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Tuesday 31 May 2016

Car Fuse Box,Car Relays,Car Ignition Switch Wiring And Fitting

Fuse Relay Ignition Switch Wiring Details With Diagrams


Fuse Panel, Ignition Switches, Etc... How to Wire Stuff Up Under the Dash.

How do you wire up the fuse panel? What do you need to do to the dash? How's the ingition switch fit into all this?
First you have to figure out what you've got to work with. Are you using an original ignition switch? Is it from an older car? Or are you starting from scratch and have a new universal ignition switch?
If you still want to run the original switch, it's probably not capable of carrying enough current for modern needs without seriously limiting the the voltage or burning out all together.
However, there is a way to keep it and still use it to power everything. That's right, our old friend the relay.
The relay is just an industrial sized switch. With it the older ignition switch can still be used, but now it will simply turn on and off the relay which takes hardly any juice at all... And it's simple to do:
oldswitch
Now if you have a newer style switch, they're capable of handling much more current. However, if you're running lots of accessories, then you still may want to run a relay.
Now, to wire up your fuse panel, look at the following diagram. Note that only one wire power wire can run a few circuits on the fuse panel. You use jumper wires. Some aftermarket ones come with them, and others you just make your own.
fusepanel
Now, for a simple system with basic accessories and a newer switch, here's a good way to get wired up:
underdash
While this isn't the only way to go about wiring up under the dash, it's a good safe way that won't burn your car down. Every circuit is seperate and every one is fused. It also makes chasing down a problem much easier.

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