Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Toyota Matrix Base, FWD, AutomaticFACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis
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Quick Lookups- Accessories & Equipment
- Anti-Theft Systems
- Cruise Control Systems
- Entertainment Systems
- Exterior Lights
- Gauges & Instrument Panels
- Headlights
- Heated Glass/Defoggers
- Horns
- Ignition Switch/Steering Lock
- Infotainment
- Amplifier Antenna Assembly
- Antenna Cord Sub-Assembly
- Antenna Pole Sub-Assembly
- Audio & Visual System
- Audio & Visual System - Specifications
- Audio System - Diagnostics
- Disc Player Changer
- Front No.1 Speaker Assembly
- Front No.2 Speaker Assembly
- Navigation Antenna Assembly
- Navigation Antenna Chord Sub-Assembly
- Navigation Receiver Assembly
- Navigation System - Diagnostics
- Power Point Socket Assembly
- Power Point Socket Assembly No. 2
- Radio Receiver Assembly
- Rear Speaker Assembly
- Roof Antenna Pole Sub-Assembly
- Interior/Exterior Trim
- Mirrors
- Seats
- Window Motors & Regulators
- Wiper/Washer Systems
- Body & Frame
- Brakes
- Drivelines & Axles
- Electrical
- Engine Mechanical
- Auxiliary Emission Control Systems
- Cooling Fan
- Cooling System (Mechanical)
- Exhaust
- Lubrication System
- Mechanical
- Block Heater
- Cylinder Head Gasket - 1ZZ-FE
- Engine Assembly (Inspection) - 1ZZ-FE
- Engine Controls - Service & Adjustment Specifications
- Engine Mechanical
- Engine Mechanical - Specifications
- Engine Mechanical Camshaft - 1ZZ-FE
- Engine Mechanical Cylinder Block Assembly - 1ZZ-FE
- Engine Mechanical Cylinder Head Assembly - 1ZZ-FE
- Engine Mechanical Timing Chain Sub-Assembly - 1ZZ-FE
- Engine Rear Oil Seal - 1ZZ-FE
- Partial Engine Assembly - 1ZZ-FE
- Timing Gear Cover Oil Seal - 1ZZ-FE
- TOYOTA Engine Code Identification
- Valve Clearance - 1ZZ-FE
- Starter
- Engine Performance
- General Information
- Abbreviations
- Basic Trouble Shooting
- Brakes
- Check Lists
- Computer Relearn Procedures
- OBD-II Drive Cycles
- Driveline/Axles
- DTC Index
- Electrical
- Engine
- Engine Performance
- Electrostatic Discharge Warning - General Information
- Engine Performance Diagnostic Routine Outline - General Information
- Engine Performance Safety Precautions
- Map - Engine Performance & Maintenance
- Parasitic Load Explanation & Test Procedures - General Information
- State Emission Standards - Diesel
- State Emission Standards - Gas
- Waveforms - Injector Pattern Tutorial - General Information
- Map - Exhaust Systems
- Heating, Ventilation & A/C (HVAC)
- Hoist/Jack
- Identification
- Metric Conversions
- OEM General Information
- Restraints
- Specifications Index
- Steering
- Towing
- Traction Control Disable Procedures
- Trouble Shooting - Manual Transmission - General Information
- Heating, Ventilation & A/C (HVAC)
- Restraints
- Steering
- Suspension
- Transmission
- Automatic Trans
- Automatic Transmission - Specifications
- Automatic Transmission (A245E, A246E) (Overhaul)
- Automatic Transmission Application
- Automatic Transmission Electronic Controlled (ECT) - A246E - Diagnostics
- Automatic Transmission Floor Shift Assembly (ATM)
- Automatic Transmission Floor Shift Cable Control Shift (ATM)
- Automatic Transmission Floor Shift Parking Lock Cable Assembly
- Automatic Transmission Removal & Installation
- Automatic Transmission Servicing - A246E
- Automatic Transmission Shift Lock Control Ecu (ATM)
- Automatic Transmission Shift Lock Solenoid (ATM)
- Automatic Transmission Shift Lock System (ATM)
- Automatic Trans
- External Pages
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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