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Then it is likely that as the car was dropping to the bump-stops, the height sensors registered an illegally low reading (as the reading were being modified by the LLAMS kit) and will now stop the car raising. If you have the 4WD info screen, you would see a red warning bar above the offending wheel(s).Quote:
Originally Posted by daneprocter
In which case you'd need to jack the car, hard reset and inflate.
Cheers,
Gordon
Never have I encountered the need to do other than switch Llams off then recycle the ignition to overcome the situation of the suspension fully extended yet the suspension ecu thinks that the vehicle should raise further.
What were the last few events leading to the vehicle dropping? The first error code posted seems to be missing a number so cannot identify the initial error.
I've never suffered compressor failure as I changed mine out for an AMK long before it became terminal (OCD!). But (absent experience) it seems very odd to me that it would raise the vehicle to an extended height before the work was performed and then refuse to function at the completion of the work (post jump start).
That said, my car has probably done things that are just as strange ... i'm looking at you memory seats ... !
Hmm - am I not understanding what the OP did? I thought it was something like:
* he raised the car to it's maximum height using LLAMS +50 setting
* he worked on the car
* started it (presumably still at the extra height setting)
* something had happened (presumably whilst working on the car) and it dropped to the bump stops.
If that's not (roughly) what happened then obviously my previous posts in this thread are of no use. However, if that was roughly the chain of events (and I've had it happen to me a few times when playing with different rod configurations), then the car dropping to the bump stops from a non-LR extra-height selection may send one or more "sensor out of range" errors (depending on specifically what caused the drop event), which will prevent the car from airing up even after the original fault that caused the car to drop is rectified.
Sometimes a lot of swearing, recyling of the ignition and multiple hard resets may fix the problem, but I've learned that simply raising the car with jacks (under the chassis rails, and after swapping the rods back to standard positions = setting LLAMS back to std heights) works first time.
Cheers,
Gordon
This thread has obviously jinxed my D4. My 12-month-old AMK with the latest suspension ecu software available at the time today dropped the vehicle to the bump-stops after travelling 3 kms, which with old software would only have triggered the normal height only condition from the reservoir pressure rising too slowly. The vehicle had been at +30mm for the 1st 2 kms then back to normal height. There have been no 'rising slowly' messages since the AMK was fitted until now whilst getting back up to normal height. I have yet to read the suspension ecu codes to confirm my suspicion. Anyway now driving with 2 fuses removed and the vehicle getting higher as the day warms-up, but that's OK as it will come down to normal height tonight. I'm hoping to find the dryer clogged when I get time to investigate.
Update: I saw ABS fault U0421 (algorithm based fault from ride control) after the 2nd drop but didn't go on to look for suspension faults. After driving around with the suspension ecu not powered a 2nd ABS fault was logged indicating loss of contact with the ride level ecu - not unexpected. However there are NO suspension ecu faults and the suspenison now behaves properly even after multiple combined LR & Llams raisings and lowerings!
I often feel jinxed by discussion about issues I don't have at the time of the discussion - gearbox being my particular jinx. Oh well c'est la vie. Be interested to hear what happens with your AMK Graeme.
Gordon, that's pretty much it bar the flat battery and jump start. As I said, no experience at deflating vehicle with additional height aids so this is all very interesting and illuminating.
I suspect there will be more to tell.Quote:
Originally Posted by Epic pooh
Gotta love computersQuote:
Originally Posted by Graeme
How did you guys get on with your issues ?
Mine's little hiccup hasn't re-occurred.
I had bumped the gbox into top gear a second or 2 prior to the 1st 50 kph warning and subsequent dropping. I heard the beep and expected a gbox fault msg because I had just up-shifted using my version of paddles although up and down shifting using my paddles has never caused any problems. I don't know if the same sequence occurred the 2nd time but the distance from the last corner and crest was about normal for another bump into top gear but also about the usual elapsed time since the restart for a reservoir filling too slowly fault to occur if the compressor is failing. However I wonder if messed-up canbus messages resulted in an erroneous ABS-stored suspension plausibility fault, considering that the suspension ecu itself did not record any faults.