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.
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HOMESERVICE MANUALSTOYOTA2004MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 34 (ENGINE CONTROLS - SELF-DIAGNOSTICS)
2004 Toyota Matrix XR, FWD, Standard
Section 34 (Engine Controls - Self-Diagnostics)
2004 Toyota Matrix XR, FWD, StandardSECTION Section 34 (Engine Controls - Self-Diagnostics)
WARNING: This page is about a different car, the 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Scan Tool Problems
- Summary
- Diagnostic Tests
- Notes
- DTC P0100: Mass Airflow (MAF) Sensor Circuit
- DTC P0101: Mass Airflow (MAF) Sensor Circuit Range/Performance Fault
- DTC P0110: Intake Air Temperature (IAT) Sensor Circuit
- DTC P0115: Engine Coolant Temperature (ECT) Sensor Circuit
- DTC P0116: Engine Coolant Temperature (ECT) Sensor Circuit Range/Performance Fault
- DTC P0120: Throttle (TP)/Pedal Position Sensor Switch "A" Circuit Malfunction
- DTC P0121: Throttle (TP)/Pedal Position Sensor Switch "A" Circuit Range/Performance Fault
- DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
- DTC P0128: Thermostat Fault
- DTC P0136: Heated Oxygen Sensor Circuit Fault
- DTC P0141: Heated Oxygen Sensor Heater Circuit Fault
- DTC P0171, DTC P0172, DTC P0174, DTC P0175
- DTC P0300: Random Cylinder Misfire Detected
- DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305 & DTC P0306
- DTC P0325 Or DTC P0330: Knock Sensor Circuit Fault
- DTC P0335 Or DTC P1335: Crankshaft Position (CKP) Sensor Circuit
- DTC P0340: Variable Valve Timing (VVT) Sensor Circuit
- DTC P0420: Catalyst System Efficiency Below Threshold
- DTC P0440 Or DTC P0442
- DTC P0441 Or DTC P0446
- DTC P0450 Or DTC P0451
- DTC P0500: Vehicle Speed Sensor (VSS) Malfunction
- DTC P0505: Idle Control System Malfunction
- DTC P1130 Or P1150: Air/Fuel Sensor Circuit Range/Performance Fault
- DTC P1133 Or P1153: Air/Fuel Sensor Circuit Response Malfunction
- DTC P1135 Or P1155: Air/Fuel Sensor Heater Circuit Malfunction
- DTC P1300, DTC P1305, DTC P1310, DTC P1315, DTC P1320 Or DTC P1325
- DTC P1335: Crankshaft Position Sensor Circuit Malfunction (During Engine Running)
- DTC P1345 Or DTC P1350: Variable Valve Timing (VVT) Circuit Malfunction
- DTC P1346 Or DTC P1351: Variable Valve Timing (VVT) Circuit Range/Performance Fault
- DTC P1349 Or DTC P1354: Variable Valve Timing (VVT) System Malfunction
- DTC P1520: Stoplight Switch Signal Malfunction
- DTC P1600: ECM Batt Malfunction
- DTC P1656 Or DTC P1663: Oil Control Valve (OCV) Malfunction
- DTC P1780: Park/Neutral Position Switch Malfunction
RENDER: 1.0x
NO RELATED
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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.