Engine-Codes.com
Engine-Codes – GMC – P1200 GMC

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

Quick Answer

The P1200 GMC code indicates that there is an issue with the Fuel Level Sensor 1 Signal Message Counter being incorrect. Common causes include Faulty fuel level sensor, Wiring or connection issues, Malfunctioning 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 GMC indicates Fuel Level Sensor 1 Signal Message Counter Incorrect.
Common causes
Common causes include Faulty fuel level sensor, Wiring or connection issues, Malfunctioning 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P1200 GMC Description

The P1200 GMC code indicates that there is an issue with the Fuel Level Sensor 1 Signal Message Counter being incorrect. In modern vehicles, the fuel level sensor plays a crucial role in monitoring the amount of fuel in the tank and sending this information to the vehicle's computer system. This data is then used to calculate fuel consumption, optimize engine performance, and display the fuel level on the dashboard for the driver.

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

Common Causes of P1200 GMC

  1. Faulty fuel level sensor
  2. Wiring or connection issues
  3. Malfunctioning fuel pump
  4. Computer system error
  5. Corrosion or damage to sensor components

Symptoms of P1200 GMC

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

How to Fix P1200 GMC

  1. Diagnose the issue with a professional scan tool to pinpoint the exact cause of the incorrect signal message counter.
  2. Inspect the fuel level sensor, wiring, and connections for any signs of damage or corrosion.
  3. Test the fuel pump to ensure it is functioning correctly.
  4. Replace the faulty fuel level sensor if necessary.
  5. Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.

Cost to Fix P1200 GMC

The typical repair costs for addressing a P1200 GMC code related to the fuel level sensor can range from $150 to $500, depending on the exact cause of the issue and the cost of replacement parts. Additional costs may apply for diagnostic testing and labor. It's important to consult with a certified mechanic or auto repair shop to get an accurate estimate based on the specific make and model of the vehicle. Labor rates can vary, so it's advisable to inquire about pricing before proceeding with the repair.

Need more information about the P1200 GMC code?

Need more information on how to fix the P1200 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1200 GMC code diagnosed by a professional: Find a repair shop in your area

Information for Specific GMC Models

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 P1200 GMC Code

No Frequently Asked Questions about P1200 GMC Code found.

Discuss the causes and fixes for P1200 GMC OBDII Code

Submit a New Comment

Code P1200 GMC comments

No comments found for this page.