I had a problem with my Honda Crv 2009 diesel 72000 miles. The steering judders on bends and roundabouts, it felt like the steering wheel was pulling out of my hand.
I changed the diff fluid as all the forums suggested, it didn't make a lot of difference, then I drove in a tight figure 8 on a car park, 1st gear steady speed about several times. Steering no longer pulls and works great.
I belive if the actuator on the duel pump isn't activated it can clog and cause the pump to malfunction.
Anyway it worked for me. £20 for the Genuine Honda fluid and about an hour to change and drive.
I hope you find this useful and it works for you as well.

 

Thanks for sharing, Liggy