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How can you tell if an automobile fuse is blown?

You can tell if an automobile fuse is blown by visually inspecting it. Look for these signs:

* A broken filament: The thin wire inside the fuse will be broken or visibly separated. This is the most obvious sign.

* A blackened or discolored fuse: The fuse body might be darkened, charred, or melted. This indicates excessive heat due to a short circuit.

* Using a fuse tester (most reliable): While visual inspection is often sufficient, a fuse tester provides the most accurate confirmation. This small, inexpensive tool will indicate whether the fuse is blown or not.

Important Note: Always turn off the ignition before inspecting or replacing fuses.