* It's a misreading or misspelling: Double-check the fuse label. Look closely for a similar-sounding or looking label. Common abbreviations might include things related to specific circuits like "AMP" (amperage rating) followed by a letter indicating the circuit.
* It's a non-standard label: Someone might have added a custom label. In this case, you'd need to trace the wire connected to that fuse to determine its function.
* It's located in an unusual place: While most fuses are in the under-hood or interior fuse boxes, some specialized circuits might have fuses elsewhere.
To find out what the fuse does:
1. Carefully re-examine the fuse label: Make absolutely sure you're reading it correctly.
2. Consult your owner's manual: The manual should have a fuse box diagram showing the amperage and circuit for each fuse.
3. Check online resources: Websites like GM's official site or repair manuals (like Chilton or Haynes) might have fuse box diagrams for your specific year and model.
4. Trace the wire: If all else fails, carefully trace the wire connected to the fuse to see where it goes. *Be cautious when working with electrical systems.* This is best left to someone experienced if you're uncomfortable.
Without the correct label or more information, it's impossible to definitively say what an "AMPF" fuse does in your 2002 Chevy Blazer.
