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, 4WDFACTORY OEM SERVICE PROCEDURE
Engine Performance DTCS
ENGINE PERFORMANCE DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| P0100 | Mass Air Flow Circuit Malfunction |
| P0101 | Mass Air Flow Circuit Range/Performance Problem |
| P0110 | Intake Air Temperature Circuit Malfunction |
| P0115 | Engine Coolant Temperature Circuit Malfunction |
| P0116 | Engine Coolant Temperature Circuit Range/Performance Problem |
| P0120 | Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction |
| P0121 | Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem |
| P0125 | Insufficient Coolant Temperature For Closed Loop Fuel Control |
| P0128 | Thermostat Malfunction (Corolla Model) |
| P0128 | Thermostat Malfunction (Matrix Model) |
| P0130 | Heated Oxygen Sensor Circuit Malfunction (Bank No. 1 Sensor No. 1) |
| P0133 | Heated Oxygen Sensor Slow Response (Bank No. 1 Sensor No. 1) |
| P0135 | Heated Oxygen Sensor Heater Circuit Malfunction (Bank No. 1 Sensor No. 1) |
| P0136 | Heated Oxygen Sensor Circuit Malfunction (Bank No. 1 Sensor No. 2) |
| P0141 | Heated Oxygen Sensor Heater Circuit Malfunction (Bank No. 1 Sensor No. 2) |
| P0171 | System Too Lean (Fuel Trim Bank No. 1) |
| P0172 | System Too Rich (Fuel Trim Bank No. 1) |
| P0300 | Random/Multiple Cylinder Misfire Detected |
| P0301 | Cylinder No. 1 Misfire Detected |
| P0302 | Cylinder No. 2 Misfire Detected |
| P0303 | Cylinder No. 3 Misfire Detected |
| P0304 | Cylinder No. 4 Misfire Detected |
| P0325 | Knock Sensor No. 1 Circuit Malfunction (Bank No. 1) |
| P0335 | Crankshaft Position "A" Sensor Circuit Malfunction |
| P0340 | Camshaft Position Sensor Circuit Malfunction |
| P0420 | Catalyst System Efficiency Below Threshold (Bank No. 1) |
| P0440 | EVAP System Malfunction |
| P0441 | EVAP System Incorrect Purge Flow |
| P0442 | EVAP System Malfunction |
| P0446 | EVAP System Malfunction |
| P0450 | EVAP System Pressure Sensor Malfunction |
| P0451 | EVAP System Pressure Sensor Range/Performance |
| P0500 | Vehicle Speed Sensor Malfunction |
| P0505 | Idle Control System Malfunction |
| P1300 | Igniter Circuit Malfunction (No. 1) |
| P1305 | Igniter Circuit Malfunction (No. 2) |
| P1310 | Igniter Circuit Malfunction (No. 3) |
| P1315 | Igniter Circuit Malfunction (No. 4) |
| P1335 | Crankshaft Position Sensor Circuit Malfunction (During Engine Running) |
| P1346 | Variable Valve Timing Sensor/Camshaft Position Sensor Circuit Range/Performance Problem (Bank No. 1) |
| P1349 | Variable Valve Timing System Malfunction (Bank No. 1) |
| P1520 | Stop Light Switch Circuit Malfunction (A/T Only) |
| P1600 | Back-Up Power Source Circuit Malfunction |
| P1656 | Oil Control Valve Circuit Malfunction (Bank No. 1) |
| P1690 | OCV For VVTL Circuit Malfunction (Matrix 2ZZ-GE Engine Model Only) |
| P1692 | OCV For VVTL Open Malfunction / Bank No. 1 (Matrix 2ZZ-GE Engine Model Only) |
| P1693 | OCV For VVTL Close Malfunction / Bank No. 1 (Matrix 2ZZ-GE Engine Model Only) |
| P1780 | Park/Neutral Position Switch Malfunction (A/T Only) |
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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