GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2001 🢒 Century 🢒 Engine 🢒 Engine Controls - 3.1L (LG8) 🢒 Engine Controls Connector End Views
Table 1: Crankshaft Position (CKP) Sensor B
Table 2: Crankshaft Position (CKP) Sensor A
Table 3: Evaporative Emission (EVAP) Canister Purge Solenoid
Table 4: Evaporative Emission (EVAP) Canister Vent Solenoid
Table 5: Exhaust Gas Recirculation (EGR) Valve
Table 6: Fuel Pump and Sender Assembly
Table 7: Heated Oxygen Sensor (HO2S) 1
Table 8: Heated Oxygen Sensor (HO2S) 2
Table 9: Idle Air Control (IAC) Valve
Table 10: Ignition Control Module (ICM), C1
Table 11: Ignition Control Module (ICM), C2
Table 12: Intake Air Temperature (IAT) Sensor
Table 13: Mass Air Flow (MAF) Sensor
Table 14: Throttle Position (TP) Sensor
Table 15: Vehicle Speed Sensor (VSS)

Crankshaft Position (CKP) Sensor B


Object Number: 237066 Size: CH

Connector Part Information
    • 12192194
    • Metri-Pack 150.2 Series, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

573

CKP Sensor Signal

B

PPL

574

Low Reference

Crankshaft Position (CKP) Sensor A


Object Number: 491634 Size: CH

Connector Part Information
    • 12110293
    • 3-Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

1867

12 Volt Reference

B

LT BLU/BLK

647

Medium Resolution Engine Speed Signal

C

YEL/BLK

1868

Low Reference

Evaporative Emission (EVAP) Canister Purge Solenoid


Object Number: 35437 Size: CH

Connector Part Information
    • 12052643
    • 2-Way F Metri-Pack 150 Series Sealed (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

339

Fused Output-IGN 1

B

DK GRN/WHT

428

EVAP Canister Purge Valve Solenoid Output

Evaporative Emission (EVAP) Canister Vent Solenoid


Object Number: 35437 Size: CH

Connector Part Information
    • 12052643
    • 2-Way F Metri-Pack 150 Series Sealed (RED)

Pin

Wire Color

Circuit No.

Function

A

PNK

339

Ignition 1 Voltage

B

WHT

1310

EVAP Canister Vent Solenoid Control

Exhaust Gas Recirculation (EGR) Valve


Object Number: 594477 Size: CH

Connector Part Information
    • 153263859
    • 5-Way F GT 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

435

EGR Solenoid Low Control

B

BLK

2753

Low Reference

C

BRN

1456

EGR Valve Position Signal

D

GRY

2702

5-Volt Reference

E

WHT

257

EGR Solenoid High Control

Fuel Pump and Sender Assembly


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

PPL

30

Fuel Level Sensor Signal

B

GRY

120

Accessory Voltage

C

BLK

650

Ground

D

BLK/WHT

651

Ground

Heated Oxygen Sensor (HO2S) 1


Object Number: 280761 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

TAN

413

Low Reference

B

PPL

412

HO2S High Signal

C

BLK

1050

Ground

D

BRN

839

Ignition 1 Voltage

Heated Oxygen Sensor (HO2S) 2


Object Number: 280761 Size: CH

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

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

1669

HO2S Low Signal

B

PPL/WHT

1668

HO2S High Signal

C

BLK

1050

Ground

D

PNK

839

Ignition 1 Voltage

Idle Air Control (IAC) Valve


Object Number: 38608 Size: CH

Connector Part Information
    • 12162190
    • 4-Way F Metri-Pack 150.2 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

444

IAC Coil B Low

B

LT GRN/WHT

1749

IAC Coil B High

C

LT BLU/BLK

1748

IAC Coil A Low

D

LT BLU/WHT

1747

IAC Coil A High

Ignition Control Module (ICM), C1


Object Number: 40442 Size: CH

Connector Part Information
    • 12162261
    • 6-Way F Metri-Pack 150.2 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

TAN/BLK

424

Bypass Control

B

TAN/BLK

423

Ignition Control

C-D

--

--

Not Used

E

PPL/WHT

430

3 X Reference Signal

F

RED/BLK

453

Reference Low

Ignition Control Module (ICM), C2


Object Number: 232831 Size: CH

Connector Part Information
    • 12162194
    • 2-Way F Metri-Pack 150.2 Series Pull to Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

BLK/WHT

51

Ground

B

PNK

239

Ignition 1 Voltage

Intake Air Temperature (IAT) Sensor


Object Number: 232831 Size: CH

Connector Part Information
    • 12162199
    • 2-Way F Metri-Pack 150.2 Series, Pull TO Seat (GRY)

Pin

Wire Color

Circuit No.

Function

A

BLK

2760

Low Reference

B

TAN

472

IAT Sensor Signal

Mass Air Flow (MAF) Sensor


Object Number: 516611 Size: CH

Connector Part Information
    • 12059595
    • 3-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

YEL

492

MAF Sensor Signal

B

BLK/WHT

451

Ground

C

PNK

339

Ignition 1 Voltage

Throttle Position (TP) Sensor


Object Number: 68730 Size: CH

Connector Part Information
    • 12110292
    • 3-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRY

2701

5-Volt Reference

B

BLK

2752

Low Reference

C

DK BLU

417

TP Sensor Signal

Vehicle Speed Sensor (VSS)


Object Number: 35437 Size: CH

Connector Part Information
    • 15336004
    • 2-Way F Metri-Pack 150 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

401

Signal Low-Front

B

YEL

400

Signal High-Front