Engine-CodesBuick – P1200 Buick

P1200 Buick Code - Fuel Level Sensor 1 Signal Message Counter Incorrect

Quick Answer

The P1200 Buick code indicates that there is a problem with the Fuel Level Sensor 1 Signal Message Counter being incorrect. Common causes include Faulty fuel level sensor, Wiring issues or corrosion, Damaged fuel pump. 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
P1200 Buick indicates Fuel Level Sensor 1 Signal Message Counter Incorrect.
Common causes
Common causes include Faulty fuel level sensor, Wiring issues or corrosion, Damaged fuel pump.
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 09, 2024
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Code P1200 Buick Description

The P1200 Buick code indicates that there is a problem with the Fuel Level Sensor 1 Signal Message Counter being incorrect. This sensor is responsible for measuring the level of fuel in the tank and sending this information to the vehicle's computer system. When the signal message counter is incorrect, it means that the data being sent by the sensor is not matching the expected values, leading to potential issues with fuel level monitoring and accuracy.

OBDII Code P1200 Buick - Fuel Level Sensor 1 Signal Message Counter Incorrect
P1200 Buick Code - Fuel Level Sensor 1 Signal Message Counter Incorrect

Common Causes of P1200 Buick

  1. Faulty fuel level sensor
  2. Wiring issues or corrosion
  3. Damaged fuel pump
  4. ECM malfunction
  5. Poor quality fuel

Symptoms of P1200 Buick

  1. Inaccurate fuel level readings on the dashboard
  2. Fluctuating fuel gauge readings
  3. Engine stalling or hesitation
  4. Check engine light illuminated
  5. Poor fuel efficiency

How to Fix P1200 Buick

  1. Diagnose the issue by using a scan tool to retrieve the trouble codes and inspecting the fuel level sensor and related components.
  2. Replace the faulty fuel level sensor if it is determined to be the cause of the problem.
  3. Inspect and repair any damaged wiring or connectors.
  4. Test the fuel pump to ensure it is functioning properly.
  5. Clear the trouble codes and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1200 Buick

The typical repair costs for addressing a P1200 Buick code related to the Fuel Level Sensor 1 Signal Message Counter Incorrect can vary depending on the specific cause of the issue. In general, the cost of replacing a faulty fuel level sensor can range from $150 to $300, including parts and labor. Additional costs may be incurred if wiring repairs or fuel pump replacement are necessary.

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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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