My wife has a 99 sunfire which keeps blowing the fuse for the signal lights as soon as you move the shifter into reverse ( it's an automatic ). any suggestions would be appreciated

I just replaced the plugs and coil pack on my 98 Windstar because I had no spark to the plugs. An easy and uneventful two hours. It was running fine and suddenly died while driving. At that point, it would crank or rotate fine, but had no spark for ignition so I took a guess at the coil pack and picked the plugs up the same day since they were due for a change. It's still cranking away with no spark to ignite it. My question is....Is there a fusible link or replaceable fuse in the ignition cirtcuit that is stopping spark or stopping the coil from sending it? I don't have a fuse assignment sheet for the power distribution box under the hood and I'd like to locate one if possible. Thanks in advance for any help or advice, Kevin Gallagher