Where is the starter relay on a 2002 Cadillac deville?

The starter relay on a 2002 Cadillac DeVille is typically located in the underhood fuse box, also known as the power distribution center (PDC). It's not always easily visible and may be integrated into the fuse box itself rather than a separate, easily identifiable relay.

You'll need to consult your owner's manual for a diagram of the fuse box. The manual will show you the layout of the fuses and relays, and should identify the starter relay specifically. Look for a diagram that depicts the underhood fuse box and identify the relay associated with the starter motor.

Without the manual, locating it will require carefully inspecting the fuse box. Many relays are similar in appearance, so relying solely on visual inspection might be unreliable. Using the owner's manual is the best and safest approach.