Where are the headlights relays on a 2001 ford crown vic?

The headlight relays on a 2001 Ford Crown Victoria are typically located in the Power Distribution Box (PDB), often called the fuse box under the hood. It's usually positioned on the driver's side (left side in the US) of the engine compartment.

However, it's crucial to consult your owner's manual. The exact location and identification of the relays may vary slightly depending on specific options and build. The owner's manual will have a diagram of the PDB showing the location of each relay. Looking at a diagram in the manual is more reliable than general information. You'll likely find the headlight relays labeled or easily identifiable by their proximity to other lighting circuit components.