U0677

Lost Communication With Fuel Level Sensor B

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–67 (est.)

Symptoms

Incorrect fuel level readings on the dashboard
Fuel indicator flashes or does not work
Error message on display
Problems with calculating fuel consumption
Inability to determine the exact volume of fuel in the tank

Causes

Open or short circuit in the sensor circuit
Fuel level sensor B malfunction
Poor contact in the sensor connector
Corroded contacts or damaged wiring
Problems with the ECU

How to Fix

Check the integrity of the wiring to the fuel level sensor
Inspect and clean the sensor connector contacts
Check the resistance of the fuel level sensor
If necessary, replace the fuel level sensor
Carry out ECU diagnostics if the error persists

Related codes

U0676 U0678 U0155