Citroen C4 Grand Picasso garage worked on the car but could not fix the fault referred me to local citroen dealer. only charged me for one and a half hours work and the diagnostic. Kilgannon Motors Ltd Gearbox wouldn't select gears properly or pull way and i got the warning "Gearbox Fault" on the dashboard, then it wouldn't start. Got it towed to mechanics where it started again but you could hear the gear selector trying to change and the dispaly was switching between 1st/2nd gear. So far the Fault codes coming up are: P1351 P0896 P0919 P0925 2010 C4 Grande Picasso gearbox fault By Alan Sheard, August 18, 2023. 0 replies; 100 views; Alan Sheard Citroen grand c4 picasso 64 plate warning lights Hi, I've got a C4 Picasso 1.6 HDi BMP 2008. Every time I power it up it displays "PARKING BRAKE FAULTY" and after a while "ESP / ASR FAULTY". Still everything works except for the automatic parking brake application and the service light is illuminated. I filled all the tires but the fault recurred. Second time - they took the car into a non-Citroen garage who checked it out and changed the gearbox oil and declared victory - alas prematurely - fault occurred exactly as before. Third time - Citroen dealer had a look, couldn't see anything wrong, updated the software and sent it back. Hello all, I have only just bought a CITROEN C4 SX 1.6 auto. While driving my car in 3rd it changes to 4th dries fine for a little while then it changes to limp mode which is 3rd gear. Citroen Penzance carried out diagnostic tests to the gearbox, it showed fault code p0006 pressure regulation reading permanent fault in BVA-AL4 auto box. Citroen ECU Testing, Repair and Exchange Models. Actuator (Gear Selector) Dashboard Instrument Cluster Power Steering (EPS - Electric Power C4 PICASSO. ABS Around 12 months ago I had my gearbox reconditioned and my actuator changed. Everything has been going fine until now, when I have started having problems with my gearbox again. One minute it would be fine next minute it's stuck in 1st gear, then it's fine again then I get gearbox fault and nothing works. FsMOsG.