U063F
Lost Communication With Engine Coolant Flow Control Valve Position Sensor
U063F is an OBD-II diagnostic trouble code meaning: Lost Communication With Engine Coolant Flow Control Valve Position Sensor. Common causes: valve position sensor malfunction, open or short circuit in the circuit. Estimated repair cost: $17–56.
Symptoms
- Check Engine Light Is On
- Unstable engine operation
- Increased engine temperature
- Reduced cooling system efficiency
- Possible misfires
Causes
- Valve position sensor malfunction
- Open or short circuit in the circuit
- Wiring harness damage
- Corrosion or oxidation of contacts
- Engine ECU malfunction
How to Fix
- Check the integrity of the electrical circuit
- Inspect and clean connector contacts
- Test valve position sensor
- Replace the faulty sensor if necessary
- Check and replace wiring harness if necessary
Related codes
Error U063F by Vehicle Brand
FAQ
What does the U063F code mean?
U063F is an OBD-II diagnostic trouble code that indicates: Lost Communication With Engine Coolant Flow Control Valve Position Sensor
What causes a U063F error code?
The most common causes of U063F include: Valve position sensor malfunction; Open or short circuit in the circuit; Wiring harness damage; Corrosion or oxidation of contacts.
How do I fix a U063F diagnostic trouble code?
To fix U063F: Check the integrity of the electrical circuit. Inspect and clean connector contacts. Test valve position sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U063F?
Limited driving only, diagnose soon
How much does it cost to fix U063F?
The estimated repair cost for U063F is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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