This is the setup I've seen everywhere so I must be right but it doesnt make sense to me. The issue i have with it is this. pin 85 on the relays operate the coil inside to switch the relay. So when the high beams go on its pin 85 goes hot and that means for the low beam to work its pin 85 must also go hot. So isnt the diode installed in the wrong direction? The anode should face the high beam so current flows thru. Or am I reading the circuit wrong?