Yes very good idea on ugly multipla relays in box to right of battery can be removed one at a time checked and replaced.I was wondering if it was a relay... but no idea which relays do what. My handbook only refers to fuses , and not the relays . There are 5 , one square (black) two half size (black) and two half size (Red) . Maybe I need to check these ?
Removing and replacing can make a difference.