12 3.8 fan module caused limp mode

[Smash101]

From mechanic:

It has a main fuse or relay that went out from plugging the fan into the cooling control module. Something grounded out when plugged in. Module wiring or module itself needs to be repaired or replaced for fan to work. The overheating is from fan not working.

I was able to get a reading on the fuses once I found a good ground for my meter. The hot wire from the relay to the fan computer wasn’t getting power, but it may only get it if the relay triggers. The thing is the fan had no power on it. The plug was disconnected. I researched some last night and it says the genesis can do a good job at cooling itself off just from driving and no fan activating. The control module probably fried before you got the car and they just unplugged it, replaced the fuse or relay that’s blown now preventing it from starting, and kept the car going instead of replacing the whole module. There’s no way that fan was running at all with no power. May just be a coincidence that you had no prior issues with overheating or ac not working as well.

 

[jep604]

The one thing I have learned with owning 2 Hyundai products (2006 Hyundai Sonata V6 purchased brand new and drove for 253K miles and traded for my current 2014 Genesis 3.8 V6 purchased brand new with 208K is that the plastic electrical connectors have issues. With the Sonata I kept losing the 3rd brake light and after changing it 5 times I had a coworker watching the light with brake applied and it wasn’t working. Applied a chock to the brake pedal and got in the trunk and touched the wires and the brake light came on. Long story short, the wire pins going into the plastic receptacles for the “male/female” wasn’t the best for being secured. A small Ty-Wrap secured both sides fixed that issue.
Just a thought…