GM Service Manual Online
For 1990-2009 cars only

AF Fuel Pump Relay Connector C007


Object Number: 39685  Size: CH

Connector Part Information

    • 12110539
    • 5 Way F Sealed Flexlock 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

30

GRY

120

Fuel Pump Relay Power

85

RED

920

Switched Ignition Power

86

BRN

905

Fuel Pump Relay Control

87

--

--

Not Used

87A

GRY/BLK

917

Fuel Pump Motor

Fuel Gauge Relay Connector C012


Object Number: 39685  Size: CH

Connector Part Information

    • 12110539
    • 5 Way F Sealed Flexlock 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

30

PPL

30

Fuel Gauge

85

RED

920

Switched Ignition Power

86

GRY

904

Fuel Gauge Relay Control

87

TAN/WHT

928

Fuel Gauge Driver (ECU)

87A

PPL/WHT

918

Fuel Tank Sender Signal

Fuel Gauge Selector Switch/Fuel Indicator Light Connector C254


Object Number: 38600  Size: CH

Connector Part Information

    • 12047781
    • 3 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

912

Fuel Gauge Selector Switch Input

B

PPL

914

Fuel Indicator Light Control

C

RED

920

Switched Ignition Power

Fuel Pressure Sensor (FPS) Connector C452


Object Number: 62485  Size: CH

Connector Part Information

    • 12078090
    • 3 Way F Metri-Pack Sealed 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

930

CNG FPS Sensor Return

B

ORN

931

CNG FPS 5 V Reference

C

GRY

932

CNG FPS Signal

Fuel Temperature Sensor (FTS) Connector C451


Object Number: 236598  Size: CH

Connector Part Information

    • 12052644
    • 2 Way F Metri-Pack Sealed 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

DK BLU

930

CNG FPS Sensor Return

B

BRN

929

CNG FTS Signal

Gas Mass Sensor (GMS) Connector C010


Object Number: 39784  Size: CH

Connector Part Information

    • 12129225
    • 24 Way F Micro-Pack 100 W Series (NAT)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

DK GRN

906

Not Used

3

GRY

903

Engine Sync/Baro

4-5

--

--

Not Used

6

PNK

907

Actual Gas Flow

7

DK BLU

911

Desired Gas Flow

8

--

--

Not Used

9

RED

920

Switched Ignition Power

10-20

--

--

Not Used

21

BLK

450

Ground

22

BLK

450

Ground

23

PNK

921

Motor Power

24

GRY

922

Motor Ground

High Pressure Lock-off (HPL) Connector C453


Object Number: 236598  Size: CH

Connector Part Information

    • 12052641
    • 2 Way F Micro Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

WHT

915

Lock-off Power

B

LT GRN

913

HPL Solenoid Ground

Ignition Relay Connector C004


Object Number: 39685  Size: CH

Connector Part Information

    • 12110539
    • 5 Way F Sealed Flexlock 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

30

ORN

140

Battery Power (12 V)

85

PNK

1020

Ignition Positive Voltage (1)

86

BLK

450

Ground

87

RED

920

Switched Ignition Power

87A

--

--

Not Used

Lock-off Relay Connector C011


Object Number: 39685  Size: CH

Connector Part Information

    • 12110539
    • 5 Way F Sealed Flexlock 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

30

ORN

140

Battery Power (12 V)

85

GRY

120

Fuel Pump Relay

86

BLK

450

Ground

87

PPL

915

Lock-off Power

87A

--

--

Not Used

Low Pressure Lock-off (LPL) Connector C014


Object Number: 236598  Size: CH

Connector Part Information

    • 12052641
    • 2 Way F Micro-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

915

Lock-off Power

B

LT BLU

901

LPL Solenoid Ground

Mixture Control Valve (MCV) Connector C021


Object Number: 237066  Size: CH

Connector Part Information

    • 12162194
    • 2 Way F Metri-Pack 150.2 Series, P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

