The check engine light can alert you about some failures but not all of them. It will depend on how complex the electronic control unit of your Citroën is. To properly diagnose the failure of your Citroën, it is important to have a suitable scanner that is compatible with the brand and model of your car. The scanner will show the engine fault ECU Repairs Cost by Citroen Model. Citroen Model. Average Price. Get Quotes. Citroen C4 Picasso. £317.31. Compare Quotes. This table uses data from quotes provided on WhoCanFixMyCar.com between 21/09/2023 and 20/12/2023. Jan 8, 2015 · Wed Jan 07 2015, 01:29pm. Member No: #34598. Joined: Mar 07 2014. Location: Somerset. Hi all today on the way home the car beeped with "handbrake faulty" & "EPS/ABS faulty" I was sat in traffic when this happened when I got home I plugged it into my code reader which gave this code P1459. C4GP 1.6HDi 75k the car has not been affected driving I know that this has been covered elsewhere but my problem seems to be a bit different. The rear suspension on my C4GP goes down overnight. This only seems to happen when it is at the normal ride height. The only warning message I get is the 5mph one when I start the car. The compressor will kick in and inflate the suspension. Wed Sep 26 2012, 04:17am. Member No: #14515. Joined: Jul 09 2010. Location: Australia. My car has a new fault. When running for the first time in the morning, some days (not every time) it misfires (the same as a petrol engine when the spark plug misses). You can reduce the problem by being very gentle with the throttle. This indicator is typically only used for performance Citroën C4 models that expect the driver to push them hard. The cause behind this could be heavy acceleration or in worst cases a loss of oil. As it is a red light you must pull over and allow the engine to cool down. If it persists then seek help from a mechanic. Aadam1975. Sat Dec 31 2016, 09:22am. Member No: #47146. Joined: Dec 31 2016. Location: Slough. Dash showing intermittent fault with handbrake, ABS, ESP /ASR and then a gearbox fault. Handbrake does not release, when pressing the brake pedal and release switch on dasboard (though it releases when given gas). Seems to be happening more and more Joined: Aug 07 2006. Location: Northumberland. @aburcay - it's highly likely that the air bags have failed and if left for to long leaking, the compressor works too hard and burns out. The ECU failing is rare as is the ride height sensor which can cause issues with the suspension not raising. Dec 15, 2015 · I know this has been asked before but I am hoping that maybe someone may have some idea as to why my Citroen C4 Grand Picasso VTR+ 1.6HDi has suddenly decided it wants to drive like a 1 litre engine with no power. I have tried disconnecting each sensor under the bonnet one at a time and has made no difference at all. Feb 6, 2013 · The only fault code that the ESP has is "ESP8.1 No communications with the engine management ECU Data invalid - Temporary - U1208". It always shows up immediately even if erased with Lexia. It happens even with "key on engine off" so I guess it is not a matter of voltage dip during cranking. I have reset the BSI several times to no avail. Mj63.