GM Service Manual Online
For 1990-2009 cars only

3.1L COMPONENT LOCATION TABLE

Component

Location

Component Locator View

Connector End View

24X Crankshaft Position (CKP) Sensor

Front of engine

Engine Controls Component Views

--

7X Crankshaft Position (CKP) Sensor

Right front side of engine

Engine Controls Component Views

--

A/C Compressor Clutch

RH front of engine compartment

Engine Controls Component Views

--

A/C Compressor Clutch Diode

Left side of engine

Engine Controls Component Views

--

A/C Compressor Clutch Relay

Right rear engine compartment

Engine Controls Component Views

--

A/C Refrigerant Pressure Sensor

RH front of engine compartment

Engine Controls Component Views

--

Automatic Transaxle

Left side of engine compartment

Engine Controls Component Views

--

Brake Switch

LH lower IP below steering column

Lighting Systems Component Views in Lighting Systems

--

Camshaft Position (CMP) Sensor

Front top of engine

Engine Controls Component Views

--

Convenience Center

Left of steering column behind IP

Horn Component Views in Horns

--

Cooling Fan Motor

Front of engine compartment

Engine Controls Component Views

--

Cooling Fan Relay

Right rear engine compartment

Engine Controls Component Views

--

Cruise Control Brake Switch

LH lower IP below steering column

Engine Controls Component Views in Cruise Controls

--

Cruise Control Module

Front of dash

Cruise Control Components in Cruise Controls

--

Data Link Connector (DLC)

LH lower IP

Data Link Communications Component Views in Wiring Systems

--

Engine Compartment Fuse Center

Left side of engine compartment

Power and Grounding Component Views in Wiring System

--

Engine Coolant Level Switch

Right front of engine compartment

Engine Controls Component Views

--

Engine Coolant Temperature (ECT) Sensor

LH rear of engine

Engine Controls Component Views

--

Engine Oil Level Switch

Right rear bottom of engine

Engine Controls Component Views

--

Engine Oil Pressure Sensor

Front right corner of engine

Engine Controls Component Views

--

Evaporative Emission Canister Purge Valve

Rear of engine

Engine Controls Component Views

--

Evaporative Emission Canister Vent Solenoid

Right front corner of engine compartment

Engine Controls Component Views

--

Exhaust Gas Recirculation (EGR) Valve

RH front of engine compartment

Engine Controls Component Views

--

Fuel Injectors

Front top of engine

Engine Controls Component Views

--

Fuel Pump Relay

Right rear of engine compartment

Engine Controls Component Views

--

Fuel Tank Module

Under rear of vehicle

Engine Controls Component Views

--

Fuel Tank Pressure Sensor

Lower rear of car, front of fuel tank

Engine Controls Component Views

--

Fuse Block

Left side of IP

Power and Grounding Component Views in Wiring Systems

--

Generator

RH front of engine compartment

Engine Controls Component Views

--

Heated Front Oxygen Sensor (HO2S 1)

Rear of engine in exhaust manifold

Engine Controls Component Views

--

Heated Rear Oxygen Sensor (HO2S 2)

Center of passenger compartment, under vehicle

Engine Controls Component Views

--

Idle Air Control (IAC) Valve

Front of engine

Engine Controls Component Views

--

Ignition Control (IC) Module

LH rear of engine compartment

Engine Controls Component Views

--

Instrument Panel Cluster (Buick/Oldsmobile)

LH side of IP

Instrument Panel, Gages, and Console Component Views in Instrument Panel Gauges and Console

--

Instrument Panel Cluster (Pontiac)

LH side of IP

Instrument Panel, Gages, and Console Component Views in Instrument Panel Gauges and Console

--

Intake Air Temperature (IAT) Sensor

Left rear of engine

Engine Controls Component Views

--

Knock Sensor (KS)

LH rear of engine

Engine Controls Component Views

--

Manifold Absolute Pressure (MAP) Sensor

Front top of engine

Engine Controls Component Views

--

Mass Air Flow (MAF) Sensor

LH front of engine compartment

Engine Controls Component Views

--

Powertrain Control Module (PCM)

RH front of IP

Engine Controls Component Views

Throttle Position (TP) Sensor

Front of engine

Engine Controls Component Views

--

Transaxle Range (TR) Switch

LH rear of engine compartment

Engine Controls Component Views

--

Vehicle Speed Sensor (automatic)

Right rear of engine

Engine Controls Component Views

--

Vehicle Speed Sensor (manual)

Right rear of engine

Engine Controls Component Views

--

C100

LH upper front of dash

Harness Routing Views in Wiring Systems

--

C120

Rear of engine

Harness Routing Views in Wiring Systems

--

C207

RH lower IP

Harness Routing Views in Wiring Systems

--

C220

Rear of engine

Harness Routing Views in Wiring Systems

--

C313

Rear passenger compartment

Harness Routing Views in Wiring Systems

--

C411

RH upper IP

Harness Routing Views in Wiring Systems

--

G100

Front of engine compartment

Harness Routing Views in Wiring Systems

--

G110

Front of engine compartment

Harness Routing Views in Wiring Systems

--

G111

Left rear of engine compartment

Harness Routing Views in Wiring Systems

--

G200

LH IP near steering column

Harness Routing Views in Wiring Systems

--

G301

Right side of passenger compartment

Harness Routing Views in Wiring Systems

--

P101

Left rear of engine compartment

Harness Routing Views in Wiring Systems

--

P201

RH upper IP

Harness Routing Views in Wiring Systems

--

S106

Engine compartment front of dash

Harness Routing Views in Wiring Systems

--

S109

RH rear of engine compartment

Harness Routing Views in Wiring Systems

--

S110

LH side of engine

Harness Routing Views in Wiring Systems

--

S111

LH side of engine

Harness Routing Views in Wiring Systems

--

S118

Left side of IP

Harness Routing Views in Wiring Systems

--

S119

Engine compartment front of dash

Harness Routing Views in Wiring Systems

 

S140

LH front of dash

Harness Routing Views in Wiring Systems

--

S161

Approx 16 cm from C120 towards injectors

Harness Routing Views in Wiring Systems

--

S171

Engine compartment front of dash

Harness Routing Views in Wiring Systems

--

S172

RH front of IP

Harness Routing Views in Wiring Systems

--

S173

Right rear corner of engine compartment

Harness Routing Views in Wiring Systems

--

S174

LH front of dash

Harness Routing Views in Wiring Systems

--

S195

Right rear corner of engine compartment

Harness Routing Views in Wiring Systems

--

S205

Lower LH side of steering column

Harness Routing Views in Wiring Systems

--

S213

Center IP near HVAC control assembly

Harness Routing Views in Wiring Systems

--

S217

Center IP near HVAC control assembly

Harness Routing Views in Wiring Systems

--

S242

LH upper front of dash

Harness Routing Views in Wiring Systems

--

S277

Center IP near tie bar

Harness Routing Views in Wiring Systems

--

S278

RH rear of engine compartment

Harness Routing Views in Wiring Systems

--

S303

Left rear corner of engine compartment

Harness Routing Views in Wiring Systems

--

S331

Right side of passenger compartment

Harness Routing Views in Wiring Systems

--

S391

Center IP near tie bar

Harness Routing Views in Wiring Systems

--

S415

Engine compartment front of dash

Harness Routing Views in Wiring Systems

--