922

Motor Ground

B

PNK

921

Motor Power

In-line Harness Connector C009


Object Number: 280743  Size: CF

Connector Part Information

    • 12045808
    • 10 Way M Metri-Pack Sealed 150 Series (BLK)

Connector Part Information

    • 12065425
    • 10 Way F Metri-Pack Sealed 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

DK GRN

906

Not Used

A

DK GRN

906

Not Used

B

GRY

903

Engine Sync/Baro

B

GRY

903

Engine Sync/Baro

C

PNK

907

Actual Gas Flow

C

PNK

907

Actual Gas Flow

D

DK BLU

911

Desired Gas Flow

D

DK BLU

911

Desired Gas Flow

E

RED

920

Switched Ignition Power

E

RED

920

Switched Ignition Power

F

BLK

450

Ground

F

BLK

450

Ground

G

BLK

450

Ground

G

BLK

450

Ground

H

PPL

915

Lock-off Power

H

PPL

915

Lock-off Power

J

LT BLU

901

LPL Solenoid Ground

J

LT BLU

901

LPL Solenoid Ground

K

--

--

Not Used

K

--

--

Not Used

In-line Harness Connector C017


Object Number: 280743  Size: CF

Connector Part Information

    • 12065426
    • 10 Way F Metri-Pack 150 Series (MD GRY)

Connector Part Information

    • 12052189
    • 10 Way M Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

BRN/WHT

633

CMP Sensor Signal

A

BRN/WHT

633

CMP Sensor Signal

B

PPL/WHT

430

CKP 7X Reference Signal

B

PPL/WHT

430

CKP 7X Reference Signal

C

PNK

1020

Ignition Positive Voltage (1)

C

PNK

1020

Ignition Positive Voltage (1)

D

DK GRN/WHT

817

VSS Output Signal

D

DK GRN/WHT

817

VSS Output Signal

E

TAN

413

Pre-Converter O2S 1 Low

E

TAN

413

Pre-Converter O2S 1 Low

F

PPL

412

Pre-Converter O2S 1 Signal

F

PPL

412

Pre-Converter O2S 1 Signal

G

DK GRN/WHT

428

EVAP Canister Purge Valve Driver

G

DK GRN/WHT

428

EVAP Canister Purge Valve Driver

H

ORN

140

Battery Power (12 V)

H

ORN

140

Battery Power (12 V)

J

BRN

919

MIL Control (ECU)

J

BRN

919

MIL Control (ECU)

K

BRN/WHT

419

MIL Control (PCM)

K

BRN/WHT

419

MIL Control (PCM)

In-line Harness Connector C018


Object Number: 280743  Size: CF

Connector Part Information

    • 12065424
    • 10 Way F Metri-Pack 150 Series (BLK)

Connector Part Information

    • 12045808
    • 10 Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

YEL

410

ECT Sensor Signal

A

YEL

410

ECT Sensor Signal

B

TAN

472

IAT Sensor Signal

B

TAN

472

IAT Sensor Signal

C

DK BLU

417

TP Sensor Signal

C

DK BLU

417

TP Sensor Signal

D

GRY

474

5 Volt Reference

D

GRY

474

5 Volt Reference

E

LT GRN

432

MAP Sensor Signal

E

LT GRN

432

MAP Sensor Signal

F

BLK/WHT

1704

MAP Sensor Ground

F

BLK/WHT

1704

MAP Sensor Ground

G

BRN

1456

EGR Pintle Position Signal

G

BRN

1456

EGR Pintle Position Signal

H

PNK

439

Ignition Positive Voltage (0)

H

PNK

439

Ignition Positive Voltage (0)

J

PNK

902

NGO Enable

J

PNK

902

NGO Enable

K

--

--

Not Used

K

PPL

901

Serial Data (Class II)

