How can you tell if the wires of the dishwasher are grounded?

To check if the wires of a dishwasher are grounded, first ensure the appliance is unplugged or the circuit breaker is turned off. Use a multimeter to measure the voltage between the ground wire and a known live wire; if the reading shows voltage, the grounding is likely intact. Additionally, inspect the grounding wire connections to ensure they are secure and properly attached. If you're uncertain, it's best to consult a licensed electrician for a thorough inspection.