Not Ranked
I'd disconnect the tach to isolate it to either the tach or the lite system--
then--if its the lite system--first turn on the parking lites to check them, then just the brake lites, brake lites and parking lites,turn signals rt and then left, turn signals r plus brakes, l plus brakes--this should isolate exactly which area to look into--
On fiberglass cars/boats everything has to be individually grounded---I have found(on a SPF ) where at the right rear the wires were on the taillite in correctly and was feeding the hot wire to the common ground of one bulb---it would blow the fuse with the combination of turn signal, parking lite, and brakes---
The problem is probably at the socket for the bulb that lites up on braking---
|