To be certain, you should:
1. Consult your owner's manual: This is the best resource for the precise location in your specific vehicle.
2. Check online forums: Search for "1993 Suzuki Sidekick fuel pump inertia switch location" on forums dedicated to Suzuki Sidekicks or automotive repair. Pictures from other owners can be very helpful.
3. Look carefully under the dashboard: Feel around the passenger-side area for a small, usually square, black box. It might be near the fuse box or other electrical components.
Remember to be careful when working under the dashboard to avoid damaging wires or other components. If you're not comfortable searching for it yourself, it's best to take your vehicle to a mechanic.