I think i will, as it just sounds bizarre! If it's doing the opposite, does it try lower when you press it to 4wd Raise height? Will certainly be interesting to see what happens when you replace the sensors. Def right decision. If it still, does it with new sensors then the switch(& Or switch system) itself, surely something to do with it. I'm lucky i simply get the completely random ''Suspension fault'' <[ ]> that comes up every now and then. Good luck. Ps. Is there a decent thread about the Rear entertainment system? My head rest Screens are not working and I've located a disconnected Fiber Optic cable under the drivers seat. No moisture in the tailgate etc as i've read many others with the problem have had. Cheers. Attached Pic of my Beauty for ya!

 

Are there Johnson rods or such installed onto the sensors? If you are not sure, a pic posted here can help. Rods and calibration do not mix well.

As for sensors, a GAP tool or such can read the live data and show erroneous data issues. Or if you have a NAV screen and ever see a single sensor show red dash while rest are while when on level ground, faulty sensor.

 

[QUOTE=FUNKRANGER;849617]Ps. Is there a decent thread about the Rear entertainment system?
[QUOTE]
I am not sure about this question as I have never used that system nor have my passengers so I have never chased issues with that

My Rover goes up to off road height just fine and will come back down to normal ride height as well. The issue presents when I try to lower to access height. I don't really care about access height to be honest but I am chasing this to make it right and so I can calibrate the suspension again. I have a friend who suggested I just install the coil spring kit and be done with it but I told him that I might as well drive a Toyota then! LRTime on youTube always picks on the Toyota owners. If you haven't seen their channel it is a pretty good resource for repairing Rovers!

On edit: Nice ride!

 

There are no Johnson rods or anything else like that installed...strictly OEM. I have the iLand diagnostic tool and it does quite a bit as I am finding out by working through this. I have not found a live data screen however. I DO own a Snap On Solus Pro that would give me some help there but I have been afraid of mixing my efforts with two different tools. As of yet I have not plugged in the Solus to my Rover. I am the second owner of this LR3 and have owned it for 50,000 miles now. My vehicle has just over 190,000 miles and most of the components are still the originals as far as I can tell. I have replace the air spring in the right rear twice now but the others look like original equipment. Of course we have replaced seals, bushings, transmission filter kit and the like in the course of normal maintenance but as far as the suspension system it looked original yet. I am replacing almost all components of that system except the lines themselves by the time I am done with this so I am hopeful that the ride height sensors take care of the remaining issue.

I have installed a new battery, compressor was new in September, now a new air spring on RR, new central valve block, new rear valve block, (I have a front one as well to install yet), and now the ride height sensors coming. Can't be much more unless the controller itself has issues or my system needs a reflash to get well.

 

Never rule out wiring. Not sure if in this thread (so many!) but I myself had a front valve block issue. Was a bad wire somewhere between front wheel well and the block (so basically along the underside of the radiator). I never found the actual damage, just ran a new wire and spliced each end in. Problem solved. So... there is always that. Which is why I also mentioned live data. Cause if it did show something at all, you can indeed swap in another suspected good sensor and see if the same results - same result means wiring, no bad data showing means sensor. Just food for thought. Use all the tools you have!

 

I see you have the HSE, I think those were all standard with the 4x4 info/nav screen. If you have it, pull up the 4x4 info and watch the red hashes next to the wheels while you call for access mode. Are any of the hashes higher/lower than the other 4? That can tell you which, if any, sensors are throwing bad data.

The other option is back probing the signal wire in each sensor with a DMM. You want to see if the voltage returned by the sensor to the ECU “makes sense” as the vehicle moves between normal and access height.

 

That screen only shows me white marks possibly slightly off from one or the other but hardly enough to tell. Thank you for your post.

 

Mine did the same I replaced the hdc terrain odule inside the cab and now works perfect buy new not second hand and remember to have the new unit reprogram hope this helps