Dlight

I have a 2015 Ford fusion titanium energy. Just recently I went to my car and found water in the trunk and couldn’t find where it could come from. Then I plugged in my FIXD sensor and it came up with something like hybrid battery pack or something like that. I ended up taking it to ford and found out the the hybrid battery cooling fan is not working. I looked it up on how to replace and choose to do it myself. But I’d still like to know where the water came from?? If anyone has an idea, let me know. Thanks