U01B6
Lost Communication With Fuel Heater Control Module
U01B6 is an OBD-II diagnostic trouble code meaning: Lost Communication With Fuel Heater Control Module. Common causes: open or short circuit in the communication circuit, malfunction of the fuel heating module. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Problems starting the engine in cold weather
- Reduced engine performance
- Unstable engine operation in the cold
- Possible errors in related systems
Causes
- Open or short circuit in the communication circuit
- Malfunction of the fuel heating module
- Module power problems
- Poor contact in connectors
- ECU malfunction
How to Fix
- Check the integrity of the wiring harness to the module
- Check the power supply and ground of the module
- Inspect connectors for corrosion
- Test the fuel heating module
- Replace the module if necessary
Related codes
Error U01B6 by Vehicle Brand
FAQ
What does the U01B6 code mean?
U01B6 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Fuel Heater Control Module
What causes a U01B6 error code?
The most common causes of U01B6 include: Open or short circuit in the communication circuit; Malfunction of the fuel heating module; Module power problems; Poor contact in connectors.
How do I fix a U01B6 diagnostic trouble code?
To fix U01B6: Check the integrity of the wiring harness to the module. Check the power supply and ground of the module. Inspect connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U01B6?
Yes, but get it checked soon
How much does it cost to fix U01B6?
The estimated repair cost for U01B6 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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