Repair Diagrams for 2003 Oldsmobile Alero Engine, Transmission, Lighting, AC, Electrical & Warning Systems

Learn how to repair a car or truck, install or remove parts, wire an engine, reset warning lights, replace fuel filter, fix auto body and more. Get Automotix DIY!

Automotix DIY provides automotive consumers and do it yourselfers; the most comprehensive repair information about 2003 Oldsmobile Alero car and truck repair procedures including Oldsmobile engine diagrams, wiring diagrams, repair work estimating measures, technical service bulletins, auto body work guidance, starter & alternator replacement procedures, serpentine belt replacement procedures, radiator & hose replacement procedures, tune-up & drivability specifications, quick lube illustrations, preventive maintenance guide, engine light reset instructions, parts removal and install procedures, fuel filter replacement directions, component location diagrams, air filter locations & replacement instructions, a/c system specifications, and general auto service procedures. You don't have to be a car mechanic or technician to know how to fix your 2003 Oldsmobile Alero automobile. Try the Automotix DIY solution today!

DIY REPAIR SAMPLES > CONTINUE EXPLORING >

We have info for following modifications of 2003 Oldsmobile Alero

2003 Oldsmobile Alero 3.4 V6 GAS, CID:207, Fuel Injection, Aspiration:207, Engine VIN:, Desg:E
2003 Oldsmobile Alero 2.2 L4 GAS, CC:2198, CID:134, Fuel Injection, Aspiration:134, Engine VIN:, Desg:F

WIRING DIAGRAMS FOR 2003 Oldsmobile Alero AUTOMOBILES

OEM drawn wiring diagrams for most 2003 Oldsmobile Alero cars and light trucks sold in the U.S.

2003 Oldsmobile Alero 2.2 L4 GAS Wiring Diagram

Components on diagram:

Radio

Audio Amplifier

2003 Oldsmobile Alero 3.4 V6 GAS Wiring Diagram

Components on diagram:

Park Brake Switch

Brake Fluid Level Switch

Brake Indicator

Body Control Module

2003 Oldsmobile Alero 3.4 V6 GAS Wiring Diagram

Components on diagram:

Rear Window Defogger Grid

Antenna Amplifier Module

Antenna Choke

Heater/Vent/Air Conditioner Control Assembly

Right Rear Defogger

2003 Oldsmobile Alero 2.2 L4 GAS Wiring Diagram

Components on diagram:

Instrument Panel Cluster

Starter Solenoid

Battery

Generator

2003 Oldsmobile Alero 2.2 L4 GAS Wiring Diagram

Components on diagram:

Seat Rear Vertical Motor

Seat Horizontal Motor

Seat Front Vertical Motor

Seat Adjuster Switch -Driver

2003 Oldsmobile Alero 3.4 V6 GAS Wiring Diagram

Components on diagram:

1-2 Shift Solenoid Valve

Vehicle Speed Sensor

Torque Converter Clutch Pulse Width Modulation Solenoid Valve

2-3 Shift Solenoid Valve

Powertrain Control Module

2003 Oldsmobile Alero 3.4 V6 GAS Wiring Diagram

Components on diagram:

Park Brake Switch

Brake Fluid Level Switch

Brake Indicator

Body Control Module

Electronic Brake Control Module

2003 Oldsmobile Alero 2.2 L4 GAS Wiring Diagram

Components on diagram:

License Lamp

Rear Compartment Lid Backup/Tail Lamp -Right Rear

Lamp Assembly -Right Rear

Rear Compartment Lid Backup/Tail Lamp -Left Rear

Lamp Assembly -Left Rear

2003 Oldsmobile Alero 2.2 L4 GAS Wiring Diagram

Components on diagram:

Outside Rearview Mirror Switch

Window Switch -Front Passenger

Window Switch -Driver

Door Lock Switch -Driver

Door Lock Switch -Front Passenger

2003 Oldsmobile Alero 3.4 V6 GAS Wiring Diagram

Components on diagram:

Headlamp Leveling Switch

Headlamp Leveling Actuator Motor -Right

Headlamp Leveling Actuator Motor -Left

CLICK HERE TO GET FULL ACCESS TO 2003 Oldsmobile Alero WIRING DIAGRAMS!

Shop online for auto body parts, engines, wheels, lights...

More parts

Auto Repair Quick Search

Help me find

Search DIY repair manuals by VIN...

Get the Complete Technical Service Bulletins!

Access diagrams and repair information such as wiring diagrams, diagnosis and repair charts, manufacturer service bulletins, and OEM Part numbers of your 2003 Oldsmobile Alero vehicle.