which connector is this

[ditn]

Thanks for the help btw

Ahum so rear lights was actually rear brake lights,its been way to long since i was able to drive into an ae86
The switch on brake pedal was bit bended so it wasnt all the way in which made the lights always on.

+B and +B1 get power from a black/red wire on the Passenger side panel. The power comes from the EFI main relay!
the connector i have shown were is this normally connected in an ae86?

Going to be checking this out now
Could the efi main relay actually be broken.
So it goes from efi main relay -> fuse box driver side-> behind dash to yellow ecu plug?