Quick self-level suspension question-2004 X5 4.4.

[h2oskiphil]

Got the dreaded "selflevel inactive" message a couple of days ago. Vehicle is not riding low at front or rear or at any corner. Compressor is working-I hooked my boat trailer up, and the rear end came up the way it should once the load was on. Seems to drive OK-maybe a little rougher over bumps than normal, but not excessively so.

Took it to an indy today, and he read the voltages coming off the rear sensors while the vehicle was sitting still, with engine on, in a fairly level parking lot. RR was at 2.4 V, LR was at 4.9 V.

Bad ride height sensor on the LR?

If so, fairly easy job to replace? I'm pretty handy-I kept a 150K mile 2001 E38 on the road for 4 years and it never saw the dealership.

Thanks.