MY2013 has thrown up Transmission fault.
The code it is giving is " RDCM Rear Differential P1889-14 oil pressure pump performance-General electrical failure- circuit short to ground or open".

Anyone experienced this?.Could it be an cable to a connector or such like and not an actual pump failure.
The vehicle still drives normally,but I cant select any of the special traction functions.
Much appreciated Thanks
John MY2013 GS SD4 Baltic Blue

Happened to me as well a few years ago, the "transmission fault - traction reduced" message related to the Haldex unit in my case (not the diff itself) and would appear on and off. The fix was a pump within the Haldex unit, if I remember correctly. Was fixed in spring 2013, no issues since.

If it's not the pump itself but instead an electrical connection of some sort, I guess trial and error will eventually work to find out.

The vehicle kept driving normally for me as well before I fixed it, but I believe it was only running in 2WD. I think the vehicle electronics figure out there is an issue with the Haldex and only distribute power to the front. A quick acceleration on some wet grass might answer that!

johnlr2 wrote:

MY2013 has thrown up Transmission fault.
The code it is giving is " RDCM Rear Differential P1889-14 oil pressure pump performance-General electrical failure- circuit short to ground or open".

Anyone experienced this?.Could it be an cable to a connector or such like and not an actual pump failure.
The vehicle still drives normally,but I cant select any of the special traction functions.
Much appreciated Thanks
John

Possibly speak to Austen but only of course once you find no one else has given a cheaper differing answer here.  FL2 MY10 TD4 GS traded in at 2 years
FL2 MY13 TD4 GS Current

Like yours my is also MY13.
Had this fault last Feb. Haldex pump and fluid were replaced by Team Valley LR.
Search "traction reduced" in the forum.

Traced to haldex pump motor.Had haldex serviced and motor replaced by Bell engineering.Excellent service.
Thanks all for the suggestions.  MY2013 GS SD4 Baltic Blue