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Right, the short answer is this: Looking at the pin in question on the SLABS ECU, here's what you see in 'idle' condition, ignition at position 2: (It's a 50% duty cycle, 25Hz 12volt square wave as expected). The arduino (as expected) cannot manage to trigger any exciting behaviour...

It's not a bad way that it was conceived, but if only they had used sensible connectors on the block and sensible pipe routing, then it would be fun! I want to find the guy who tapped the ACE block for conventional hydraulic fittings. I could use that done to mine, the front pipes are held...

I don't THINK so, as the non-ace disco has an idler pulley fitted instead. But a definitive answer should be along shortly ;-)

So, it's not really a disco 3 then, is it? It'll be a Disco 1 300TDI...!

Havent had the time yet... Hopefully this weekend I'll connect it up and see what happens!

It's RF and works like a key fob in that its coded to the bcu. Life would be far too easy otherwise ;-)

Probably going to be next weekend before I do, because I am away from home this week and I had some grief last week getting the air susp off the bump stops in the cold after everything had been jacked up (comp duty cycle exceeded...!) Last thing I need is to break the car here so I can't drive...

FWIW, here's the code for the arduino to generate the SLS signals.

Oops, just reread my post. Meant square wave, not sine wave, obviously!

The three piccys attached show the PIC generating a 25Hz sine wave with 50%, 25% and 75% duty cycles. With a bit of luck, this should make the SLABS ecu send the air suspension up and down. I will have a look and see if the SLABS pin has a 50% cycle 25hz wave on it to begin with, and if so, I...

It's a bulb, you will need a couple of credit cards cut up to persuade the clock unit to pop out. Have a look around, you'll find instructions :-)

Sure :-) FWIW, the solution will involve an Arduino :-)

Hi Sierrafery - that is just the information I need. I can easily generate a 25Hz square wave, and use pulse width modulation. What I think I will do is put a switch on the rear body panel by where I put my trailer socket so I can press up/down when hitching up. I'll update with what I...

Hi guys, I am trying to see if it is possible to wire in a SLS raise/lower switch for my Disco 2. I don't want the expense/hassle of a wireless remote, so am looking to see if I can wire something in. I know I could do something dirty direct to compressor/valves, but the nicer way would be...

Thanks again guys! I will look myself online next time!

Hi guys, Quick parts query if you could help! Are the front ARB drop links on a discovery2 the same, regardless of whether you have ACE or conventional ARBs? I'm assuming SLS doesnt make a difference to the front ARB drop links! Cheers, David

Hi guys, I have a 2001 td5 disco with SLS and ACE. I have just bought some new standard terrafirma shocks for all round and I want some new front springs too. However I don't want any lift, happy with the stock suspension height. Any suggestions about what springs would do this nicely at a...

I hope not! My selector doesn't have the diff lock option, whether it's actually present on the txfer box or not I don't know as I've never looked. The light certainly ISNT on on the dash...!

Aye, that makes a bit of a difference, but even on the correct pressures the squealing continues :-( I did wonder whether new front shocks/springs might do it... Another thought was radius arm bushes at the front, but I'm not entirely sure and would rather get it right the first time than...

Hi guys, I'm after a bit of help :-) My TD5 Disco makes skidding noises on going round corners, either direction. The handling doesn't seem too bad, and it isn't related to acceleration. Even going round corners at a relatively sensible speed makes it sound like a boyracer skidding...