With headlight switch in OFF position the brake lights work normally.
With headlight switch in either ON or driving light position: brake lights on left and right stay on unless brake is pressed, then they go off (backwards yes?) but the top center brake light continues to work normally - off until brakes are pressed then on.
Dealer says it is probably the brake switch or a relay. However they say it may take quite a while to diagnose and they have to charge for the time. Can I troubleshoot this myself?
Suggestions?
(please respond to news group as my email is spam blocked)