The preexisting Electric Fans output in Basic I/O - System Parameters (System ICF), don't utilize the custom Inputs/Outputs ICF. And vice-versa, a custom created Electric Fan Output in the Inputs/Outputs ICF, doesn't involve the preexisting Electric Fans output in Basic I/O - System Parameters (System ICF). Please read post #1 of this forum thread again. Of course, both types will require Pin Mapping.