Will Car Run Without Instrument Cluster?

True. Some cars don't let you start without the cluster regardless if faults or tripped or not.

Can you drive your car without the instrument cluster?

Can I drive my vehicle while the instrument cluster is out for repair? Yes, you can still start and run your vehicle without the instrument cluster.

Can a bad instrument cluster cause loss of power?

Inoperable instrument cluster

An inoperable instrument cluster is another symptom of a possible issue with the vehicle's instrument voltage regulator. If the instrument voltage regulator fails completely, power to the cluster will be disabled and it will cease to function.