Hi,

Hoping someone can offer some advice please. I've got a 2007 range rover sport, hse, 3.6 v8. Going along nicely then the yellow suspension light came on with the suspension fault showing on the screen. The air suspension still operates up, normal and access mode, but the front right seems to have a mind of it's own. The 4x4 display in the car shows the front right wheel dropped with the bar underneath flashing red. The car is going along at a slight tilt (leaning to the left) where the left wheel height, front and back, are operating at the normal height, but the rear right hand side is trying to match the incorrect height of the front right wheel, creating the slight lean. On a couple of occasions, the front right has gone up incredibly high for some reason (even higher than the off road height), the back right has raised to try and match it and I just haven't been able to get it down again until it decides it want's to sort itself out (back to the sight lean) which has taken a couple of hours the last time it did it. Incredibly embarrassing to drive as you can imagine!

I initially thought the sensor had been water damaged as I'd had someone round to professionally remove minor scratches and he used a powerful pressure washer to clean the car and the fault developed the day after. Bought a new sensor from Land Rover, fitted it and no difference to the fault at all so clearly not that.

My brother in law took it to his friend (who's not a land rover specialist but owns a garage with an expensive fault reader!) and they established that there is no power going to the front right sensor. The more detailed error message that was coming up was something along the lines of there being no communication to the ride height control module. Took a guess that maybe it was the ECU if there was no power to the front sensor, so bought a second hand one off ebay, plugged it in and the error light went red, the heights wouldn't change and said max speed of 30mph as soon as the engine was switched off. Rapidly put the old ecu back in, and back to yellow, everything still working. It could be the ebay ecu just isn't working for it to go to major fault mode? But if that's the case, does that imply the current ecu is working as the fault light is yellow and all suspensions are going up and down, but just that front right one seems to like sitting higher than it should.

Given the error message we've had and the lack of power to that front sensor, does any one have any ideas what we could try next please?

With the ignition switched on, check the plug to which the sensor attaches for 5V power between pin 1 (5V) and pin 5 (ground). If no power then check pin 1 to a good earth somewhere and check for continuity between pin 5 and a known good earth point.

There is a connector block behind the guard liner to which the sensor harness connects. It is meant to have waterproof connections but it should be disconnected and inspected for water ingress into any of the pins.

I note that you have a L320 RRS, not a L322 RR.

Yeah, sorry, only had the car 3 months so am really inexperienced with all the types/names for the different variations and wasn't until the early hours of this morning after much internet searching that I realised there was a similar forum to this for L320s.

Thanks for the advice - am having to rely on my brother in law to do the physical work so will show him your advice and let you know how we got on with that once he's had time to check

you'd be better of joining the RRS forum where you can ask specific questions about yours,

http://www.rrsport.co.uk/forum/ ... - .- -.




Y. O. L. O.
.

Have joined that forum, thanks very much. Will still try the advice given above, but feel free to delete this thread if you want. Thanks very much