faulty ABS pump??

[jbe]

After all my electrical dramas, I had another major issue pop up and I would be very grateful if someone could help me diagnose it. I searched the web for this issue and also looked on this forum, but couldn't find much relevant information.

My car is a 2005 Defender 110 TD5

On a recent holiday trip, I had the three amigos pop up and since then, Nanocom persistently shows these two errors:

- 10,4 gearbox / abs drive open load logged (in the engine menu)
- 13-05 pump failure 3 (pump sticking) intermittent 13 times (in the Wabco ABS menu)

I cleared them a couple of times, but they keep coming back. As far as I can see, all ABS sensors are faultless.

My Landrover mechanic told me that I need to replace the pump and the control module.

The details of the ABS pump are:
wabco 478 408 022 0
srb 500041 04 005763

I was told that this unit costs approx $3000 plus 4-5hrs labour to swap.

My questions are:

- with the codes above, do I most likely need to replace my ABS pump, or could it be something else?
- has anyone had a similar issue and how did you fix it?
- is there someone in Aus who refurbishes these modules (there are some places in the UK and the US)?

Any help would be appreciated
Joachim