AutoCodes – Lincoln – P2131 Lincoln

P2131 Lincoln Code - Throttle/Pedal Position Sensor/Switch 'F' Circuit

Quick Answer

The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position (APP) Sensor harness is open or shorted, Accelerator Pedal Position (APP) Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2131 Lincoln indicates Throttle/Pedal Position Sensor/Switch 'F' Circuit.
Common causes
Common causes include Faulty Accelerator Pedal Position (APP) Sensor, Accelerator Pedal Position (APP) Sensor harness is open or shorted, Accelerator Pedal Position (APP) Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 1,593
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2131 Lincoln Description

The Accelerator Pedal Position (APP) sensor is an input to the Powertrain Control Module (PCM) and used to determine the amount of torque requested by the operator. There are 2 pedal position signals in the sensor. Both signals, APP and APP2, have a positive slope (increasing angle, increasing voltage), but are offset and increase at different rates. The 2 pedal position signals make sure the PCM receives a correct input even if 1 signal has a concern. The PCM determines if a signal is incorrect by calculating where it should be, inferred from the other signals. If a concern is present with one of the circuits the other input is used. There are 2 reference voltage circuits, 2 signal return circuits, and 2 signal circuits (a total of 6 circuits and pins) between the PCM and the APP sensor assembly. The pedal position signal is converted to pedal travel degrees (rotary angle) by the PCM. The software converts these degrees to counts, which is the input to the torque based strategy. The accelerator pedal position (APP) sensor fault flag is set for sensor 3 by the Powertrain Control Module (PCM), indicating the signal is out of the normal self-test operating range.
OBDII Code P2131 Lincoln - Throttle/Pedal Position Sensor/Switch 'F' Circuit - AutoCodes.com
P2131 Lincoln Code - Throttle/Pedal Position Sensor/Switch 'F' Circuit

What are the Possible Causes of the DTC P2131 Lincoln?

  • Faulty Accelerator Pedal Position (APP) Sensor
  • Accelerator Pedal Position (APP) Sensor harness is open or shorted
  • Accelerator Pedal Position (APP) Sensor circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC P2131 Lincoln?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2131 Lincoln code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2131 Lincoln Code

What does OBDII code P2131 mean on a Lincoln?

P2131 indicates an issue with the Throttle/Pedal Position Sensor/Switch 'F' Circuit, which monitors the throttle or pedal position for proper engine operation.

What are the symptoms of code P2131 in a Lincoln?

Common symptoms include reduced engine performance, hesitation during acceleration, poor fuel efficiency, and the Check Engine Light being illuminated.

What causes code P2131 in a Lincoln?

Possible causes include a faulty throttle/pedal position sensor, damaged wiring or connectors in the sensor circuit, or issues with the vehicle's ECM (engine control module).

Can I drive my Lincoln with code P2131?

Driving with code P2131 is not recommended as it can lead to unpredictable throttle behavior and reduced engine performance, potentially posing safety risks.

How do I fix code P2131 on my Lincoln?

Repairs may involve replacing the throttle/pedal position sensor, repairing damaged wiring or connectors, or reprogramming or replacing the ECM if necessary.

How can I test the throttle/pedal position sensor for code P2131?

You can use a multimeter to check the voltage output of the sensor or use an OBDII scanner to monitor live data and compare the sensor readings to manufacturer specifications.

Is P2131 a common issue for Lincoln vehicles?

While not extremely common, this code can occur in Lincoln models that use electronic throttle controls if there are issues with the sensor or its circuit.

Does code P2131 require professional diagnosis?

Professional diagnosis is recommended to accurately identify the root cause, especially if ECM-related issues or complex wiring problems are suspected.

How much does it cost to repair code P2131 in a Lincoln?

The repair cost varies depending on the cause, ranging from $100-$300 for sensor replacement to $500-$1,000 for ECM repairs or reprogramming.

Can a dirty throttle body cause code P2131 on a Lincoln?

While unlikely, a dirty throttle body can sometimes affect sensor readings indirectly. Cleaning the throttle body may help prevent related issues.

Discuss the causes and fixes for P2131 Lincoln OBDII Code

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