Electrical issues on 2018 brz
 

Hello, I have front damaged 2018 Subaru BRZ, there happened short circuit on driver side headlight 3 pin cable, after this everything stopped working, like electrical steering, wipers, power windows. Stereo and throttle was working at first after that short circuit, but later it stopped also. i checked everything what could I found on this forum. Main fuse, other fuses and relays seems okay. Alternator also works. I have no idea what to check now. Maybe anyone knows what to do?

if all the wires are good, then i would suspect the body control module

I was thinking about it also but could it be blown so easily? Or could it cause preventing throttling or turn signals? Turn signals not working also, but emergency button( which turns both turn signals on) working

Many people have blown them just by adding after market lights so a short most certainly could. It has all the symptoms.

Thanks for a reply. Does bcm have no fuse to prevent blowing it so easy?

i believe the individual outputs are fused later on, but as tcoat said, people used to blow it just installing led light bulbs, so it's less about the power draw that does it in.

It is a computer and as such does not do well with power surges. Fuses prevent overheating the system and burning up but they are not fast enough to prevent surge damage.

I saw it has fuse #36 which is working on my car, i will try to change bcm, but still I don't get how it is connected to throttling for example

Also cooling fan relay ticking all the time and turns fans on when I just turn key once and open ignition

Fixed almost everything except throttling, it was abs/steering fuse in interior and also power outlet no2 fuse. Throttling is because of abd block i think, it seems faulty because of crash probably. When I insert green squared 40A abs fuse, block buzzing all the time