[Nine8Six]

Markus, ECU stands for Engine Control Unit buddy.

Modern cars are equipped with what’s known as canbus network. Primary function is you don’t necessarily need to have terminating points hardwired to a switching device anymore for those items to be able to interact with each other’s. The core circuitry and protection however remains as off today, more or less the same primitive one as the one installed in your bathroom, or your office. Less the sensor and central management provided by the CAN, of course. (CAN as in Controller Area Network, Markus)

There are many great write-up online RE canbus, the advantages of HID over old halogen, their power savings, efficiency, etc. Suggest you to take some time to get familiar. Something tells me you'll want to upgrade your halogen to at least Litronics, although not all bi-xenon, still a smart upgrade lolll

I'm out Markus sorry, no offense bud