How do you replace a blower motor relay on a 1990 Oldsmobile delta 88?

To replace the blower motor relay on a 1990 Oldsmobile Delta 88, first locate the relay in the fuse box, typically found under the dashboard or in the engine compartment. Remove the cover and identify the blower motor relay, which is usually labeled. Disconnect the electrical connector and remove the relay from its socket. Install the new relay by pushing it into the socket and reconnecting the electrical connector, then test the blower motor to ensure it operates correctly.