Auto Fold Power Folding Towing Mirrors
If you would like to enable the auto folding mirror function on a vehicle equipped with towing mirrors (the mirrors slide in and out, normally found on Super Duty trucks), you will need to make some minor wiring changes. Without these changes, the mirrors will fold IN when UNLOCKED and fold out when LOCKED - the opposite of what they should do. Inside the front drivers and passenger doors, you need to reverse pins 18 & 19 on the mirror connectors. Instructions below:
Remove the sill trim panel by hand
Disconnect the mirror connector by depressing the retention tab.
Swap the positions of pins 18 (Violet/Brown) & 19 (Green/Violet) highlighted in red below. The door switch operation will be reversed.