GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Express - AWD 🢒 HVAC 🢒 HVAC Systems - Manual 🢒 HVAC Connector End Views
Table 1: A/C Compressor Clutch (C60)
Table 2: A/C High Pressure Switch (C60)
Table 3: A/C Low Pressure Switch (C60)
Table 4: Air Temperature Actuator
Table 5: Air Temperature Actuator - Auxiliary (C69)
Table 6: Blower Motor
Table 7: Blower Motor - Auxiliary (C36/C69)
Table 8: Blower Motor Resistor Assembly
Table 9: Blower Motor Resistor Assembly - Auxiliary (C36/C69)
Table 10: Blower Motor Switch - Auxiliary (C36 w/o C69)
Table 11: HVAC Control Assembly - C1
Table 12: HVAC Control Assembly - C2
Table 13: HVAC Control Assembly - C3 (C49/DE5/DE7)
Table 14: HVAC Control Assembly - Front Auxiliary (Rear Auxiliary Controls)
Table 15: HVAC Control Assembly - Front Auxiliary (w/o Rear Auxiliary Controls)
Table 16: HVAC Control Assembly - Rear Auxiliary (Rear Auxiliary Controls)
Table 17: HVAC Control Processor - Auxiliary (Rear Auxiliary Controls)
Table 18: High Speed Blower Motor Relay - Auxiliary (C36/C69)
Table 19: Low Speed Blower Motor Relay - Auxiliary (C36/C69)
Table 20: Med Speed Blower Motor Relay - Auxiliary (C36/C69)
Table 21: Mode Actuator - Auxiliary (C69)

A/C Compressor Clutch (C60)


Object Number: 684852 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BK

1250

Ground

B

D-GN

59

A/C Compressor Clutch Supply Voltage

A/C High Pressure Switch (C60)


Object Number: 366093 Size: CH

Connector Part Information
    • 15317968
    • 2-Way F Micro-Pack 100W (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN/WH

2523

A/C Request Signal

B

L-GN

66

A/C Request Signal

A/C Low Pressure Switch (C60)


Object Number: 537107 Size: CH

Connector Part Information
    • 12052644
    • 2-Way F Metri-Pack 150 Series- Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

D-GN

603

A/C Low Pressure Switch Signal

B

BK

1250

Ground

Air Temperature Actuator


Object Number: 281207 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BK

550

Ground

8

L-BU

733

Air Temperature Door Control

9

--

--

Not Used

10

BN

341

Ignition 3 Voltage

Air Temperature Actuator - Auxiliary (C69)


Object Number: 281207 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BK

850

Ground

8

OG

2775

Auxiliary Air Temperature Door Control

9

--

--

Not Used

10

BN

341

Ignition 3 Voltage

Blower Motor


Object Number: 684799 Size: CH

Connector Part Information
    • 12077900
    • 2-Way F Metri-Pack 280 Series- Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

1250

Ground

B

PU

65

Blower Motor Supply Voltage

Blower Motor - Auxiliary (C36/C69)


Object Number: 684799 Size: CH

Connector Part Information
    • 12077900
    • 2-Way F Metri-Pack 280 Series- Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

850

Ground

B

YE

1172

Auxiliary Blower Motor Supply Voltage

Blower Motor Resistor Assembly


Object Number: 535914 Size: CH

Connector Part Information
    • 12160746
    • 6-Way F Metri-Pack 280 Series- Flexlock Sealed (L-GY)

Pin

Wire Color

Circuit No.

Function

A

RD/BK

542

Battery Positive Voltage

B

OG

52

Blower Motor High Control

C

BK

1250

Ground

D

TN

63

Blower Motor Medium 1 Control

E

YE

60

Blower Motor Low Control

F

L-BU

72

Medium 2 Blower Motor Control

Blower Motor Resistor Assembly - Auxiliary (C36/C69)


Object Number: 816184 Size: CH

Connector Part Information
    • 12129566
    • 4-Way F Metri-Pack 280 Series- Sealed (GY)

Pin

Wire Color

Circuit No.

Function

A

YE

1176

Auxiliary Blower Motor Low Control

B

--

--

Not Used

C

L-BU

1072

Auxiliary Blower Motor Medium Control

D

YE

1172

Auxiliary Blower Motor Supply Voltage

Blower Motor Switch - Auxiliary (C36 w/o C69)


Object Number: 62456 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

BN/WH

230

Instrument Panel Lamps Dimming Control

B

BK

450

Ground

C

--

--

Not Used

D

WH

1924

Auxiliary Blower Motor High Control

E

D-BU

1926

Auxiliary Blower Motor Low Control

F

OG

1925

Auxiliary Blower Motor Medium Control

HVAC Control Assembly - C1


Object Number: 68737 Size: CH

Connector Part Information
    • 12129489
    • 3-Way F Metri-Pack 280 Series- Flexlock (BK)

Pin

Wire Color

Circuit No.

