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2015 Grand C4 Picasso - Electric problems when starting
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Author Post
miguel-picasso   
Mon Oct 03 2022, 09:36am
Member No: #60147
Joined: Oct 03 2022
Location: Dublin
 Hello,

I have some problems with my C4 Grand Picasso (2015). I have tried to google similar behaviours, with no success.


When opening the car with the remote, the mirrors will not unfold. But the car unlocks and the screen turns on correctly and displays no error.
Then, when inserting the key in the reader and pressing the start button, nothing happens.
If I keep insisting, it will eventually start. I think if the driver door is open, it takes less time than if it is closed.
Once it starts, the mirrors will unfold immediately, it will show a quick battery error, a quick front fog-lights error, then all errors will quickly disappear and everything will work correctly.

This happens always, if the car engine is stopped for more than 1 hour.

The battery is quite new: 10 months old, it is charged and alternator is charging. Start-stop is working fine.

I have tried to reset the BSI unit following a procedure read in this forum... Not worked, although not sure if the reset works correctly or not (is there any way to know this?).

I have tried to punch the fuse boxes and cables. Also insult them didn't seem to make a difference.
I have connected my cheap ODBI code reader, but there is never a single error.

I am a bit desperate with this issue, happy to try any suggestion.
neilp   
Mon Oct 03 2022, 10:01am
Member No: #3384
Joined: Apr 21 2008
Location: Bulwell, Nottingham
 Although I don't think it will make a difference have you changed the fob battery?
miguel-picasso   
Mon Oct 03 2022, 10:49am
Member No: #60147
Joined: Oct 03 2022
Location: Dublin
neilp wrote ...

Although I don't think it will make a difference have you changed the fob battery?


I though about it, and checked with the 2 different fobs, getting the same behaviour.
Ap0qalypto   
Mon Oct 03 2022, 01:10pm
Member No: #52161
Joined: Sep 21 2018
Location: Republic of Serbia
 I would disconnect car battery for 10 minutes. Never had success with BSI reset. But disconnecting battery did gave some results.
miguel-picasso   
Mon Oct 03 2022, 05:33pm
Member No: #60147
Joined: Oct 03 2022
Location: Dublin
 Thanks for the suggestion. I have disconnected the battery and will try again tomorrow. I am a bit frustrated with this issue
 

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