GM Service Manual Online
For 1990-2009 cars only

Component Location

Name

Location

8A Cell 201 Figure:

Connector End View

Group No.

A/C Compressor Clutch Relay

Underhood electrical Center

--

--

--

A/C Cycling Switch

RH rear of the engine compartment, attached to the A/C accumulator

--

--

--

A/C Refrigerant Pressure Sensor

In high pressure line, below coolant reservoir

12

--

--

Bank #1, Left Front Heated Oxygen Sensor (HO2S)

Lower LH side of the Engine, Forward of the Three-way Catalytic Converter (TWC)

--

--

--

Bank #1, Left Rear Heated Oxygen Sensor (HO2S)

Lower RH side of the Engine, Rear of the Three-way Catalytic Converter (TWC)

--

--

--

Bank #2, Right Front Heated Oxygen Sensor (HO2S)

Lower RH side of the Engine, Forward of the Three-way Catalytic Converter (TWC)

--

--

--

Bank #2, Right Rear Heated Oxygen Sensor (HO2S)

Lower RH side of the Engine, Rear of the Three-way Catalytic Converter (TWC)

--

--

--

Crankshaft (CKP) Position Sensor

Lower right side of the Engine, in the Front Engine Cover

--

--

--

Data Link Connector (DLC)

Below LH side of the I/P, right of the Steering Column

22

--

--

Distributor

Front of the Engine behind the Engine Coolant Pump

12

--

--

Engine Coolant Temperature (ECT) Sensor

Lower front of the Engine, mounted to the Coolant Pump

16

--

--

Engine Oil level Sensor

LH side of the Engine Oil pan

--

--

--

Evaporative Emissions (EVAP) Canister Purge Solenoid Valve

Top RH front of the Engine, near the Manifold Absolute Pressure (MAP) Sensor

12

--

--

Evaporative Emission Vacuum Switch

Forward of the EVAP Canister Purge Solenoid Valve, Right side of the Engine

--

--

--

Exhaust Gas Recirculation (EGR) Solenoid Valve

Top LH Rear of the Engine, near the EGR Valve

11

--

--

Fuel Injectors

Top of the Engine in the Fuel Rail above each Cylinder

11, 12

--

--

Fuel Pump

Rear of the Vehicle in the Fuel Tank

--

--

--

Fuel Pump Relay

Underhood electrical Center

--

--

--

I/P Fuse Block

LH I/P, accessible with LH front door open

19

--

--

Idle Air Control (IAC) Motor

Top RH Front of the Engine on the side of the Throttle Body

12

--

--

Ignition Coil

LH Front of the Engine

11

--

--

Ignition Coil Module

LH Front of the Engine

11

--

--

Intake Air Temperature (IAT) Sensor

Front of the Engine, in the side of the Air Intake Duct

12

--

--

Instrument Cluster

LH side of the I/P

16

--

--

Knock Sensor, LH

Bottom LH side of the Engine below the Exhaust Manifold

--

--

--

Knock Sensor, RH

Bottom RH side of the Engine below the Exhaust Manifold

--

--

--

Manifold Absolute Pressure (MAP) Sensor

Top RH Front of the Engine, Mounted to the Intake Manifold

12

--

--

Mass Air Flow (MAF) Sensor

Front of the Engine, in the Air Intake Duct

--

--

--

Park Neutral Position switch

Near base of steering column, on column or near floor mounted shifter

--

--

--

Power steering pressure switch

In power steering line near the power steering pump

--

--

--

Powertrain Control Module (PCM)

Engine Compartment, forward of LH wheelhouse under air cleaner

8

--

--

Secondary Air Injection (AIR) Bleed Valve Solenoid

Left Side of the Engine Compartment, attached to the AIR Pump

--

--

--

Secondary Air Injection (AIR) Pump

LH Front of the Engine

1

--

--

Secondary Air Injection (AIR) Pump Relay

Underhood electrical center

--

--

--

Throttle Position (TP) Sensor

Top RH Front of the Engine on the side of the Throttle Body

12

--

--

Theft deterrent module

Behind left hand I/P, left of the brake pedal bracket

19

--

--

Underhood electrical center

Engine Compartment, attached to the RH Wheelhouse

1

--

--

Vehicle speed sensor

RH rear of the transmission, near the prop shaft

28

--

--