Engine-CodesChevrolet – P1287 Chevrolet

P1287 Chevrolet Code - Accelerator Pedal Position Sensor 3 Circuit Low Voltage

Quick Answer

The P1287 Chevrolet code indicates an issue with the Accelerator Pedal Position Sensor 3 Circuit, specifically a low voltage condition. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or moisture in the sensor connections. 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
P1287 Chevrolet indicates Accelerator Pedal Position Sensor 3 Circuit Low Voltage.
Common causes
Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or moisture in the sensor connections.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1287 Chevrolet Description

The P1287 Chevrolet code indicates an issue with the Accelerator Pedal Position Sensor 3 Circuit, specifically a low voltage condition. The accelerator pedal position sensor is a crucial component of the electronic throttle control system in modern vehicles. It is responsible for sending signals to the engine control module (ECM) regarding the position of the accelerator pedal, which in turn determines the amount of fuel and air to be delivered to the engine for optimal performance.

OBDII Code P1287 Chevrolet - Accelerator Pedal Position Sensor 3 Circuit Low Voltage
P1287 Chevrolet Code - Accelerator Pedal Position Sensor 3 Circuit Low Voltage

Common Causes of P1287 Chevrolet

  1. Faulty accelerator pedal position sensor
  2. Damaged wiring or connectors in the sensor circuit
  3. Corrosion or moisture in the sensor connections
  4. Issues with the ECM programming or communication

Symptoms of P1287 Chevrolet

  1. Lack of response when pressing the accelerator pedal
  2. Engine hesitation or surging
  3. Rough idling or unstable engine RPM
  4. Illumination of the Check Engine Light
  5. Reduced fuel efficiency

How to Fix P1287 Chevrolet

  1. Perform a thorough diagnosis using a diagnostic scanner to confirm the P1287 code and identify the specific cause of the low voltage condition.
  2. Inspect the accelerator pedal position sensor, wiring, and connectors for any visible damage or corrosion.
  3. Test the sensor's voltage output using a multimeter to determine if it is functioning within the manufacturer's specified range.
  4. Replace the accelerator pedal position sensor if it is found to be faulty, ensuring proper installation and calibration.
  5. Clear the fault code from the ECM memory and conduct a test drive to verify that the issue has been resolved.

Cost to Fix P1287 Chevrolet

The typical repair costs for addressing a P1287 Chevrolet code can range from $150 to $350, depending on the specific cause of the issue and the cost of parts and labor. It's essential to factor in the diagnosis time and labor rates at auto repair shops, which can vary based on location, vehicle make and model, and engine type. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops often charge less. For a more accurate estimate, it is advisable to consult local auto repair professionals.

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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.

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