P2126 is a diagnostic trouble code that indicates an issue with the throttle or pedal position sensor or switch “E” circuit, signaling a range or performance problem.
P2126 Throttle/Pedal Position Sensor/Switch “E” Circuit Range/Performance
Code symptoms P2126.
– Rough idling or stalling
– Reduced engine power
– Difficulty accelerating
– Illuminated Check Engine light
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P2126.
1. Defective throttle position sensor (TPS)
2. Faulty pedal position sensor
3. Wiring or connector issues in the throttle or pedal position sensor circuit
4. Throttle body malfunction
5. Engine control module (ECM) failure
Code Solutions P2126.
1. Check the throttle or pedal position sensor for any signs of physical damage or wear, and replace if necessary.
2. Inspect the wiring and connectors related to the throttle or pedal position sensor for any signs of damage or corrosion, and repair or replace as needed.
3. Perform a thorough inspection of the throttle body and clean it if there is any carbon buildup that could be affecting sensor performance.
4. Ensure that the throttle body is properly calibrated and adjusted according to manufacturer specifications.
5. Use a diagnostic tool to reset the error code and monitor the sensor’s performance while driving to see if the issue persists.