How do you replace the blower motor on a '98 Toyota Corolla?

To replace the blower motor on a '98 Toyota Corolla, first disconnect the negative battery cable to ensure safety. Remove the under-dash panel on the passenger side to access the blower motor. Disconnect the electrical connector and remove the mounting screws to extract the old motor. Install the new blower motor by reversing the steps, ensuring all connections are secure before reconnecting the battery.