Here’s something not everyone knows. Stop-start won’t operate when reverse gear is selected or a parking aid is active. Having the wheel turned at an acute angle will prevent it working too. The system realises there’s a high chance you’re manoeuvring and will find the engine cutting out every few seconds more than a little irritating. Firstly - Handbrake Faulty, then. Secondly - ESP /ASR System Fault and in both cases the corresponding visual graphics. Also on the application of handbrake switch, it will not auto release when car moves forward, I have to off the ignition and it will then release when car moves forward. Also switching off ignition does not auto apply handbrake. Citroen C4 2011-2016 hatchback Simple steps to followHow its done? What tools to use? What bulb required?10mm spanner - T20 Torx Screwdriver - 10mm Ratchet S Hi I had a simalair problem were by the car on several random occassions would say handbrake failure. and every now and again actually removed the handbrake without been prompted ( i.e. trying to set off or pulling the handbrake switch) took it to dealer and they diagnosed the problem to be the fuse box and replaced it under warranty. touch wood since then it has never done it. Parking brake faulty Hi all, I have a 2014 C4 Grand Picasso, had an ABS sensor fault due to a broken wire, this has been [more ] By retgar2002 On Sun Mar 07 2021, 07:59am 3 7.7K views 3 years ago. All sorts of lights were on my c4 grand picasso dashboard including engine management, service, hand brake fault, ESP, ABS, etc. All because of a faulty Mass Air Electric parking brake (FSE) Position Counter -0007 1/4 R Target force to be applied to the brake cables 0000 Electric motor supply voltage 06.0 Volts Electric parking brake button status Released Remote Controlled Wake-up line status Correct Electric parking brake application speed setting Setting less than 10% Joined: Nov 06 2013. Location: uk barnsley. Hi all. My car is 07 C4GP EGS 1.6HDI. I have a Hill start assist fault/ esp fault that doesn't clear and my local garage cannot find any fault codes. Now I'm no expert but I am assuming that the hill assist must get a signal from a sensor. Having searched ebay and google the results are minimal. DwN0WF.