Corsa D ABS Pump Failure issue. HELP!!!!

[billy92]

So my corsa had the ABS pump fault, i know all about it ect. So got a second hand part [identical part numbers] and fitted. no problems there. Started to bleed the brakes, done both rears not a issue, moved to the front and started with the same side which originally had the failure [passenger] started the bleeding process and was working, could see fluid coming out the bleed nipple for around 7 pumps then went solid again.



Exact same issue as previous pump on same side? Even removed the brake line from ABS pump just to make sure and right enough no fluid coming out? Cant be a faulty pump as it worked at the start, same with coding? ive heard people say it does not need coded if same part number which it is. And seems pretty strange why it would work at the start then all of a sudden stop?



Any ideas? any help is greatly appreciated.