This little guy controls electrical flow to a specific circuit. Basically, it opens or closes a connection, turning something on or off – could be lights, a fan, something in the engine bay, really anything electrical. There are different types of switches, of course, some handle more power than others, some are momentary (like a horn button), others are maintained (stays on until you turn it off). But the core function is always that on/off control. Think of it as a gatekeeper for electricity. The battery’s always sending power towards whatever needs it, but the switch decides when that power actually gets there. It’s part of the circuit, so if it fails, that specific thing it controls won't work. It's usually wired in with a relay, too, so the switch itself isn’t handling a ton of amps, the relay does the heavy lifting. Well, imagine your headlights suddenly stopped working while you’re driving at night. Or your windshield wipers quit in a downpour. That’s what happens when a switch fails. It might seem like a small part, but it’s crucial for safety and convenience. It acts like a shield, protecting the rest of the electrical system from overload. You’ll notice if one goes bad pretty quickly – the thing it controls will just stop working. Fixparts Online has a pretty good selection of these if you need to replace one. Sometimes it’s a simple fix and can save you a bigger headache down the road. Your peace of mind matters: Enjoy a 12-month warranty on Switch (MPN 0340603001)!

About Bosch

With a heritage of innovation, Bosch provides dependable and efficient automotive components that set industry standards.

Why Choose Bosch?

• Bosch parts are known for being reliable and lasting a long time, saving you money in the long run. • They work well right out of the box, so you can get back on the road quickly and easily. • Bosch invests a lot in research and development, meaning they’re always improving their parts with the latest technology. • Whether you drive a newer car or an older one, Bosch has a wide range of parts to fit your vehicle. Drive with confidence – choose Bosch parts at FixParts Online.