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.
2004 Mazda 3 i, AutomaticFACTORY OEM SERVICE PROCEDURE
Accelerator Pedal Position (App) Sensor Inspection: Notes
NOTE:
- Before performing the following inspection, make sure to follow the troubleshooting flowchart. (See FOREWORD .)
- Connect the WDS or equivalent to the DLC-2.
- Turn the ignition switch to ON position.
- Select APP1 and APP2 PID on the WDS or equivalent.
- Verify that the APP1 and APP2 PID is within the specification when the accelerator pedal not depressed. (See PCM INSPECTION .)
Factory Service Tools
Use the Manual With the Right Hardware
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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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