How do you replace wiper switch on 1990 Chevy lumina apv?

To replace the wiper switch on a 1990 Chevy Lumina APV, first disconnect the negative battery cable to prevent any electrical mishaps. Next, remove the steering column cover to access the switch. Unplug the electrical connector and remove the mounting screws holding the switch in place. Install the new switch by reversing these steps, ensuring it is securely attached and the electrical connector is properly plugged in.