My 1995 4runner the mirror is powered off of the 7.5 amp Radio fuse. According to schematic.

Do you know if you have power at the switch? If both mirrors are failed then I would focus troublshooting on things common to both mirrors first.

See this link from the 1993 FSM stickied on the early truck forum. It is very detailed and includes troubleshooting tips/procedures.
http://personal.utulsa.edu/~nathan-buchanan/93fsm/bodyelectrical/9powermir.pdf


1995 4Runner Limited V6 3.4 Liter 5 Speed 4x4
1995 4Runner V6 Auto 2WD