INTERIOR ELECTRICAL CENTRE (SECONDARY FUSE BOX 1B) - High Load Auxiliary Switch Panel option
This mini fuse box is installed if you have the aux power option in your car. The fuse box is located on a bracket between the 7 stud busbar and the Main Battery.
Mini blade fuses used
The Mini blade fuses are used are rated at 5 amps (single fuse) and 25 amps (3 fuses).
Relays
It appears the fuses are used to fuse the four 614 Relays.
Image
There is no fuse diagram at present only a photo from a Production vehicle.
View attachment 7851252
High Load Auxiliary Switch Panel image and diagram
View attachment 7851259
View attachment 7843571
Diagram courtesy of
@Rok_Dr
Wider view with arrow pointing at mounting bracket.
View attachment 7843050
APPARENT POWER SOURCE FOR THE HIGH LOAD AUXILIARY SWITCH PANEL (FUSE BOX 1B)
The power for the High Load Auxiliary Switch Panel option (Fuse Box 1B) appears to come from Stud 4 on the 5 Stud busbar with a ZCASE® fuse rated at 80 amps.
See here. Also check the busbar fuse if there is no power to this fuse box.