P2140 Fault Code

Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation

• What does that mean?
• Symptoms
• Causes
• Solutions

The P2140 fault code indicates a malfunction related to the Throttle/Pedal Position Sensor/Switch E/F. This code typically arises when there’s an inconsistency or correlation issue between the voltage readings from the throttle position sensors. These sensors are crucial as they relay the position of the accelerator pedal to the engine control unit, which ultimately determines engine power output and performance.

What are the symptoms of the P2140 code?

Symptoms associated with the P2140 fault code may involve:

• Warning lights on the dashboard, particularly the Check Engine light
• Reduced engine performance or power loss
• Erratic acceleration or delayed throttle response
• Engine stalling or difficulty starting
• Unusual engine behavior when accelerating

What causes the P2140 code?

Common causes for the P2140 code include:

• Faulty throttle position sensor or switch
• Wiring issues such as shorts or open circuits
• Poor electrical connections or corrosion
• ECM (Engine Control Module) faults affecting sensor readings
• Issues with the accelerator pedal position sensor

How to fix P2140?

To resolve the P2140 code, consider the following steps:

• Inspect and repair any damaged wiring or connectors associated with the throttle position sensor
• Test the throttle position sensor for proper operation and replace if necessary
• Check the accelerator pedal position sensor and replace if it's malfunctioning
• Clear the fault code using an OBD-II scanner and test drive the vehicle to verify that the issue is resolved
• If problems persist, further diagnosis of the ECM may be required