1988 Ford Mustang LX convertible. on 1990 Ford Mustang LX

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What would cause the AC/heater blower, convertible top motor and the turn signals to quit working at the same time? No fuses under dash appear to be blown. Are there other fuses, fusible links? Where are they?
(1) Answer
Got manual? Look under hood find fuse relay box and check fuses there.
Yes it could be a fuse link, but they are located in various places. You
wil need wire diag. to find these links.