try disconnecting the neg. battery term. first
A fuse usually blows when there is a short. It's possible you have a short in the wiring someplace.
If only the right rear brake/signal light is effected it is not the fuse. Inspect the right rear brake/signal bulb, socket and wiring.
Check the signal light fuse, the signal light relay, and the signal light switcher.
under the dash in the fuse box
If the signal light fuse is blown all the signal lights front and rear would not work. If you have one signal light out I would first suspect a bad bulb or bad connection.
Short in the wiring, corroded turn signal light bulb socket, or too small a fuse for the circuit. Can also be incorrect size bulb being used.
Under the dashboard on the drivers side, in the fuse block. Just pull it and replace it.
Fuse panel. Look in your owner's manual.
check for shorts in the system
A thought. You may need a converter to change over to LED. I needed it for my motorcycle.
A blown fuse is always a sign of excessive current flow. In this case, it's probably caused by a short circuit in the brake light wiring.
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