Re: 2009 Grand Picasso wont lock. by Hell Razor5543 » Fri Sep 13, 2019 7:46 am. It suggests to me that one (or more) door locks are not reporting their status to the system (whether they are locked or not). This can be down to a number of reasons, including failed wiring (I had this happen on a Xantia; the wiring in the door concertina tubing3) RF unit for the remote locking seems to be dead. 4) Cruise control wont set (permanent fault) 5) Radiator fan doesn't engage before engine too hot warning although can turn it on in Lexia. 6) P0409. 7) P0489. 8) P1162. All the codes seem to point to low voltage to the EGR.
Thu Jul 19 2018, 01:11pm. Member No: #51650. Joined: Jul 16 2018. Location: Darlington. Hi ive got a rear pneumatic suspension problem, I’ve changed both the air bags and so now it doesn’t sink but 3 months down the line “suspension faulty” and the pump won’t kick in at all. Lexia says fault code c1629 air compressor relay open circuit.