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.
2007 Mazda 6 V6-3.0LFACTORY OEM SERVICE PROCEDURE
Throttle Position Sensor: Testing and Inspection
THROTTLE POSITION (TP) SENSOR INSPECTION[AJ]
NOTE: Perform the following inspection only when directed.
1. 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[AJ].) Diagnostic Trouble Code Descriptions
2. Connect the M-MDS to the DLC-2.
3. Turn the ignition switch to ON position.
4. Select TP1 or TP2 PID (percentage) on the M-MDS.
5. Verify that the TP1 or TP2 PID is within the specification when the accelerator pedal not depressed. (See PCM INSPECTION[AJ].) Using M-MDS
6. Operate the accelerator pedal and verity 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.
Circuit Open/Short Inspection
1. Disconnect the PCM connector.
2. Inspect the following harnesses for open or short circuit. (Continuity check)
Open circuit
- Throttle body terminal C and PCM terminal 2A1
- Throttle body terminal D and PCM terminal 2AR
- Throttle body terminal E and PCM terminal 2AN
- Throttle body terminal F and PCM terminal 2AM
Short circuit
- Throttle body terminal C and power supply
- Throttle body terminal C and body ground
- Throttle body terminal D and power supply
- Throttle body terminal D and body ground
- Throttle body terminal E and power supply
- Throttle body terminal F and power supply
- Throttle body terminal F and body ground
NOTE: Perform the following inspection only when directed.
1. 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[AJ].) Diagnostic Trouble Code Descriptions
2. Connect the M-MDS to the DLC-2.
3. Turn the ignition switch to ON position.
4. Select TP1 or TP2 PID (percentage) on the M-MDS.
5. Verify that the TP1 or TP2 PID is within the specification when the accelerator pedal not depressed. (See PCM INSPECTION[AJ].) Using M-MDS
6. Operate the accelerator pedal and verity 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.
Circuit Open/Short Inspection
1. Disconnect the PCM connector.
2. Inspect the following harnesses for open or short circuit. (Continuity check)
Open circuit
- Throttle body terminal C and PCM terminal 2A1
- Throttle body terminal D and PCM terminal 2AR
- Throttle body terminal E and PCM terminal 2AN
- Throttle body terminal F and PCM terminal 2AM
Short circuit
- Throttle body terminal C and power supply
- Throttle body terminal C and body ground
- Throttle body terminal D and power supply
- Throttle body terminal D and body ground
- Throttle body terminal E and power supply
- Throttle body terminal F and power supply
- Throttle body terminal F and body ground
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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