Bleeding issue

[DarkPassNger]

I recently replaced the rear brake line from the abs module to the rear splitter. when I bleed the system i have lots of pressure at both front bleeders but next to nothing at both rear bleeders but no leaks anywhere in the system....just a few drops no matter how many times i try ...im at a loss....any help would be greatly appreciated.

 

[DarkPassNger]

Anyone?.....does the abs module have anything to do with line pressure under normal braking conditions? I assumed it only affects the pressure if the abs was engaged by hitting the brake quickly or sliding because of road conditions etc.