ABS pump Change - C1350 code Actuator Supply permanent fault

HI
Has anyone ever changed an ABS pump mines reading on Lexia C1350 code Actuator Supply permanent fault Ive tried the electrical plug all is in order. Looks like a secondhand one off Ebay are they interchangeable between years my code is 96636673780 on an 2007 1.4 hdi will for example will a abs unit from a 2003 model work. There is one for sale on eBay but it's £150 the same code don't wanna spend that much and find it's still got the same fault. Loads for sale at the £25 to £50 mark but different code.
Any comments would be appreciated. Thanks.

Actuator supply fault? I suppose the first test would be to meter for 12v at the supply pin. But you would need a diagram for that.

The ABS pump has a special bleed program in lexia so you will need that to bleed abs purge it.

What does lexia say about diagnosing this fault?

I have road tested the car with the lexia connected and shows the speed from the wheels I have tried to bleed program with lexia but comes up with something like you can't perform that task on the last screen there is 12 volt showing on the lexia test on the diagnostic test.

You wouldn't know if the C3 2007 as a maxi fuse box there appears to be 2 x abs fuses hidden in there.