Throttle/Pedal Position Sensor Minimum Stop Performance
The P2115 code indicates that the Engine Control Module (ECM) has detected a malfunction in the throttle or pedal position sensor's ability to recognize the idle or minimum stop position. This typically means the sensor signal is out of expected range when the throttle is closed, often due to mechanical binding, electrical issues, or sensor calibration problems. The ECM uses this sensor to determine driver demand and control throttle opening, so any discrepancy can affect engine performance and safety systems like traction control.
01. Most Common Causes
- Faulty throttle position sensor (TPS) or accelerator pedal position sensor (APP)
- Carbon buildup on throttle body causing sticking or improper closure
- Wiring or connector issues (corrosion, loose connections, shorts)
- Failed ECM or software calibration error
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power or limp mode
- Poor acceleration or hesitation
- Rough idle or stalling
03. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm P2115 and check for other codes.
Step 2: Visually inspect throttle body for carbon buildup and clean if necessary.
Step 3: Test TPS/APP sensor voltage and resistance with a multimeter per manufacturer specs.
Step 4: Check wiring and connectors for damage, corrosion, or loose pins.
Step 5: If all else fails, perform ECM software update or replace sensor/ECM.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. The vehicle may enter limp mode, reducing power and potentially causing unsafe driving conditions. Have it diagnosed promptly.
How much does it cost to fix?▼
Typically $50-$150 for cleaning or sensor replacement, but could be higher if ECM replacement is needed.