C5 Exclusive 2.2hdi Screen & Remote Intermittent Fault

[robins3929]

My colour monitor for on board computer sometimes fails to light up when starting the car. Seems to be mainly when it's hot in the vehicle, but not always. Have spoken to original owner & he said this has been a problem since the car was new. The remote for radio also stops working, so volume can't be altered etc, and when switching off ignition the radio stays on.

In the manual it does say that the multi play cd will not work if the interior exceeds a certain temperature. I wonder if this problem could be the result of a fault in the initial set up.

[Ronin]

Sounds like an ISO multiplug is loose behind the stereo head unit and/ or the Function multiplug on the display unit. both easy to check. A slim flat blade screwdriver and a T25 torx bit is that is required.

If you need instructions just ask m8. :rolleyes:

[Guest Nikos]

Sounds like an ISO multiplug is loose behind the stereo head unit and/ or the Function multiplug on the display unit. both easy to check. A slim flat blade screwdriver and a T25 torx bit is that is required.

If you need instructions just ask m8. :unsure:

 

I bought a 2001 C5 exclusive a couple of years back, the V6 with the large display on it... everything worked fine for the first few months, then suddenly I would have the same intermittent problem with the screen and remote not working when starting the car up... it seems as if the screen is powering up (you could see some light on it) but then for some reason fails to start up... the DVD drive on the GPS unit is working and the CD player works, though not through the stalk controls... for the past year this has been a permanent problem and the real issue here is that with the display not working, I can't get the Service/Stop messages from the car's computer when something's wrong!!

 

The idea of some plug moving or some cable going bad sounds right but I've no idea how to check and any Citroen dealer will charge a fair amount for this... can you please provide details for how to check these connections? any help would be much appreciated!