As on your term "Accumulator Leak" as you diagnosed through scanner i tend to know that you probably having problem whether with Brake Control Actuator Assembly or in Skid Control ECU due to of it you are not be able to demise your trouble completely. To resolve this issue you must in need of perfect technician who has capabilities to use multiple tools like hand held tester to check in DLC 3. I can send you document in which you 'll find step by step complete solution for your trouble like what is means of this trouble code, why is it occurring, at which area you are having this problem, how to diagnose this trouble and finally what is solution for it.
As i can't attach such document through this forum i would suggest to send me your email id so i can send you the document to help you out in such issue.
You are way far from us (In Lahore) or else we could have resolved your concern here in Karachi :).
P.S. even with that detailed document, you are in need a perfect technician in your area to perform such tests as on instruction to find out specific trouble.