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))THROTTLE POSITION (TP) SENSOR INSPECTIONNOTES

2011 Mazda 3 Mazdaspeed, 2.3 3

Throttle Position (TP) 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.

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 WDS or equivalent to the DLC-2.

Fig 1: Locating DLC-2 Connector
Courtesy of MAZDA MOTORS CORP.
Turn the ignition switch to ON position.
Select TP1 or TP2 PID (percentage) on the WDS or equivalent.
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.
- 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 .)

Fig 2: TP Sensor PID Vs. Throttle Opening Angle Graph

Courtesy of MAZDA MOTORS CORP.

RENDER: 1.0x

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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.