Ok. So something different today. Running live data on the snap on still but maybe getting somewhere. Dropped pressure out of the reservoir, the compressor actually stayed on for a minute or 2 instead of the usual few seconds but as soon as it hits 4.3bar it shuts off. Would I be right in thinking the sensor on the actual reservoir is faulty? Checked levellers this morning and all seem fine. Unplugged them one at a time and each produced fault codes when unplugged.
 
I only know the P38 but sounds like you have leaky airbags or lines to the back bags
 
It's all in the later RAVE docs pages 230-258. Here's the diagram & legend.
upload_2021-11-6_15-26-37.png



upload_2021-11-6_15-26-52.png
 
I did create a PDF of the relevant section, but it ended up as 21MB and will not upload !!
 
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