P1287 Buick Code - Accelerator Pedal Position Sensor 3 Circuit Low Voltage
Quick Answer
The P1287 Buick code indicates a problem with the Accelerator Pedal Position Sensor 3 Circuit, specifically that the voltage is lower than the expected range. Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues in the sensor circuit, Corrosion or damage to the sensor terminals. 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 Buick indicates Accelerator Pedal Position Sensor 3 Circuit Low Voltage.
- Common causes
- Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues in the sensor circuit, Corrosion or damage to the sensor terminals.
- 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 P1287 Buick Description
The P1287 Buick code indicates a problem with the Accelerator Pedal Position Sensor 3 Circuit, specifically that the voltage is lower than the expected range. The accelerator pedal position sensor is a vital component of the vehicle's electronic throttle control system, which controls the engine's throttle opening based on the driver's input through the accelerator pedal. The sensor detects the position of the accelerator pedal and sends this information to the engine control module (ECM), which then adjusts the throttle accordingly.
Common Causes of P1287 Buick
- Faulty accelerator pedal position sensor.
- Wiring or connector issues in the sensor circuit.
- Corrosion or damage to the sensor terminals.
- ECM or software malfunction.
- Electrical issues such as a short circuit or open circuit in the wiring.
Symptoms of P1287 Buick
- Poor acceleration or lack of response when pressing the accelerator pedal.
- Hesitation or jerking during acceleration.
- Engine stalling or rough idling.
- Check Engine Light illuminated on the dashboard.
- Reduced fuel efficiency.
How to Fix P1287 Buick
- Start by diagnosing the issue with a professional scan tool to confirm the P1287 code and pinpoint the exact cause of the low voltage signal.
- Inspect the wiring harness and connectors for any signs of damage, corrosion, or loose connections. Repair or replace as necessary.
- Test the accelerator pedal position sensor using a multimeter to check for proper voltage output. Replace the sensor if it is faulty.
- Clear the diagnostic trouble codes from the ECM and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, further diagnostic testing may be needed to identify any underlying issues with the ECM or other related components.
Cost to Fix P1287 Buick
The cost of repairing the Accelerator Pedal Position Sensor 3 Circuit Low Voltage issue can vary depending on the specific cause of the problem and the labor rates in your area. Generally, replacing the sensor itself can cost between $100 and $200, while labor charges can range from $80 to $150 per hour. Overall, the total repair cost could amount to $200 to $500, including parts and labor. It is advisable to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model.
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