If you provide some information such as year, make model of vehicle, S/N number to the module and the issue you are experiencing, perhaps the people on this forum can help.
If you do not want to provide that information here I would suggest contacting fortin directly at firstname.lastname@example.org or at 1-877-336-7797.
If you wish to return the product simply contact your point of purchase with regards to the exchange and return policy.
You must keep in mind that the installation guides listed on fortin.ca are tailored towards technicians, people doing this day in and day out. So yes, they are complex, this is to provide accurate detailed information to tech's in the field.