Hey there Juiced46,
I double checked the manual, the handbrake does plug into the pedals. Theres no location for it in the CSW v2.5. I hoped we had it figured
-Is there a way to upload images without going through another website? I have not done this yet in forums.
-Handbrake test #1- going through laptop with "fanatic USB pedals Properties" to test and check functions. These are running driver 311 Beta, and Firmware 1.30. I went through Firmware updater again to retry it with No success. It "verified Running", "erase/program/verify completed successfully", "device successfully reset", "Update successful". It was happy, but it still didn't show the handbrake at all, and still No functional Driving Use in Project Cars.
-Handbrake test #2- I did some deeper checking with my multimeter on the potentiometer. There are 3 wires terminals and heres the resistance of each at rest, than full pull. Hope it doesn't throw everyone off, my digital meter was jumping up and down a little even without touching something. I have found that it still gives me a range to work with, so it should tell us if my setup is Totally out of whack! This is looking down the Handle towards the back of the female plug and from the removed cover side. 2 terminals Across from each other stay the same at 9.48 ohms. The left term and center 5.2 at rest, 10.3 Full pull. Left and center 7.2 at rest, 2.0 full pull.
-Handbrake test #3- Using that Pedal Properties test program in the laptop I tested all functions of Pedals and All checked out fine. No handbrake function though, but weird thing is that a tiny amount of the Blue Bar at the bottom Showed up. The small Blue Bar went away when I placed a small amount of pressure on the wire going from Handbrake to the backside of the pedals when applied at the USB end under the pedals!
-Handbrake test #4- Going to do when I get home, disconnect the handbrake (like you mentioned

) and test system in the game again. Been super swamped at work and no time to even work on this.

That would tell me that it is causing a glitch (maybe) with Project Cars and No function in the game, but working when in the menu since the handbrake does nothing for menu functions (to my knowledge)
I saw there is "remapping button" option, I will check tonight where there is another option for calibration. Or better yet, where would I look for calibration?
I don't have anything else plugged into the USB's in the Xbox 1, I do have the USB going to the Fanatec setup via a USB Extension since In my space I can't get them close without everything getting in the way. After trying the above tests with No change, I will place the Xbox close and direct with Fanatec supplied USB. I also am using all factory supplied power adapters and cords except that one extension.
Thanx a mill!