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 MANUALSMAZDA20113 MAZDASPEED, 2.3 3REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 157 (ENGINE CONTROL SYSTEM (AJ))ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTIONNOTES
2011 Mazda 3 Mazdaspeed, 2.3 3
Accelerator Pedal Position (App) Sensor Inspection: Notes
2011 Mazda 3 Mazdaspeed, 2.3 3SECTION Notes
WARNING: This page is about a different car, the 2004 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- Perform the following inspection only when directed.
- Connect the WDS or equivalent to the DLC-2.
- Turn the ignition switch to ON position.
- Select APP1 or APP2 PID (percentage) on the WDS or equivalent.
- Verify that the APP1 or APP2 PID (percentage) changes smoothly while accelerator pedal is gradually depressed.
- If as verified, go to next step.
- If not as verified, perform the "Circuit Open/Short Inspection".
- Verify that the APP1 or APP2 PID (percentage) is as indicated in the table below according to the condition of the accelerator pedal.
- If not verified, perform the "Circuit Open/Short Inspection".
- If there is no open or short circuit, replace the APP sensor. (See ACCELERATOR PEDAL REMOVAL/INSTALLATION .)
- If not verified, perform the "Circuit Open/Short Inspection".
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.