GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2003 🢒 LeSabre 🢒 Body and Accessories 🢒 Wiring Systems 🢒 Engine Controls Connector End Views
Table 1: Stop Lamp Switch
Table 2: Camshaft Position (CMP) Sensor
Table 3: Crankshaft Position (CKP) Sensor
Table 4: Engine Coolant Temperature (ECT) Sensor
Table 5: Engine Oil Level Switch
Table 6: Engine Oil Pressure Sensor
Table 7: Evaporative Emissions (EVAP) Canister Purge Solenoid
Table 8: Evaporative Emissions (EVAP) Canister Vent Valve
Table 9: Exhaust Gas Recirculation (EGR) Valve
Table 10: Fuel Injectors
Table 11: Fuel Pump and Sender Assembly
Table 12: Fuel Tank Pressure Sensor
Table 13: Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
Table 14: Heated Oxygen Sensor HO2S Bank 1 Sensor 2
Table 15: Idle Air Control (IAC) Valve
Table 16: Ignition Control Module (ICM)
Table 17: Intake Air Temperature (IAT) Sensor
Table 18: Knock Sensor, (KS) Bank 1
Table 19: Knock Sensor, (KS) Bank 2
Table 20: Manifold Absolute Pressure (MAP) Sensor (VIN K)
Table 21: Mass Air Flow (MAF) Sensor
Table 22: Throttle Position (TP) Sensor
Table 23: Vehicle Speed Sensor (VSS)

Stop Lamp Switch


Object Number: 258178 Size: CH

Connector Part Information
    • 12033705
    • 4-Way Metri-Pack 280 Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

PNK

1039

Ignition 1 Voltage

B

PPL

420

TCC Brake Switch Signal

C

BLK/WHT

351

Ground

D

GRY

847

Extended Travel Brake Switch Signal

Camshaft Position (CMP) Sensor


Object Number: 73223 Size: CH

Connector Part Information
    • 12162272
    • 3-Way F Metri-Pack 150.1 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

BRN/WHT

633

CMP Sensor Signal

B

BLK/WHT

836

Low Reference

C

WHT/BLK

644

10 Volt Reference

Crankshaft Position (CKP) Sensor


Object Number: 280765 Size: CH

Connector Part Information
    • 12162724
    • 4-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

LT BLU/

WHT

1800

CKP Sensor 2 Signal

B

YEL

573

CKP Sensor 1 Signal

C

BLK/WHT

836

Low Reference

D

WHT/BLK

644

10 Volt Reference

Engine Coolant Temperature (ECT) Sensor


Object Number: 518983 Size: CH

Connector Part Information
    • 12162194
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

470

Low Reference

B

YEL

410

ECT Sensor Signal

Engine Oil Level Switch


Object Number: 35437 Size: CH

Connector Part Information
    • 12052641
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

1174

Oil Level Switch Signal

B

BLK/WHT

1551

Ground

Engine Oil Pressure Sensor


Object Number: 258299 Size: CH

Connector Part Information
    • 12065286
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

808

Low Reference

B

GRY

605

5 Volt Reference

C

TAN/WHT

331

Oil Pressure Sensor Signal

Evaporative Emissions (EVAP) Canister Purge Solenoid


Object Number: 35437 Size: CH

Connector Part Information
    • 12124037
    • 2-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

139

Ignition 1 Voltage

B

DK GRN/WHT

428

EVAP Canister Purge Solenoid Control

Evaporative Emissions (EVAP) Canister Vent Valve


Object Number: 35437 Size: CH

Connector Part Information
    • 12052637
    • 2-Way F Metri-Pack 150 Series, Sealed (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

39

Ignition 1 Voltage

B

WHT

1310

EVAP Canister Vent Solenoid Control

Exhaust Gas Recirculation (EGR) Valve


Object Number: 68773 Size: CH

Connector Part Information
    • 12186055
    • 5-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

435

EGR Solenoid Control

B

BLK

552

Low Reference

C

BRN

1456

EGR Valve Position Signal

D

GRY

605

5 Volt Reference

E

WHT

257

EGR Solenoid Control

Fuel Injectors


Object Number: 366123 Size: CH

Connector Part Information
    • 15326181
    • 2-Way F Micro-Pack 64 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PNK

1039

Ignition 1 Voltage

B

BLK

1744

Fuel Injector 1 Control

B

LT GRN/

BLK

1745

Fuel Injector 2 Control

B

PNK/BLK

1746

Fuel Injector 3 Control

B

LT BLU/

BLK

844

Fuel Injector 4 Control

B

BLK/WHT

845

Fuel Injector 5 Control

B

YEL/BLK

846

Fuel Injector 6 Control

Fuel Pump and Sender Assembly


Object Number: 258300 Size: CH

Connector Part Information
    • 12160479
    • 4-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

