Does anyone know if the Body Control Unit (BCU) in the fuse box of a 2014+ Plus 4 GDI has the interior light relay already built into the PCB? even for a car currently without a factory fitted set of interior lights?
I can see the 2 pins (Pin 10 Orange & Pin 22 Orange/Black) on the BCU relating to the interior lights exist and have continuity back to the wire connector's under the dash, however I don't find any earth output from the Orange wire connector. This makes me think the relay is missing, or that some other connection is required to be plugged in?
I also found the Orange and Black wires for the door switch exist and applied an earth connection to see if that solved the issue, however no earth source from the orange wire was found which makes me think the BCU does not have the interior light relay fitted as standard.
On the plus side, I can find a constant live Brown/Blue (+Pos) connector under the dash for the lights. Also, in the case of my car, the door A post is already prepared with a cut out for the door switch
