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 102 (ENGINE CONTROLS - THEORY & OPERATION)COMPUTERIZED ENGINE CONTROLSINPUT DEVICESACCELERATOR PEDAL POSITION SENSOR (ES300, GS300, GS430, GX470, IS300, LS430, LX470 & SC430)
2004 Toyota Matrix XR, FWD, Standard
Accelerator Pedal Position Sensor (ES300, GS300, GS430, GX470, IS300, LS430, LX470 & SC430)
2004 Toyota Matrix XR, FWD, StandardSECTION Accelerator Pedal Position Sensor (ES300, GS300, GS430, GX470, IS300, LS430, LX470 & SC430)
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Lexus SC 430, 2003 Lexus RX 300, 2003 Lexus LX 470, 2003 Lexus LS 430, and 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
Accelerator pedal position sensor is used with ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) for control of throttle operation. See ELECTRONIC THROTTLE CONTROL SYSTEM (ETCS) under AIR INDUCTION SYSTEM for additional information.
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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.