How do you remove and replace the ignition switch electric part not steering wheel lock on a 1992 Volvo 940 sedan?

To remove and replace the ignition switch electric part on a 1992 Volvo 940 sedan, first disconnect the battery to ensure safety. Then, remove the plastic cover surrounding the steering column and locate the ignition switch. Disconnect the wiring harness from the ignition switch, unbolt it from its position, and replace it with the new switch. Finally, reassemble the steering column cover and reconnect the battery.