In-line Harness Connector C019


Object Number: 62447  Size: CF

Connector Part Information

    • 12052848
    • 6 Way F Metri-Pack Sealed 150 Series (BLK)

Connector Part Information

    • 12124107
    • 6 Way M Metri-Pack Sealed 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

GRY

120

Fuel Pump Relay

A

GRY

120

Fuel Pump Relay

B

GRY/BLK

917

Fuel Pump Motor

B

GRY/BLK

917

Fuel Pump Motor

C

LT BLU/WHT

1747

IAC Coil A High

C

LT BLU/WHT

1747

IAC Coil A High

D

LT BLU/BLK

1748

IAC Coil A Low

D

LT BLU/BLK

1748

IAC Coil A Low

E

LT GRN/WHT

1749

IAC Coil B High

E

LT GRN/WHT

1749

IAC Coil B High

F

LT GRN/BLK

444

IAC Coil B Low

F

LT GRN/BLK

444

IAC Coil B Low

In-line Harness Connector C250


Object Number: 39763  Size: CF

Connector Part Information

    • 12064769
    • 10 Way F Metri-Pack 150 Series (NAT)

Connector Part Information

    • 12064770
    • 10 Way M Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

PPL/WHT

918

Fuel Tank Sender Signal

A

PPL/WHT

918

Fuel Tank Sender Signal

B

PPL

30

Fuel Gauge

B

PPL

30

Fuel Gauge

C

RED

926

Serial Connector

C

RED

926

Serial Connector

D

BLK

925

Serial Connector

D

BLK

925

Serial Connector

E

WHT

924

Serial Connector

E

WHT

924

Serial Connector

F

DK GRN

923

Serial Connector

F

DK GRN

923

Serial Connector

G-H

--

--

Not Used

G-H

--

--

Not Used

J

PPL

915

Lock-off Power

J

PPL

915

Lock-off Power

K

LT GRN

913

HPL Solenoid Control

K

LT GRN

913

HPL Solenoid Control

In-line Harness Connector C251


Object Number: 258237  Size: CF

Connector Part Information

    • 12064770
    • 10 Way F Metri-Pack 150 Series (NAT)

Connector Part Information

    • 12064769
    • 10 Way M Metri-Pack 150 Series (NAT)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A-C

BLK

450

Not Used

A-C

--

--

--

D

GRY

932

CNG Fuel Pressure Sensor (FPS) Signal

D

GRY

932

CNG Fuel Pressure Sensor (FPS) Signal

E

PPL

929

CNG Fuel Temperature Sensor (FTS) Signal

E

PPL

929

CNG Fuel Temperature Sensor (FTS) Signal

F

BLK

930

CNG Fuel Pressure Sensor (FPS) Return

F

BLK

930

CNG Fuel Pressure Sensor (FPS) Return

G

ORN

931

CNG Fuel Pressure Sensor (FPS) 5 V Reference

G

ORN

931

CNG Fuel Pressure Sensor (FPS) 5 V Reference

H

RED

920

Switched Ignition Power

H

RED

920

Switched Ignition Power

J

BRN

912

Fuel Gauge Selector Switch Input

J

BRN

912

Fuel Gauge Selector Switch Input

K

PPL

914

Fuel Indicator Light Control

K

PPL

914

Fuel Indicator Light Control

In-line Harness Connector C200


Object Number: 62492  Size: CF

Connector Part Information

    • 12092249
    • 23 Way F Metri-Pack 280 Series (BLK)

