The 2017 F-150 has a new style computer, this includes the Raptor. On these units we had to add a 12V power supply. This will come from a supplied fuse tap that will go to Fuse slot 99 in the under hood fuse box. It is important that it goes to fuse 99 because the box needs its power running and during cranking. Below are a couple pictures of the 1st test units, the production units will be different only in that they will have weather pack connectors.
https://www.jmschip.com/content/BoostMAX/2017_Raptor/2017F150_JMSFuseTapInstall2.JPG
https://www.jmschip.com/content/BoostMAX/2017_Raptor/2017F150_JMSFuseTapInstalled_fuse991.JPG
https://www.jmschip.com/content/BoostMAX/2017_Raptor/2017F150_JMSFuseTapInstall3.JPG