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 L4-2.3LFACTORY OEM SERVICE PROCEDURE
Throttle Position Sensor: Testing and Inspection
THROTTLE POSITION (TP) SENSOR INSPECTION[L3]
NOTE: Perform the following inspection only when directed.
Voltage Inspection
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[L3].) Diagnostic Trouble Code Descriptions
2. Start the engine and warm it up (ECT: more than 80 °C {176 °F}.
3. Turn the ignition switch to ON position (Engine OFF).
4. Verify that the PCM terminal 2AK and 2AL change smoothly while throttle valve is gradually opened.
- If as verified, go to next step.
- If not as verified, perform the "Circuit Open/Short Inspection".
- If there is no open or short circuit. replace the throttle body.
5. Verify that the PCM terminal 2AK and 2AL voltages are as shown in the table.
- If voltage is not as following table, 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 wiring harnesses for open or short circuit. (Continuity inspection)
Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- Throttle body terminal A and PCM terminal 2Ak
- Throttle body terminal B and PCM terminal 2A0
- Throttle body terminal C and PCM terminal 2AL
- Throttle body terminal D and PCM terminal 2AP
Short circuit
- If there is continuity, there is a short circuit. Repair or replace the wiring harness.
- Throttle body terminal A and power supply
- Throttle body terminal A and body GND
- Throttle body terminal B and power supply
- Throttle body terminal B and body GND
- Throttle body terminal C and power supply
- Throttle body terminal C and body GND
- Throttle body terminal D and power supply
NOTE: Perform the following inspection only when directed.
Voltage Inspection
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[L3].) Diagnostic Trouble Code Descriptions
2. Start the engine and warm it up (ECT: more than 80 °C {176 °F}.
3. Turn the ignition switch to ON position (Engine OFF).
4. Verify that the PCM terminal 2AK and 2AL change smoothly while throttle valve is gradually opened.
- If as verified, go to next step.
- If not as verified, perform the "Circuit Open/Short Inspection".
- If there is no open or short circuit. replace the throttle body.
TP Sensor Output Voltage:
5. Verify that the PCM terminal 2AK and 2AL voltages are as shown in the table.
- If voltage is not as following table, 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 wiring harnesses for open or short circuit. (Continuity inspection)
Open circuit
- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
- Throttle body terminal A and PCM terminal 2Ak
- Throttle body terminal B and PCM terminal 2A0
- Throttle body terminal C and PCM terminal 2AL
- Throttle body terminal D and PCM terminal 2AP
Short circuit
- If there is continuity, there is a short circuit. Repair or replace the wiring harness.
- Throttle body terminal A and power supply
- Throttle body terminal A and body GND
- Throttle body terminal B and power supply
- Throttle body terminal B and body GND
- Throttle body terminal C and power supply
- Throttle body terminal C and body GND
- Throttle body terminal D and power supply
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.