30

Fuel Level Sensor Signal

B

GRY

120

Fuel Pump Supply Voltage

C

BLK

650

Ground

D

BLK/WHT

651

Ground

Fuel Tank Pressure Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 12059596
    • 3-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

808

Low Reference

B

DK GRN

890

Fuel Tank Pressure Sensor Signal

C

PNK/BLK

605

5 Volt Reference

Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1


Object Number: 258300 Size: CH

Connector Part Information
    • 12160482
    • 4-Way F Metri-Pack 150 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN

413

HO2S 1 Low Signal

B

PPL

412

HO2S 1 High Signal

C

BLK/WHT

1150

Ground

D

PNK

539

Ignition 1 Voltage

Heated Oxygen Sensor HO2S Bank 1 Sensor 2


Object Number: 40407 Size: CH

Connector Part Information
    • 12160825
    • 4-Way M Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1671

HO2S 2 Low Signal)

B

TAN

1670

HO2S 2 High Signal

C

BLK

1150

Ground

D

PNK

539

Ignition 1 Voltage

Idle Air Control (IAC) Valve


Object Number: 38608 Size: CH

Connector Part Information
    • 12162187
    • 4-Way F Metri-Pack 150.2 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/

BLK

444

IAC Coil B Low Control

B

LT GRN/

WHT

1749

IAC Coil B High Control

C

LT BLU/

BLK

1748

IAC Coil A Low Control

D

LT BLU/

WHT

1747

IAC Coil A High Control

Ignition Control Module (ICM)


Object Number: 302002 Size: CH

Connector Part Information
    • 12052493
    • 14-Way F Metri-Pack 150 Series, Sealed (DK GRY)

Pin

Wire Color

Circuit No.

Function

A

WHT

423

IC Timing Control

B

TAN/BLK

424

IC Timing Signal

C

BLU/BLK

647

Medium Resolution Engine Speed Signal

D

PPL/WHT

430

Low Resolution Engine Speed Signal

E

WHT

121

Engine Speed Signal

F

BLK

630

Camshaft Position Signal

G

YEL

573

CKP Sensor 1 Signal

H

LT BLU/

WHT

1800

CKP Sensor 2 Signal

J

BRN/WHT

633

CMP Sensor Signal

K

BLK/WHT

451

Ground

L

RED/BLK

453

Low Reference

M

BLK/WHT

836

Low Reference

N

WHT/BLK

644

10 Volt Reference

P

PNK

839

Ignition 1 Voltage

Intake Air Temperature (IAT) Sensor


Object Number: 68719 Size: CH

Connector Part Information
    • 12162196
    • 2-Way F Metri-Pack 150.2 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

RED/BLK

645

Low Reference

B

TAN

472

IAT Sensor Signal

Knock Sensor, (KS) Bank 1


Object Number: 95764 Size: CH

Connector Part Information
    • 12176800
    • 1-Way F Metri-Pack 150 Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

1

DK BLU

496

KS 1 Signal

Knock Sensor, (KS) Bank 2


Object Number: 95764 Size: CH

Connector Part Information
    • 12176800
    • 1-Way F Metri-Pack 150 Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

1

LT BLU

1876

Knock Sensor 2 Signal

Manifold Absolute Pressure (MAP) Sensor (VIN K)


Object Number: 68740 Size: CH

Connector Part Information
    • 12129945
    • 3-Way F Metri-Pack 150 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN/BLK

469

Low Reference

B

LT GRN

432

MAP Sensor Signal

C

GRY

605

5 Volt Reference

Mass Air Flow (MAF) Sensor


Object Number: 62453 Size: CH

Connector Part Information
    • 12059596
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

492

MAF Sensor Signal

B

BLK/WHT

1551

Ground

C

PNK

139

Ignition 1 Voltage

Throttle Position (TP) Sensor


Object Number: 68730 Size: CH

Connector Part Information
    • 12110294
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK

452

Low Reference

B

DK BLU

417

TP Sensor Signal

C

GRY/BLK

605

5 Volt Reference

Vehicle Speed Sensor (VSS)


Object Number: 62471 Size: CH

Connector Part Information
    • 12162192
    • 2-Way F Metri-Pack 150.2 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

401

VSS Low Signal

B

YEL

400

VSS High Signal