Typically, fuses blow for a reason. Short circuits are one of those reasons, and the sparking suggests that something on that circuit has indeed shorted out, or at the minimum, drawing a lot more current than it should be.

Check out what is the problem. You don't want your car to go up in flames, do you?

-- Kane

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While I would never deliberately mislead anyone, take into consideration that any information and advice provided was at no cost to you.