Connector Part Information

    • 12092248
    • 23 Way M Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

ORN

1240

Fuse Output-Battery-Type III Fuse

A

ORN

1240

Fuse Output-Battery-Type III Fuse

B

BLK/WHT

451

Engine Control Module Ground

B

BLK/WHT

451

Engine Control Module Ground

C

BRN

9

Park Lamp Feed

C

BRN

9

Park Lamp Feed

D

LT BLU

395

Door Handle Switch Signal-Right Front

D

LT BLU

395

Door Handle Switch Signal-Right Front

E

DK GRN

19

Stop Turn Lamp Feed-Right Rear

E

DK GRN

19

Stop Turn Lamp Feed-Right Rear

F

GRY

8

Instrument Panel Feed

F

GRY

8

Instrument Panel Feed

G

BRN

882

Wheel Speed Sensor Signal-Right Rear

G

BRN

882

Wheel Speed Sensor Signal-Right Rear

H

PPL

30

Fuel Gauge Sensor Signal

H

PPL

30

Fuel Gauge Sensor Signal

J

LT GRN

24

Back-up Lamp Feed

J

LT GRN

24

Back-up Lamp Feed

K

WHT

17

Stop Lamp Switch Output

K

WHT

17

Stop Lamp Switch Output

L

YEL

43

Fuse Output-Accessory-Type III Fuse

L

YEL

43

Fuse Output-Accessory-Type III Fuse

M

LT BLU

1134

Park Brake Switch Signal

M

LT BLU

1134

Park Brake Switch Signal

N

YEL

18

Stop Turn Lamp Feed-Left Rear

N

YEL

18

Stop Turn Lamp Feed-Left Rear

P

WHT

883

Wheel Speed Sensor Return-Right Rear

P

WHT

883

Wheel Speed Sensor Return-Right Rear

R

ORN/BLK

1733

Electronic Control Unit Output-12 Volt-Parasitic Load Control

R

ORN/BLK

1733

Electronic Control Unit Output-12 Volt-Parasitic Load Control

S

BLK/WHT

238

Seat Belt Switch Signal

S

BLK/WHT

238

Seat Belt Switch Signal

T-U

--

--

Not Used

T-U

--

--

Not Used

V

DK GRN/WHT

817

Vehicle Speed Signal-4,000 Pulses Per Mile

V

DK GRN/WHT

817

Vehicle Speed Signal-4,000 Pulses Per Mile

W

GRY

120

Fuel Pump Motor Feed

W

GRY

120

Fuel Pump Motor Feed

X

ORN

1732

Electronic Control Unit Output-12 Volt-Inadvertent Load Control

X

ORN

1732

Electronic Control Unit Output-12 Volt-Inadvertent Load Control

Y

BLK

884

Wheel Speed Sensor Signal-Left Rear

Y

BLK

884

Wheel Speed Sensor Signal-Left Rear

Z

RED

883

Wheel Speed Sensor Return-Left Rear

Z

RED

883

Wheel Speed Sensor Return-Left Rear

In-line Harness Connector C200


Object Number: 62492  Size: CF

Connector Part Information

    • 12092249
    • 23 Way F Metri-Pack 280 Series (BLK)

