To find the relevant relays:
1. Consult a wiring diagram: This is crucial. A wiring diagram for your specific year and model EB Falcon will show you which relay controls which circuit. You can often find these diagrams online through forums dedicated to Ford Falcons or by purchasing a repair manual.
2. Check the fuse box: Many lighting relays are located within the fuse box itself, often under the dashboard on the driver's side. The fuse box cover usually has a diagram showing the fuse and relay locations.
3. Look under the dash: Some relays might be mounted separately under the dashboard, potentially near the fuse box.
4. Check the engine bay fuse box (if applicable): Some vehicles have a secondary fuse box in the engine compartment which could house lighting relays.
Without knowing which lights you're troubleshooting, it's impossible to give a more precise location. If you're experiencing a lighting problem, start by checking the fuses first, then refer to a wiring diagram to identify and locate the appropriate relay.