⚠ Safety note: This guide involves working with electricity. If you're not completely sure about every step, stop and call a licensed professional. Before you start, always switch off the power at the breaker or close the main water/gas valve.
1 Turn off the vehicle and locate the correct box
Remove the key and turn off all consumers. Locate the fuse box in the cabin or engine compartment and the exact position of the fuse for the device that is not working, according to the vehicle manual.
2 Confirm the rating and amperage
Check the position number on the legend and the value in amperes on the fuse. Color helps, but rely on the stamped number and casing type.
? Tip: Photograph the layout before removal; empty slots in the box are often normal, and not all positions are intended for a fuse.
3 Remove and test the fuse
Pull the fuse straight out with the puller. A blown metal strip is often visible, but a multimeter in continuity mode gives a more reliable confirmation.
4 Install the same type of fuse
Insert the new fuse fully into the slot. It must have the exact same amperage rating; a higher value can allow the wiring to overheat before cutting off the current.
⚠ Warning: Do not bypass the fuse with wire, foil, or a fuse of higher amperage rating. Doing so removes the fire protection of the wiring.
5 Turn on the consumer and monitor the condition
Replace the cover, turn on the ignition, and briefly test the device. If the new fuse blows immediately or again, turn off the consumer and look for a fault in the wiring or the device.
When to call a professional: If the job involves changes to the electrical panel, the main gas line, or load-bearing walls/beams — or if you're not sure how it will turn out — this is not a DIY task. Hire a licensed professional.