Communication bus A is not active.
Have this diagnosed before driving further
Informational only. Consult a qualified mechanic.
Have the communication bus diagnosed and repaired.
The U0073 OBD-II diagnostic trouble code (DTC) indicates: control module communication bus a off. This is a high-severity network code that your vehicle's onboard diagnostics system triggers when communication bus a is not active. If your check engine light is on with this code, you should have the vehicle inspected immediately before driving further.
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