The control module stopped receiving expected network messages from the Engine Coolant Flow Control Valve Position Sensor node on the vehicle communication bus.
TuningBot DTC Database · v4.37.14
U063F Lost Communication With Engine Coolant Flow Control Valve Position Sensor
Generic (OBD-II) interpretation in the TuningBot DTC database.
What U063F means
Related and nearby codes
How to read U063F
Network: communication between control units.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about U063F
What does U063F mean?
Lost Communication With Engine Coolant Flow Control Valve Position Sensor. The control module stopped receiving expected network messages from the Engine Coolant Flow Control Valve Position Sensor node on the vehicle communication bus.
Is U063F generic or manufacturer-specific?
U063F is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove U063F at file level?
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U063F is removable in your case.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
