citroen c4 grand picasso 2015 ex+ 2.0 warning fault

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

c4 grand picasso
Posts: 3
Joined: 12 Jan 2021, 01:45

citroen c4 grand picasso 2015 ex+ 2.0 warning fault

Post by c4 grand picasso »

Hi everyone I'm new to this forum,
i have a citroen c4 grand picasso 2015 ex+ 2.0 bluehdi, recently the car show an orange fault when i start it in the morning( it does show every tim) <engine fault have the vehicle repaired with flashing eco in orange colour. after that it doesn't show for rest of the day.
the eco mode doesn't work when i stop rather it flashes green three times everytime i stop, the battery test shows very good.
any ideas
thank you
Attachments
Screenshot_20210108-183510_Video Player.jpg

Hell Razor5543
NOT Alistair or Simon
Posts: 11080
Joined: 01 Apr 2012, 09:47
x 1183

Re: citroen c4 grand picasso 2015 ex+ 2.0 warning fault

Post by Hell Razor5543 »

Hi, and :welc: to the Forum.

You will need to get the car diagnosed before you do anything further. There could be a whole number of things that could cause this, and without a proper diagnostics it would be impossible to say WHAT the cause of the problem is. A dealership could run a diagnostics for you, but this will cost, and I do not know how much. A generic code reader will probably not work (as the PSA group use proprietary codes), but there are Forum members who have Lexia/DiagBpx clones that can read PSA vehicles, and some of these members may be able to help you with a diagnostics session. The following link shows you who these members are (but some may no longer respond);

viewtopic.php?t=56452

c4 grand picasso
Posts: 3
Joined: 12 Jan 2021, 01:45

Re: citroen c4 grand picasso 2015 ex+ 2.0 warning fault

Post by c4 grand picasso »

Hi, thank you for the reply
i have taken the car to citroen dealer for diagnosis and this is what they say: Carried out checks into engine warning, found faults related to central voltage maintaining device. Need to carry out checks to all earths, batter &amp; connections. If all ok advise softwear download &amp; recheck for further faults. If still present will require a cnentral voltage maintaining ecu.
in my point of view the fault seems not too serious as it shows only when the car is cold.

User avatar
GiveMeABreak
Forum Admin Team
Posts: 22034
Joined: 15 Sep 2015, 19:38
x 2236

Re: citroen c4 grand picasso 2015 ex+ 2.0 warning fault

Post by GiveMeABreak »

What Citroen have stated is correct. There will probably be a specific fault code pointing the Central Voltage Maintaining Device. There is a technical service bulletin for this issue that I have briefly mentioned in my post here:

viewtopic.php?p=671560#p671560