Apr 28

Reverse Voltage Spikes & Diodes

Hi all, new guy here!

So, I want to retrofit some HIDs (none CANBUS tricking) (obviously!!) to my 2009 Skoda Octavia (it's a VW Golf GTI with a large boot). I can code away or cheat and use resistors bulb out CANBUS errors, but I've read on some Skoda forums that if I don't utilise some kind of reverse spike protection, then I can end up frying the Body Control Module as it's a bunch of solid state relays.

Am I right in thinking that placing some diodes in the circuit will protect from this? If so, in what configuration would I want to mound these?

Apologies if this has been covered elsewhere, but I seem to get on well with forum search tools!