Soldering Wire

[LeeHabbers]

Good morning.

I'm going to be doing an electrical repair on the wires going to the rear passenger door on my 2011 Corsa D in a few days. I have been told that soldering wires together can mess up the ECU cause of the voltages or something, how true is this?

Many Thanks
Lee

[LeeHabbers]

Goody gum drops. I did think it sounded bks but just thought I'd check. I'll unplug the battery to be on the safe side.

Thanks
Lee