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U0677: Lost Communication With Fuel Level Sensor B

What Does U0677 Mean?

U0677 is a diagnostic trouble code indicating: Lost Communication With Fuel Level Sensor B. This code relates to the vehicle systems system. The vehicle's computer detected a condition outside normal operating parameters and stored this code.

What To Do Next

  1. 1
    Find your vehicle above

    Click your make and model for real owner reports and common causes specific to your vehicle.

  2. 2
    Check for recalls

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.

  3. 3
    Get a professional diagnosis

    A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

Related Codes

U0672 Lost Communication With Engine Coolant Pump U0673 Lost Communication With Ion Sense Module U0674 Lost Communication With Wastegate Position Sensor B U0675 Lost Communication With Turbocharger/Supercharger Speed Sensor A U0676 Lost Communication With Fuel Level Sensor A U0678 Lost Communication With Fuel Level Sensor C U0679 Lost Communication With Transmission Fluid Pressure Sensor/Switch A U0680 Lost Communication With Barometric Pressure Sensor B