2012 Mazda 2 L4-1.5LFACTORY OEM SERVICE PROCEDURE

Accelerator Pedal Position Sensor: Testing and Inspection





ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION [MZR 1.5]

CAUTION:
- The APP sensor cannot be removed as a single unit. When replacing the APP sensor, replace it together with the accelerator pedal as a single unit.

1. Connect the M-MDS to the DLC-2.

2. Switch the ignition to ON.

3. Verify that the APP sensor output voltage (PID: APP1, APP2) increases according to the increase in the accelerator opening angle when the accelerator opening angle is gradually increased.

- If verified, go to the next step.
- If not as verified, replace the accelerator pedal. Service and Repair

4. Verify that the APP sensor output voltage (PID: APP1, APP2) is within the specification when the accelerator pedal is depressed and not depressed.

- If not as specified, replace the accelerator pedal. Service and Repair

Factory Service Tools

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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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