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 MANUALSMAZDA20105 SPORT, 2.3 L, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROL SYSTEMSENGINE CONTROL SYSTEM [L3]THROTTLE POSITION (TP) SENSOR INSPECTIONNOTES
2010 Mazda 5 Sport, 2.3 L, Standard
Throttle Position (TP) Sensor Inspection: Notes
2010 Mazda 5 Sport, 2.3 L, StandardSECTION Notes
CAUTION:
- This inspection procedure cannot be completed correctly if the accelerator pedal position sensor has a malfunction. Before performing this procedure, verify that any one of the DTCs (P2122, P2123, P2127, P2128, P2138) related to the accelerator pedal position sensor is not detected.
- Verify that no DTC related to APP sensor has been detected.
- If any DTCs related to APP sensor have been detected, perform the DTC inspection. (See DTC TABLE .)
- Connect the M-MDS to the DLC-2.
- Turn the ignition switch to ON position.
- Select TP1 or TP2 PID (percentage) on the M-MDS.
- Verify that the TP1 or TP2 PID is within the specification when the accelerator pedal not depressed. (See PCM INSPECTION .)
- Operate the accelerator pedal and verify that the TP1 or TP2 PID (percentage) changes as shown in the following graph in illustration.
- If not verified, perform the "Circuit Open/Short Inspection".
- If there is no open or short circuit, replace the throttle body. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION .)
- If not verified, perform the "Circuit Open/Short Inspection".
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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.