How do you install a commutateur interruptor switch on a fordfreestar?

To install a commutateur interruptor switch (also known as a combination switch) on a Ford Freestar, first disconnect the battery to ensure safety. Remove the steering column covers to access the switch, then detach the old switch by unscrewing it and disconnecting the electrical connectors. Install the new switch by reversing the process: connect the electrical connectors, secure the switch with screws, and replace the steering column covers. Finally, reconnect the battery and test the switch to ensure proper functionality.