U0678
Lost Communication With Fuel Level Sensor C
U0678 is an OBD-II diagnostic trouble code meaning: Lost Communication With Fuel Level Sensor C. Common causes: fuel level sensor c malfunction, open or short circuit in wiring. Estimated repair cost: $9–39.
Symptoms
- Inaccurate fuel level readings on the dashboard
- Check Engine light comes on
- Problems with calculating fuel consumption
- Unstable engine operation
Causes
- Fuel level sensor C malfunction
- Open or short circuit in wiring
- Problems with sensor connectors
- ECU malfunction
- Grounding problems
How to Fix
- Check the integrity of the sensor wiring and connectors
- Check the resistance of fuel level sensor C
- Replace the fuel level sensor if necessary
- Check the operation of the computer
Related codes
Error U0678 by Vehicle Brand
FAQ
What does the U0678 code mean?
U0678 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Fuel Level Sensor C
What causes a U0678 error code?
The most common causes of U0678 include: Fuel level sensor C malfunction; Open or short circuit in wiring; Problems with sensor connectors; ECU malfunction.
How do I fix a U0678 diagnostic trouble code?
To fix U0678: Check the integrity of the sensor wiring and connectors. Check the resistance of fuel level sensor C. Replace the fuel level sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0678?
Yes, but get it checked soon
How much does it cost to fix U0678?
The estimated repair cost for U0678 is $9–39. Actual cost depends on your vehicle, location, and labor rates.
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