BMW E39 525i ABS Unit

Hey lads, got my car plugged in earlier to check for the ABS trifecta, the code that kept remaining was 81: Brake Pressure Open Circuit, a member on BMW5 had the exact same error and symptoms as mine, so with that looks like my module is definitely faulty as I previously replaced the Pressure Sensor, all Speed Sensors reporting normal readings. I have a 005 Module unlike the typical 001/002 one's. I take it you have to replace with the same 005?

005 is same 002 unit! one of these numbers is on main - pump part,other number on electric part . only 001 is completely different ABS unit

Ah right, perfect, sound!