EAS fuses out, door open, car dropped

[WhiteD3]

Just fitting my GOE rods to the D4 this morning in prep for a trip to Fraser.

Had the two EAS ECU fuses pulled, drivers side door open and a block under the chassis rail. Did the job and as soon as I put the fuses in, the suspension dropped. The driver's door was open.

I thought that the door open prevented operation of the EAS?

[bbyer]

I think the door open and no suspension drop inhibit feature works only on the Queens Land Rovers; the commoners for the most part often seem to experience something different - that has been my experience anyway.

The do not drop software firstly only functions when all is working well and normal. I do not think changing the rods qualifies as normal. As such, I complement you on recognizing that and having the block underneath.

On the Queen's Land Rovers, the auto levelling feature and the actual up down is supposed to be inhibited or stop when a door is opened. This occurs only under what I call ideal conditions and what LR would call normal. In this case, normal means footmen are present in addition to the drivers.

[Graeme]

Auto levelling is specifically not inhibited just because a door is open. It re-levels to cater for weight being reduced or added. Only height change selections (eg normal to access) are inhibited with a door open.

[WhiteD3]

It dropped from off road to normal height, not just a levelling fart.

[bbyer]

I got my education a few years back when just after getting out and shutting a door, it fell for no apparent reason from normal to the stops.

I say "fell" as it took less than a second - more like a fraction of a second - sure looks low that way. It did occur to me that I could have been under it rather than as it was, just walking away.

I replaced my 3 ton axle stands with 6 ton after that - wider base, hence more stable.

[Graeme]

Did it show a suspension fault and possibly with a 'normal height only' message?

Edit: Hang on, you had removed the fuses so how would it know that it had been at off-road height? It was reasonable to expect that it would level at normal height.

[WhiteD3]

Hang on, you had removed the fuses so how would it know that it had been at off-road height?

I put it in off road height to fit the rods.

I'm sure the door open bit worked in the D3..............

[roamer]

I think if you select off road height and open door before it gets there, it won't move, even with fuses in.

Cheers Ken

[Graeme]

That's right, it wont level during an interrupted height change providing the fuses aren't pulled.

[gghaggis]

Quick post - outside Ceduna tonight, on the way to Melbourne!

The "open door" trick only works to prevent selected height changes, ie those you have initiated via the switch. It can be a useful trick to "freeze" the car at an intermediate height.

If there is a fault, or air discharge due to some other reason, an open door won't prevent the car from dropping. However, it will normally add a small delay before the car drops.

If you've set the car to offroad height and removed the appropriate fuses or disconnect the battery, the car should be disabled at that height - from memory, there are 2 fuses + a relay and a relay/fuse (just to be sure).

If you have a block or jack under the chassis, it shouldn't matter either way.

Cheers,

Gordon

[Graeme]

The suspension ecu gets its main power from the 20A engine bay fuse which is required to operate the air valves and exhaust pilot valve. If this is removed with the ignition off then the ecu looses the current height status.

The ecu will use power from the passenger compartment ignition-on suspension 5A fuse to at least issue the '50 kph only' error message if the 20A fuse is removed but cannot be used to operate any valves. The engine bay relay is only to run the compressor and the 5A engine bay fuse is only to protect wiring on the 'compressor relay contact closed' feed-back circuit.