2023 Ford Transit, upgraded from the base sync 4” to sync 3 but then added sync 4 APIM, both using the 8” screen, neither sync 3 or sync 4 show the reverse camera, sync 3 will show a blue screen and reverse sensors are present just no video. Checked wiring and and everything, tried to do a LIN calibration but it fails as BCM has an error code B115E:08 , I cannot get the backup camera to work for anything, Vehicle never had camera issues before and only has 2k miles so it’s unlikely anything is wrong with the camera.
Any suggestions?