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.
2009 Toyota Matrix S, AWDFACTORY OEM SERVICE PROCEDURE
Problem Symptoms Table
HINT:
Use the table below to help determine the cause of problem symptom. If multiple suspected areas are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
SFI System
SFI SYSTEM REFERENCE CHART
| Symptom | Suspected Area | Reference |
|---|---|---|
| Engine does not crank (Does not start) | Battery | ON-VEHICLE INSPECTION |
| Starter | INSPECTION | |
| Starter relay | RELAY | |
| Park/neutral position switch | ADJUSTMENT | |
| Clutch pedal switch | REMOVAL | |
| Engine does not crank (Does not start) | ECM power source circuit | ECM POWER SOURCE CIRCUIT |
| Crankshaft position sensor | REMOVAL | |
| Camshaft position sensor | REMOVAL | |
| Ignition system | ON-VEHICLE INSPECTION | |
| Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| Fuel injector circuit | FUEL INJECTOR CIRCUIT | |
| Valve timing | INSTALLATION | |
| VC output circuit | VC OUTPUT CIRCUIT | |
| ECM | REMOVAL | |
| Engine cranks normally but difficult to start | Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT |
| Fuel pump | INSPECTION | |
| Fuel injector circuit | FUEL INJECTOR CIRCUIT | |
| ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| Engine coolant temperature sensor | INSPECTION | |
| Intake system | INTAKE SYSTEM | |
| Ignition system | ON-VEHICLE INSPECTION | |
| Spark plug | ON-VEHICLE INSPECTION | |
| Throttle body | ON-VEHICLE INSPECTION | |
| Compression | ON-VEHICLE INSPECTION | |
| Incomplete intermittent combustion occurs (Does not start) | Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT |
| Fuel pump | INSPECTION | |
| Ignition circuit | SYSTEM DIAGRAM | |
| Ignition system | ON-VEHICLE INSPECTION | |
| Fuel injector circuit | FUEL INJECTOR CIRCUIT | |
| ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| Crankshaft position sensor | REMOVAL | |
| Camshaft position sensor | REMOVAL | |
| Valve timing | INSTALLATION | |
| High engine idle speed | Throttle body | ON-VEHICLE INSPECTION |
| Intake system | INTAKE SYSTEM | |
| A/C signal circuit | HOW TO PROCEED WITH TROUBLESHOOTING | |
| ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| Engine coolant temperature sensor | INSPECTION | |
| PCV valve and hose | REMOVAL | |
| Low engine idle speed (Poor idling) | Throttle body | ON-VEHICLE INSPECTION |
| A/C signal circuit | HOW TO PROCEED WITH TROUBLESHOOTING | |
| Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| Fuel pump | INSPECTION | |
| Intake system | INTAKE SYSTEM | |
| PCV valve and hose | REMOVAL | |
| Rough idling | Compression | ON-VEHICLE INSPECTION |
| Ignition system | ON-VEHICLE INSPECTION | |
| Spark plug | ON-VEHICLE INSPECTION | |
| Fuel injector circuit | FUEL INJECTOR CIRCUIT | |
| ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| Fuel pump | INSPECTION | |
| Throttle body | ON-VEHICLE INSPECTION | |
| Intake system | INTAKE SYSTEM | |
| PCV valve and hose | REMOVAL | |
| Air fuel ratio sensor | REMOVAL | |
| Heated oxygen sensor | INSPECTION | |
| Mass air flow meter | MASS AIR FLOW METER | |
| Idle hunting | Throttle body | ON-VEHICLE INSPECTION |
| Intake system | INTAKE SYSTEM | |
| PCV valve and hose | REMOVAL | |
| Air fuel ratio sensor | REMOVAL | |
| Mass air flow meter | MASS AIR FLOW METER | |
| Hesitation/Poor acceleration | Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT |
| Fuel pump | INSPECTION | |
| Spark plug | ON-VEHICLE INSPECTION | |
| Ignition system | ON-VEHICLE INSPECTION | |
| Fuel injector circuit | FUEL INJECTOR CIRCUIT | |
| ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| Mass air flow meter | MASS AIR FLOW METER | |
| Throttle body | ON-VEHICLE INSPECTION | |
| Intake system | INTAKE SYSTEM | |
| Valve timing | INSTALLATION | |
| Compression | ON-VEHICLE INSPECTION | |
| Surging (Poor driveability) | Spark plug | ON-VEHICLE INSPECTION |
| Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT | |
| Fuel pump | INSPECTION | |
| Ignition system | ON-VEHICLE INSPECTION | |
| Fuel injector circuit | FUEL INJECTOR CIRCUIT | |
| ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| Mass air flow meter | MASS AIR FLOW METER | |
| Variable valve timing (VVT) system | DTC P0010 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1) | |
| Compression | ON-VEHICLE INSPECTION | |
| Engine stalls soon after starting | Fuel pump control circuit | FUEL PUMP CONTROL CIRCUIT |
| Fuel pump | INSPECTION | |
| Spark plug | ON-VEHICLE INSPECTION | |
| Ignition system | ON-VEHICLE INSPECTION | |
| Fuel injector circuit | FUEL INJECTOR CIRCUIT | |
| ECM power source circuit | ECM POWER SOURCE CIRCUIT | |
| Mass air flow meter | MASS AIR FLOW METER | |
| Variable valve timing (VVT) system | DTC P0010 CAMSHAFT POSITION "A" ACTUATOR CIRCUIT (BANK 1) | |
| Throttle body | ON-VEHICLE INSPECTION | |
| Intake system | INTAKE SYSTEM | |
| PCV valve and hose | REMOVAL | |
| Compression | ON-VEHICLE INSPECTION | |
| Engine stalls only during A/C operation | A/C signal circuit | HOW TO PROCEED WITH TROUBLESHOOTING |
| ECM | ECM | |
| Unable/difficult to refuel | Refueling valve (canister) for 2WD | INSPECTION |
| Refueling valve (canister) for 4WD | REMOVAL |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.