Sync 3 Retrofit Illumination Issue

I have retrofitted Sync3 to my 2015 S-Max (early mk2) but I seem to be having an issue with the screen thinking it is dark.
The screen boots up, but then immediately dims, and goes into night mode.
I have tried reconfiguring and building from the ground up. The asbuilt appears to be correct for my vehicle type.

AsBuilt
7D0-01-01 0B6A 255A B0**
7D0-01-02 023E 6A46 C2**
7D0-02-01 554B 0104 03**
7D0-02-02 5354 8020 20**
7D0-02-03 2660 **
7D0-03-01 0200 0002 00**
7D0-04-01 0100 1B00 26**
7D0-04-02 0007 **
7D0-06-01 80**

All other illumination in the cabin works as expected.

I do have an active DTC U0155 so i know there is a communication issue between APIM and IPC


SYNC Region: EU

Navigation Variant: Nav

Manufacturer Year: Unknown

Install Type: Replica

Old SYNC Version: 2.0

New SYNC Version: 3.4

Do you have a error message, if so what is it?
No error

Update Method: CyanLabs Manual Method