P2115: Throttle/Pedal Position Sensor "D" Minimum Stop Performance

Definition

The OBD2 code P2115 indicates that the throttle or pedal position sensor "D" is not functioning correctly, specifically that it is not reaching the minimum stop position as expected, which can affect engine performance and throttle response

Common causes

Faulty throttle position sensor (TPS)
Faulty accelerator pedal position sensor
Wiring issues or damaged connectors
Throttle body malfunction
Software issues or calibration problems
Vacuum leaks
Faulty engine control module (ECM)

Common misdiagnoses

Faulty throttle body
Bad accelerator pedal position sensor
Wiring issues or poor connections
Engine control module (ECM) problems
Vacuum leaks
Faulty mass air flow sensor
Fuel delivery issues
Ignition system problems

Troubleshooting steps

1. Check for Additional Codes

Use an OBD-II scanner to check for any other trouble codes that may be present. Addressing related codes can help pinpoint the issue
2. Inspect Throttle Body
3. Check the throttle body for any signs of carbon buildup or physical damage. Clean the throttle body if necessary
4. Ensure that the throttle plate moves freely and is not sticking
5. Examine Throttle Position Sensor (TPS)
6. Inspect the throttle position sensor and its wiring for any signs of damage, corrosion, or loose connections
7. Test the TPS using a multimeter to ensure it is functioning within the manufacturer's specifications
8. Check Pedal Position Sensor
9. Inspect the accelerator pedal position sensor and its wiring for damage or poor connections
10. Test the pedal position sensor to ensure it is providing the correct voltage and signal to the engine control module (ECM)
11. Inspect Wiring and Connectors
12. Check all related wiring and connectors for signs of wear, corrosion, or damage. Repair or replace any faulty components as needed
13. Verify Throttle Control System
14. Ensure that the electronic throttle control system is functioning properly. This may involve checking the ECM for software updates or recalibrating the throttle body
15. Check for Vacuum Leaks
16. Inspect the intake system for any vacuum leaks that could affect throttle performance. Repair any leaks found
17. Perform a Throttle Relearn Procedure
18. Some vehicles require a throttle relearn procedure after repairs or battery disconnection. Consult the vehicle’s service manual for the specific procedure
19. Test the ECM
20. If all other components check out, the issue may lie with the engine control module itself. Testing or replacing the ECM may be necessary
21. Consult Technical Service Bulletins (TSBs)
22. Check for any TSBs related to the P2115 code for your specific vehicle make and model. Manufacturers may have issued guidance or fixes for known issues. 1
23. Professional Diagnosis
24. If the problem persists after performing the above steps, consider seeking help from a professional mechanic or dealership for a more in-depth diagnosis. Always remember to follow safety precautions and consult the vehicle’s service manual for specific procedures and specifications

Definition

Common causes

Common misdiagnoses

Troubleshooting steps

1. Check for Additional Codes

2. Inspect Throttle Body

3. Check the throttle body for any signs of carbon buildup or physical damage. Clean the throttle body if necessary

4. Ensure that the throttle plate moves freely and is not sticking

5. Examine Throttle Position Sensor (TPS)

6. Inspect the throttle position sensor and its wiring for any signs of damage, corrosion, or loose connections

7. Test the TPS using a multimeter to ensure it is functioning within the manufacturer's specifications

8. Check Pedal Position Sensor

9. Inspect the accelerator pedal position sensor and its wiring for damage or poor connections

10. Test the pedal position sensor to ensure it is providing the correct voltage and signal to the engine control module (ECM)

11. Inspect Wiring and Connectors

12. Check all related wiring and connectors for signs of wear, corrosion, or damage. Repair or replace any faulty components as needed

13. Verify Throttle Control System

14. Ensure that the electronic throttle control system is functioning properly. This may involve checking the ECM for software updates or recalibrating the throttle body

15. Check for Vacuum Leaks

16. Inspect the intake system for any vacuum leaks that could affect throttle performance. Repair any leaks found

17. Perform a Throttle Relearn Procedure

18. Some vehicles require a throttle relearn procedure after repairs or battery disconnection. Consult the vehicle’s service manual for the specific procedure

19. Test the ECM

20. If all other components check out, the issue may lie with the engine control module itself. Testing or replacing the ECM may be necessary

21. Consult Technical Service Bulletins (TSBs)

22. Check for any TSBs related to the P2115 code for your specific vehicle make and model. Manufacturers may have issued guidance or fixes for known issues. 1

23. Professional Diagnosis

24. If the problem persists after performing the above steps, consider seeking help from a professional mechanic or dealership for a more in-depth diagnosis. Always remember to follow safety precautions and consult the vehicle’s service manual for specific procedures and specifications