Engine-CodesBuick – P1273 Buick

P1273 Buick Code - Accelerator Pedal Position Sensor 1-3 Correlation

Quick Answer

The P1273 Buick code indicates a problem with the correlation between the accelerator pedal position sensor 1 and sensor 3. Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues, Malfunctioning engine control module (ECM). 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
P1273 Buick indicates Accelerator Pedal Position Sensor 1-3 Correlation.
Common causes
Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues, Malfunctioning engine control module (ECM).
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 P1273 Buick Description

The P1273 Buick code indicates a problem with the correlation between the accelerator pedal position sensor 1 and sensor 3. The accelerator pedal position sensor is a vital component of the vehicle's electronic throttle control system. It is responsible for monitoring the position of the accelerator pedal and sending this information to the engine control module (ECM) to adjust the throttle accordingly. When the correlation between sensor 1 and sensor 3 is off, it can lead to issues with the vehicle's performance, fuel efficiency, and overall drivability.

OBDII Code P1273 Buick - Accelerator Pedal Position Sensor 1-3 Correlation
P1273 Buick Code - Accelerator Pedal Position Sensor 1-3 Correlation

Common Causes of P1273 Buick

  1. Faulty accelerator pedal position sensor
  2. Wiring or connector issues
  3. Malfunctioning engine control module (ECM)
  4. Environmental factors such as moisture or corrosion
  5. Electrical problems in the throttle control system

Symptoms of P1273 Buick

  1. Hesitation or lack of response when pressing the accelerator pedal
  2. Stalling or rough idling
  3. Reduced fuel efficiency
  4. Check engine light illuminated on the dashboard
  5. Loss of power while driving

How to Fix P1273 Buick

  1. Diagnose the issue by using a diagnostic scanner to retrieve the trouble code and perform a thorough inspection of the accelerator pedal position sensor and related components.
  2. Check the wiring and connectors for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the accelerator pedal position sensor using a multimeter to ensure it is functioning correctly. Replace if faulty.
  4. Clear the trouble code from the ECM's memory and perform a test drive to verify that the issue has been resolved.
  5. If the problem persists, further diagnostic testing may be required to pinpoint the exact cause of the correlation issue.

Cost to Fix P1273 Buick

The cost of repairing a P1273 Buick code can vary depending on the specific cause of the issue. On average, the cost of replacing an accelerator pedal position sensor ranges from $100 to $200, including parts and labor. However, if additional components need to be replaced or if extensive diagnostic testing is required, the total repair cost could be higher. It's important to factor in the diagnostic time and labor rates at auto repair shops, which can vary based on location and other factors. It's recommended to consult with a professional mechanic to get an accurate estimate for the repair.

When is the Code Detected?

The Engine Control Module (ECM) compared the signal from both Accelerator Pedal Position (APP) sensors and detected a voltage difference.

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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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