That depends on the fault and on whether water can pass safely through the existing waste connection. Keep the disposer electrically isolated and ask the engineer whether ordinary sink use is acceptable for the reported problem.
What the observation tells you
A failed motor with a sound, free-draining water path is different from a leaking body, loose mounting or blocked outlet. Do not test an uncertain leak by filling and emptying the bowl. Keep food scraps out even if small amounts of water appear to drain.
A useful next step
Use another suitable washing point if the water path is unsafe. Mention any dishwasher that shares this connection before it is used.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.