Hello and thank you for using Just Answer
these codes are related to the transmission
condition of the transmission fluid or a loose filter can cause these codes
click here for more information on p0841
there is also a TSB for code p0841 involving replacing the transmision solenoid assembly
click here to view the Technical Service Bulletin (TSB)
I would start by having the fluid and filter checked. and if ok you may need to have the TSB done.
let me know if you need more help