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 33 (ENGINE CONTROLS - SELF-DIAGNOSTICS)
2004 Toyota Matrix XR, FWD, Standard
Section 33 (Engine Controls - Self-Diagnostics)
2004 Toyota Matrix XR, FWD, StandardSECTION Section 33 (Engine Controls - Self-Diagnostics)
WARNING: This page is about a different car, the 2002 Lexus ES 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 P0010 & DTC P0020
- DTC P0011, DTC P0012, DTC P0021 Or DTC P0022
- DTC P0016 & DTC P0018
- DTC P0031, DTC P0032, DTC P0051 & DTC P0052
- DTC P0037, DTC P0038, DTC P0057 & DTC P0058
- DTC P0100: Mass Airflow (MAF) Sensor Circuit Fault
- 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 Position Sensor Circuit Malfunction
- DTC P0121: Throttle Position Sensor Circuit Range/Performance
- DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
- DTC P0128: Thermostat Malfunction
- DTC P0136 & DTC P0156
- DTC P0141 & DTC P0161
- DTC P0171 Or DTC P0172 & DTC P0174 Or DTC P0175
- DTC P0300: Random Misfire Detected
- DTC P0301, DTC P0302, DTC P0303, DTC P0304, DTC P0305 &/Or DTC P0306
- DTC P0325 Or DTC P0330
- DTC P0335: Crankshaft Position Sensor Circuit
- DTC P0340: Variable Valve Timing (VVT) Sensor Circuit
- DTC P0420 & DTC P0430
- DTC P0440 & DTC P0442
- DTC P0441 & DTC P0446
- DTC P0450 Or DTC P0451
- DTC P0500: Vehicle Speed Sensor (VSS) Malfunction
- DTC P0505: Idle Air Control System Circuit
- DTC P1120: Accelerator Pedal Position Sensor Circuit Malfunction
- DTC P1121: Accelerator Pedal Position Sensor Range/Performance Problem
- DTC P1125: Throttle Control Motor Circuit Malfunction
- DTC P1127: Electronic Throttle Control System (ETCS) Actuator Power Source Circuit Malfunction
- DTC P1128: Throttle Control Motor Lock Malfunction
- DTC P1129: Electronic Throttle Control System (ETCS) Malfunction
- DTC P1130 Or DTC P1150
- DTC P1133 Or DTC P1153
- DTC P1135 Or DTC P1155
- DTC P1300, DTC P1305, DTC P1310, DTC P1315, DTC P1320 &/Or DTC P1325
- DTC P1335: Crankshaft Position Sensor Circuit
- DTC P1346 Or DTC P1351
- DTC P1349 Or DTC P1354
- DTC P1350: VVT Sensor/Camshaft Position Sensor Circuit Malfunction (Bank2)
- DTC P1520: Stoplight Switch Signal Circuit
- DTC P1600: ECM Batt Circuit
- DTC P1633: ECM Malfunction
- DTC P1656 Or DTC P1663
- DTC P1780: Park/Neutral Position (PNP) Switch Circuit
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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.