Based on your description of events, most likely something isn't connected. Different systems (lights ignition, etc.) Operate on different fused circuits where the battery is the only common source of power. There is no single, main fuse. If there was a fuse or fuse link problem, something, somewhere in the car would work.
If nothing at all works, make sure the battery is installed correctly and all necessary wires are connected.
Once you get that solved and you can start the engine again, you might want to check the charging system and find out why the battery went low in the first place. If the battery tested good, that suggests the charging system wasn't working.
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Wednesday, April 28th, 2010 AT 3:36 PM