DTC: B173D, Fault in identifying the mechanical/electronic key or the remote control present in the reader DTC: B181A, Fault in the response from the electric steering lock to the request for locking/unlocking DTC: B1808,Fault in the unlocking of the immobiliser by the engine management ECU DTC: B1624,Central power switch positive supply relay Here are the two different situations and the main causes of an engine light on Citroen Grand C4 Picasso . Engine light on fixed on Citroen Grand C4 Picasso: In the first case, if your engine light stays on, it is beneficial to go fairly quickly to your mechanic so that he can complete your vehicle to the diagnostic case in order to have more Hi. I have a Citroen C4 Picasso 1.6vti. I've got the same problem with the ESP/parking brake. It also has another problem. It's always blowing a 15 amp fuse in the engine bay fusebox. I've tested it with diagbox, and have the same u1208 fault code, but the engine has no fault codes. Naskočila však již jen hláška "Engine fault: Repair needed" a rosvítila se už jen kontrolka "Systém autodiagnostiky motoru", což jsem natočil na přiložené video. Opatrně jsem dojel domů (cca. 5 km) a auto nechal oddychnout (cca. 3 hod) a šel zkusit, zda se náhodou nějak nevzpamatovalo. Check the battery, if it is flat Citroens seem to give a ESP/ASR fault. Before starting the engine it ought to be 12.7 volts, if much lower it needs charging. Once running it should be about 14.4 volts, if not the alternator might be faulty unless you have a smart alternator which varies the voltage depending on demand but with the lights on 4 days ago · If you experience any of these problems with your Citroen C4's 1.6-liter diesel engine, it's important to have them addressed promptly to avoid more serious issues. 3.2 1.2-liter Gasoline Engine The Citroen C4 is equipped with a 1.2-liter gasoline engine that is popular for its fuel efficiency and low emissions. I have a citroen 2007 c4 picasso grand. After 1 year I got it, a fault U1208 appeared. And after 4 days it appeared faulty handbrake, esp and service. The first thing I checked was the battery and it's ok. I went to the garage with a maxisys diagnostic tool where he tried to delete the fault but it came up again.We checked the four sensors on Hello everybody, This morning on the way to work, my C4 Grand Picasso 1.6 hDi (year 2009) saddenly went to Limp Mode and cut-out the engine. It also showed a message on the dash: 'Engine Faulty:Repair needed'. b4vvCy.