The engine compartment fuse panel is on the drivers side next to fender. You can take it apart pretty easily to check the wiring. The box next to the battery is the cars electronics(ECU, BCM, RCM) and the wiring goes out the back into the cabin. You can pull the battery and easily see what under it(not much). Mice can get into all sorts of areas and nibble you to insanity..... check the connections at your plugs and at the coil packs just to be sure they are good also. Hope you find the problem quickly.