I've plugged in Lexia, even though at that point it was accepting both the keys, and I can see 4 occurrences of the following fault: Fault (FC83) : Transponder aerial then in the detail it has a slightly different code: Family: Top of column; Fault code: 0C83; occurrences: 4; Local/Remote: Local
also. fault says power steering problem, which it seems to have when turning wheel fast as the steering goes stiff, also says steering wheel rotation speed fault (wtf), brake fluid low (doesnt even have a sensor on bottle). to clear some faults it says if the car has a key start then you must insert key in box under steering wheel (it doesnt
Mine threw an engine fault message with the service light staying on after I parked the car on a slope for a few hours. No issues while driving over 50km home though. Once I got home, shut down the engine and left it for about 5 mins before restarting - engine fault message gone.
This would then disappear on the next few startups only to appear again randomly. Of course this wouldn't ever happen when I was at the dealer so I resorted to a video to prove I wasn't insane! Anyway - it turned out this was a wiring harness fault (known by Citroen) and I believe it gets snagged under one of the seats and triggers a fault.
The MicksGarage.com Experts demonstrates Video showing the correct fitment of shock absorbers to front of: Citroen C4 Picasso (10.06-)Citroen C4 Grand Picass

A big thanks to lancexxx2k off Ebay for providing the diagnostic equipment for this car.Citroen C4 grand picasso suspension failure and investigation.In this

Citroen C4 Grand Picasso Vehicles, Cars Depollution System Faulty. I got that message on starting up,and the little warning symbol on the screen. However the car runs fine,and the message disappeared almost immediately,although the warning symbol remained. I added a bottle of Wynn's DPF cleaner to the tank,and,remembering a tip from my previous 7BJPI.
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    • citroen c4 grand picasso suspension fault message