I have a 71 Charger SE with hidden headlights, the motor works well and when the key is on they open and close with the headlight switch as they should, but when I turn the lights off with the key still on and the headlight doors close, the relay under the dash will start clicking after a few seconds.

I think this is because whatever part of the motor senses that the headlights are closed isn't telling the relay to stop sending power so the relay will click as heat builds, or is it a bad relay?

could I be onto something and how do I fix it without blindly swapping parts?