How do you change rear motor for wiper on 1991 Toyota Previa?

To change the rear wiper motor on a 1991 Toyota Previa, first, disconnect the negative battery cable to ensure safety. Remove the wiper arm by unscrewing the nut and pulling it off, then access the motor by removing the rear interior panel. Disconnect the electrical connector and unbolt the motor from its mounting bracket. Install the new motor by reversing these steps, ensuring everything is securely reconnected.