Fan will not shut off when car is off

[Fender34]

After driving the car today, all of a sudden my fan will not shut off after the car is off. Also when I start the RPMs dip below 500 and almost dies. When I give it gas, it steadies out and runs perfectly fine. I think it could be a bad CCRM or a bad relay somewhere?? Is there an other relay I can check? Any help out would be great!

 

[Fender34]

Now the car is completely fine after leaving the battery unplugged all night? Still any ideas of what it could be?

 

[VirtualSVT]

Did you just load or reload a tune?

 

[Fender34]

Nope. All I did was data log it yesterday and everything was running fine. It would just start funny like stated before and the fan would not shut off

 

[big dad]

Electronic relay in the CCRM for the coolant fan stuck. It happens sometimes. When you killed the B+ power it reset. I've seen it happen before.

 

[Fender34]

^would you recommend changing out the CCRM or just leave it be? I can pick up and used one and keep it on hand if I need to

 

[big dad]

It may not happen again but I would keep an eye on it. If it would give you more piece of mind, then change it.