Function

A

WH

119

Blower Motor Switch Supply Voltage

B

BK

550

Ground

C

BN/WH

230

Instrument Panel Lamps Dimming Control

HVAC Control Assembly - C2


Object Number: 62469 Size: CH

Connector Part Information
    • 12064998
    • 8-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

YE

60

Blower Motor Low Control

B

TN

63

Blower Motor Medium 1 Control

C

L-BU

72

Medium 2 Blower Motor Control

D

OG

52

Blower Motor High Control

E

BN

141

Ignition 3 Voltage

F

L-BU

733

Air Temperature Door Control

G

WH

119

Blower Motor Switch Supply Voltage

H

L-GN

66

A/C Request Signal

HVAC Control Assembly - C3 (C49/DE5/DE7)


Object Number: 62450 Size: CH

Connector Part Information
    • 12052856
    • 4-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

RD/WH

4440

Battery Positive Voltage

B

BN

341

Ignition 3 Voltage

C

BK

550

Ground

D

WH

193

Rear Defog Relay Supply Voltage

HVAC Control Assembly - Front Auxiliary (Rear Auxiliary Controls)


Object Number: 62464 Size: CH

Connector Part Information
    • 12064769
    • 10-Way F Metri-Pack 150 Series (NA)

Pin

Wire Color

Circuit No.

Function

A

BN/WH

230

Instrument Panel Lamps Dimming Control

B

BK

450

Ground

C

D-BU

1926

Auxiliary Blower Motor Low Control

D

WH

1924

Auxiliary Blower Motor High Control

E

OG

1925

Auxiliary Blower Motor Medium Control

F

YE

5262

Front Auxiliary Blower Motor Switch Control

G

BN

341

Ignition 3 Voltage

H

PU

5260

Front Auxiliary Air Temperature Door Control

J

TN

5261

Front Auxiliary Mode Door Control

K

--

--

Not Used

HVAC Control Assembly - Front Auxiliary (w/o Rear Auxiliary Controls)


Object Number: 803688 Size: CH

Connector Part Information
    • 12064871
    • 10-Way F Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

BN/WH

230

Instrument Panel Lamps Dimming Control

B

BK

450

Ground

C

D-BU

1926

Auxiliary Blower Motor Low Control

D

WH

1924

Auxiliary Blower Motor High Control

E

OG

1925

Auxiliary Blower Motor Medium Control

F

BK

450

Ground

G

BN

341

Ignition 3 Voltage

H

OG

2775

Auxiliary Air Temperature Door Control

J

GY

2599

Auxiliary Mode Door Control

K

--

--

Not Used

HVAC Control Assembly - Rear Auxiliary (Rear Auxiliary Controls)


Object Number: 803688 Size: CH

Connector Part Information
    • 12064871
    • 10-Way F Metri-Pack 150 Series (BU)

Pin

Wire Color

Circuit No.

Function

A

BN/WH

230

Instrument Panel Lamps Dimming Control

B

BK

450

Ground

C

D-BU

1926

Auxiliary Blower Motor Low Control

D

WH

1924

Auxiliary Blower Motor High Control

E

OG

1925

Auxiliary Blower Motor Medium Control

F

PK/BK

5265

Rear Auxiliary Blower Motor Switch Control

G

BN

341

Ignition 3 Voltage

H

BN

5263

Rear Auxiliary Air Temperature Door Control

J

PU/WH

5264

Rear Auxiliary Mode Door Control

K

--

--

Not Used

HVAC Control Processor - Auxiliary (Rear Auxiliary Controls)


Object Number: 328486 Size: CH

Connector Part Information
    • 12040747
    • 12-Way P/C Edgeboard - Standard (BK)

Pin

Wire Color

Circuit No.

Function

A

PU

5260

Front Auxiliary Air Temperature Door Control

B

OG

2775

Auxiliary Air Temperature Door Control

C

BN

5263

Rear Auxiliary Air Temperature Door Control

D

PU/WH

5264

Rear Auxiliary Mode Door Control

E

TN

5261

Front Auxiliary Mode Door Control

F

GY

2599

Auxiliary Mode Door Control

G

--

--

Not Used

H

BK

450

Ground

J

BN

341

Ignition 3 Voltage

K

--

--

Not Used

L

PK/BK

5265

Rear Auxiliary Blower Motor Switch Control

M

YE

5262

Front Auxiliary Blower Motor Switch Control

High Speed Blower Motor Relay - Auxiliary (C36/C69)


Object Number: 309518 Size: CH

Connector Part Information
    • 12129715
    • 6-Way F Metri-Pack 280 Series- Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A1

WH

1924

Auxiliary Blower Motor High Control

A2

YE

1172

Auxiliary Blower Motor Supply Voltage

B1-B2

--

--

Not Used

C1

RD/WH

1740

Battery Positive Voltage

C2

BN

341

Ignition 3 Voltage

Low Speed Blower Motor Relay - Auxiliary (C36/C69)


Object Number: 309518 Size: CH

Connector Part Information
    • 12129715
    • 6-Way F Metri-Pack 280 Series- Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A1

D-BU

1926

Auxiliary Blower Motor Low Control

A2

YE

1176

Auxiliary Blower Motor Low Control

B1-B2

--

--

Not Used

C1

RD/WH

1740

Battery Positive Voltage

C2

BN

341

Ignition 3 Voltage

Med Speed Blower Motor Relay - Auxiliary (C36/C69)


Object Number: 309518 Size: CH

Connector Part Information
    • 12129715
    • 6-Way F Metri-Pack 280 Series- Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A1

OG

1925

Auxiliary Blower Motor Medium Control

A2

L-BU

1072

Auxiliary Blower Motor Medium Control

B1-B2

--

--

Not Used

C1

RD/WH

1740

Battery Positive Voltage

C2

BN

341

Ignition 3 Voltage

Mode Actuator - Auxiliary (C69)


Object Number: 281207 Size: CH

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

Pin

Wire Color

Circuit No.

Function

5-6

--

--

Not Used

7

BK

850

Ground

8

GY

2599

Auxiliary Mode Door Control

9

--

--

Not Used

10

BN

341

Ignition 3 Voltage