1172

Auxiliary Blower Motor Supply Voltage

Blower Motor Switch - Auxiliary


Object Number: 62456 Size: CH

Connector Part Information
    • 12064752
    • 6F M/P 280 (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Feed

B

BLK

150

Ground

C

--

--

Not Used

D

ORN

52

Auxiliary Blower Motor High Speed Control

E

YEL

60

Auxiliary Blower Motor Low Speed Control

F

TAN

63

Auxiliary Blower Motor Medium Speed Control

HVAC Control Assembly C1 Connector


Object Number: 62469 Size: CH

Connector Part Information
    • 12064998
    • 8F M/P 280 CLIP SLOT (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

60

Blower Switch Output - Low

B

TAN

63

Blower Switch Output - Medium 1

C

LT BLU

72

Blower Switch Output - Medium 2

D

ORN

52

Blower Switch Output - High

E

BRN

141

Ignition 3 Voltage

F

LT BLU

733

Air Temperature Door Position Signal

G

WHT

119

Mode Switch Output

H

LT GRN

66

AIR Conditioning Switch Output

HVAC Control Assembly C2 Connector


Object Number: 62450 Size: CH

Connector Part Information
    • 12052856
    • 4F M/P 280 (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1440

Battery Positive Voltage

B

BRN

141

Ignition 3 Voltage

C

BLK

150

Ground

D

ORN

267

Heated Mirror Element Feed

HVAC Control Assembly C3 Connector


Object Number: 68737 Size: CH

Connector Part Information
    • 12129489
    • 3F M/P 280 TL FLXLK (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

119

Mode Switch Output

B

BLK

150

Ground

C

GRY

8

Instrument Panel Lamp Feed

HVAC Control Assembly - Front Auxiliary


Object Number: 62464 Size: CH

Connector Part Information
    • 12064871
    • 10F M/P 150 (NAT)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Supply Voltage - 1

B

BLK

150

Ground

C

YEL

60

Auxiliary Blower Motor Low Speed Control

D

ORN

52

Auxiliary Blower Motor High Speed Control

E

TAN

63

Auxiliary Blower Motor Medium Speed Control

F

LT BLU

203

Blower Motor Switch Control - Auxiliary - w/Passenger

BLK

150

Ground - w/Cargo

G

BRN

341

Ignition 3 Voltage

H

DK GRN

734

Auxiliary Air Temperature Door Control

J

LT BLU

733

Auxiliary Mode Door Control

K

--

--

Not Used

HVAC Control Assembly - Rear Auxiliary


Object Number: 283791 Size: CH

Connector Part Information
    • 12064871
    • 10F M/P 150 (BLU)

Pin

Wire Color

Circuit No.

Function

A

GRY

8

Instrument Panel Lamp Supply Voltage - 1

B

BLK

150

Ground

C

YEL

60

Auxiliary Blower Motor Low Speed Control

D

ORN

52

Auxiliary Blower Motor High Speed Control

E

TAN

63

Auxiliary Blower Motor Medium Speed Control

F

DK BLU

77

Blower Motor Switch Control - Auxiliary

G

BRN

341

Ignition 3 Voltage

H

DK GRN

734

Auxiliary Air Temperature Door Control

J

LT BLU

733

Auxiliary Mode Door Control

K

--

--

Not Used

HVAC Control Processor - Auxiliary


Object Number: 328486 Size: CH

Connector Part Information
    • 12047887
    • 12-Way P/C Edgeboard (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

734

Auxiliary Air Temperature Door Control

B

DK GRN

734

Auxiliary Air Temperature Door Control

C

DK GRN

734

Auxiliary Air Temperature Door Control

D

LT BLU

733

Auxiliary Mode Door Control

E

LT BLU

733

Auxiliary Mode Door Control

F

LT BLU

733

Auxiliary Mode Door Control

G

--

--

Not Used

H

BLK

150

Ground

J

BRN

341

Ignition 3 Voltage

K

--

--

Not Used

L

DK BLU

77

Blower Motor Switch Control - Auxiliary

M

LT BLU

203

Blower Motor Switch Control - Auxiliary

Mode Actuator - Auxiliary


Object Number: 281207 Size: CH

Connector Part Information
    • 12040953
    • 6F Mic/P 100 (BLK)

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BLK

150

Ground

8

LT BLU

733

Auxiliary Mode Door Control

9

--

--

Not Used

10

BRN

341

Ignition 3 Voltage