Connector Part Information

    • 12092248
    • 23 Way M Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

ORN

1240

Fuse Output-Battery-Type III Fuse

A

ORN

1240

Fuse Output-Battery-Type III Fuse

B

BLK/WHT

451

Engine Control Module Ground

B

BLK/WHT

451

Engine Control Module Ground

C

BRN

9

Park Lamp Feed

C

BRN

9

Park Lamp Feed

D

LT BLU

395

Door Handle Switch Signal-Right Front

D

LT BLU

395

Door Handle Switch Signal-Right Front

E

DK GRN

19

Stop Turn Lamp Feed-Right Rear

E

DK GRN

19

Stop Turn Lamp Feed-Right Rear

F

GRY

8

Instrument Panel Feed

F

GRY

8

Instrument Panel Feed

G

BRN

882

Wheel Speed Sensor Signal-Right Rear

G

BRN

882

Wheel Speed Sensor Signal-Right Rear

H

PPL/WHT

918

Fuel Gauge Sensor Signal

H

PPL

30

Fuel Gauge Sensor Signal

J

LT GRN

24

Back-up Lamp Feed

J

LT GRN

24

Back-up Lamp Feed

K

WHT

17

Stop Lamp Switch Output

K

WHT

17

Stop Lamp Switch Output

L

YEL

43

Fuse Output-Accessory-Type III Fuse

L

YEL

43

Fuse Output-Accessory-Type III Fuse

M

LT BLU

1134

Park Brake Switch Signal

M

LT BLU

1134

Park Brake Switch Signal

N

YEL

18

Stop Turn Lamp Feed-Left Rear

N

YEL

18

Stop Turn Lamp Feed-Left Rear

P

WHT

883

Wheel Speed Sensor Return-Right Rear

P

WHT

883

Wheel Speed Sensor Return-Right Rear

R

ORN/BLK

1733

Electronic Control Unit Output-12 Volt-Parasitic Load Control

R

ORN/BLK

1733

Electronic Control Unit Output-12 Volt-Parasitic Load Control

S

BLK/WHT

238

Seat Belt Switch Signal

S

BLK/WHT

238

Seat Belt Switch Signal

T-U

--

--

Not Used

T-U

--

--

Not Used

V

DK GRN/WHT

817

Vehicle Speed Signal-4,000 Pulses Per Mile

V

DK GRN/WHT

817

Vehicle Speed Signal-4,000 Pulses Per Mile

W

GRY

120

Fuel Pump Motor Feed

W

GRY

120

Fuel Pump Motor Feed

X

ORN

1732

Electronic Control Unit Output-12 Volt-Inadvertent Load Control

X

ORN

1732

Electronic Control Unit Output-12 Volt-Inadvertent Load Control

Y

BLK

884

Wheel Speed Sensor Signal-Left Rear

Y

BLK

884

Wheel Speed Sensor Signal-Left Rear

Z

RED

883

Wheel Speed Sensor Return-Left Rear

Z

RED

883

Wheel Speed Sensor Return-Left Rear

In-line Harness Connector C253


Object Number: 95860  Size: CF

Connector Part Information

    • 12047781
    • 3 Way F Metri-Pack 150 Series (BLK)

Connector Part Information

    • 12047782
    • 3 Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

BRN

912

Fuel Gauge Selector Switch Input

A

BRN

912

Fuel Gauge Selector Switch Input

B

PPL

914

Fuel Indicator Light Control

B

PPL

914

Fuel Indicator Light Control

C

RED

920

Switched Ignition Power

C

RED

920

Switched Ignition Power

In-line Harness Connector C450


Object Number: 62447  Size: CF

Connector Part Information

    • 12052848
    • 6 Way F Metri-Pack 150 Series (BLK)

Connector Part Information

    • 12124107
    • 6 Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

PPL

915

Lock-off Power

A

PPL

915

Lock-off Power

B

LT GRN

913

HPL Solenoid Ground

B

LT GRN

913

HPL Solenoid Ground

C

ORN

931

CNG Fuel Pressure Sensor (FPS) 5 V Reference

C

ORN

931

CNG Fuel Pressure Sensor (FPS) 5 V Reference

D

GRY

932

CNG Fuel Pressure Sensor (FPS) Signal

D

GRY

932

CNG Fuel Pressure Sensor (FPS) Signal

E

BLK

930

CNG Fuel Pressure Sensor (FPS) Return

E

BLK

930

CNG Fuel Pressure Sensor (FPS) Return

F

PPL

929

CNG Fuel Temperature Sensor (FTS) Signal

E

BLK

929

CNG Fuel Temperature Sensor (FTS) Signal

In-line Harness Connector C454


Object Number: 362724  Size: CF

Connector Part Information

    • 12015791
    • 1 Way F Weather Pack (BLK)

Connector Part Information

    • 12010996
    • 1 Way M Weather Pack (BLK)

Pin

Wire Color

Circuit No.

Function

Pin

Wire Color

Circuit No.

Function

A

PPL

915

Lock-off Power

A

PPL

915

Lock-off Power