Hi David,
These vehicles have most all the electronics get their power from what is called the integrated power module or IPM. Basically, this is a fuse box and a control module combined into one part.
The fact that this happened in a driving rain, it sounds like you have water intrusion in the IPM itself or the wiring harnesses that come out of the bottom of it.
The fact that you said the horn and wipers don't work, you will see there is not much to these circuits once you get out of the IPM.
I included a picture of where the IPM is located if you would like to inspect it for water intrusion.
Let me know what you find and we can go from there. Thanks
Images (Click to enlarge)
Apr 28, 2019 at 2:37 PM
