LLAMS electronic height controller for D3/D4/RRS

[Graeme]

The LLAMS electronic height controller kit for D3/D4/RRS air suspension is now available from Davis Performance Landys (www.davisperformance.com/contactus.html) for DIY installation or to be fitted by a workshop. The kit RRP is $594 incl GST.

The controller is intended to be used in normal height mode to allow use of full or partial off-road and high-speed heights at any speed and return to normal height at the driver's discretion. Its small rotary switch (c/w tri-colour LED) can be operated whilst stationary or whilst moving and has -20mm (green), normal(off), +30mm(orange), +50mm(red) settings in that order. +50mm when used in off-road mode equates to about super-extended height which would be limited by the off-road mode speed limitation. Use of extended or super-extended mode height in conjunction with +30mm or +50mm might trigger a suspenion fault due to fully-extended suspension. There is logic that attempts to prevent this from happening by not allowing the extra height at extreme articulation but might still allow too much movement in order to not unduly limit extra height. Switching the controller to normal then cycling the ignition should clear any such fault. -20mm can be used with access mode for even lower height for people with mobility difficulties.

The system modifies height sensor signals to cause the suspension ecu to think that the vehicle is too low or high and makes use of its self-levelling function. The suspension ecu will wait for about 5 seconds before adjusting heights as it does for any self-levelling, unless a height mode change is occurring whereby both changes will be implemented together. +30mm provides improved bump-stop clearance and thus better ride without using full off-road height. -20mm is LR's 160kph+ height.

A special loom plugs into the vehicle's wiring harness under the dash. Possible switch mounting positions are in the D3's small blank panel behind the EPB switch, instead of the D4's driver's accessory power socket or in the earlier RRS's shelf that surrounds the display screen. A loop-back plug is included so that the module can be electrically removed without having to de-install the special loom. As LR modified height sensor/ecu electrical operation over the 2005-2010 models, a calibration process to learn off-road height increments for each sensor must be done as part of the installation to avoid having vehicle-specific kits. This also allows the kit to be moved to a different vehicle and calibrated for that vehicle. Re-calibration is not required if the module is refitted after being temporarily removed.



Edit: Rich has very kindly produced some excellent installation documentation and with his permisison, here are the links:

Loom installation & module V1.0 calibration:
http://www.box.net/shared/nxtbf4yd4p

Loom installation & module V1.1 (includes recovery mode) calibration:
http://www.box.net/shared/zzgi1qs5rt

Loom installation & module V2 calibration (2M:
https://www.box.com/s/46ezof3vcgc9zvo2i9do

D3 Switch Installation:
http://www.box.net/shared/y90mhxmire

[~Rich~]

What can I say?
Awesome kit, thanks Graeme.
Makes an addition 5 choices of heights to the 3 standard!
Easier for my 85yr old father to get in, better off road clearance too!

[Graeme]

Pictures of the kit contents are at Message - AULRO Photo Gallery

[Graeme]

My appologies to the Qld purchaser whose kit didn't include a switch lead. BD has checked his remaining stock for completeness.

[Basil135]

Have you guys looked at something similar for the D2 with SLS?

[Bushwanderer]

I may be completely off-track here (I often am ), but isn't the SLS on the Disco Series II only applicable to the rear suspension? If true, there is no advantage in a Llams setup for them.

[Basil135]

I may be completely off-track here (I often am ), but isn't the SLS on the Disco Series II only applicable to the rear suspension? If true, there is no advantage in a Llams setup for them.

You are right. The SLS does only work on the rear suspension.

However, there are times where it would be particularly useful to lower the suspension. Now, this is possible by buying a special remote. But the cost of the remote, and then the reprogramming, is slightly prohibitive.

Llams setup seems to have overcome some of the problems a few of us have been looking at to achieve the same result, which is why I was wondering if it could be adapted to the D2. Unfortunately, I am not particularly happy in doing too much experimenting with a SLABS unit that is fairly pricey should I stuff it.

Even if we could find out what the signals were from the sensor, then we would have a huge head-start.

There are a couple of posts in the D2 section about this, but we cant ever seem to get a definitive answer.

[Graeme]

The D2 SLS sensor signals are compatible with the Llams unit, being a 0-5V analogue voltage signal, so a Llams control unit could learn the height differences. Whereas special interface looms are provided to make the unit plug and play for D3/D4/RRS vehicles, hard-wiring would be required for the D2.

Depending on the cost of a D2 remote fob, it may be cost-effetive to use a Llams controller and switch and I could work out a price without the special loom. However as the D2 situation would be for static use rather than moving over undulations, the Llams controller might be an overkill because a simple voltage divider resistor setup may be useable and switched in and out as required. The controller contributes to more than half the value of the kit which probably makes it too expensive an option.

[David~]

Hi There,
I am ~Rich~'s brother and would like to get the controller for my L322 Range Rover Vogue. Can you help ???
Thank You
David~

[Bushwanderer]

Hi There,
I am ~Rich~'s brother SNIP
David~

You poor bastard!