Electrical Problems...

[MadStu]

Hi all,

I have a Citroën C5 2001 3L Exclusiv

 

I haven't used it for a couple of weeks and when I tried the remote key didn't work. So unlocked it with metal key and alarm went off etc.

 

Anyway, then I couldn't start the car, it was coming up with some security type warning in the box, then after a few tries it's gone into energy saving mode.

 

So I took battery out and charged it up, put back in and followed bsi reset procedure but still only comes up with energy saving mode and engine turns over but won't start.

 

I only have 1 key.

 

Is there anything I can do?

 

Thanks :)

Stu

Edited October 25, 2014 by MadStu

[Johndouglas]

When you did the BSI reset did you hold the lock button down for a while?

[MadStu]

Hi, yes I did but it didn't make a difference. Tried it also without holding it down as stated in the "pinned" bsi reset topic in this forum.

 

Cheers

[paul.h]

The economy mode will go once the engine is running and is just a Citroen thing that stops some electrical things working such as the radio to prevent the battery being flattened, so no need to worry about this.

 

It sounds as if the remote key may need a new battery for the remote part to work or for it to be re-initialised as covered in the handbook following its battery replacement. However, it also sounds as if the key immobiliser chip is not being recognised - this could be a fault with the chip, the aerial transponder that is located around the igntion switch or some other part of the immobiliser system.  A transponder is about £5 but ideally the car needs a Citroen dealer diagnostic check to find out what is wrong. There is a current C4 topic of a car not starting that may seem to be similar but the owner has not used a Citroen dealer for any checks, has tried a new transponder and also second hand key/ecu but it is still not sorted. From the lessons being learnt there, I would try a new remote battery, re-initialise it in the ignition and if it still does not work then use a Citroen dealer to find the fault. It may be nothing to do with the immobiliser system though and could be something such as a fuel pump or crankshaft position sensor or ignition coil.

[MadStu]

Thanks Paul, I've tried reinitialising the key using instructions provided but with no luck. Where would I buy a transponder from? The car isn't moving anywhere obviously so can't take it to a dealer without paying someone, so I'll try the £5 replacement transponder first.

 

Cheers

Stu

[MadStu]

Is it possible to get a non remote key cut with transponder (I have the ignition key number). Was thinking of getting this just to be sure it's nothing to do with the key and it's little circuit board and battery being damaged. Edited October 26, 2014 by MadStu

[Johndouglas]

Where would I buy a transponder from?

The transponder in my Saxo has occasionally played up over the years, but eventually it became a non-starter. A Citroen dealer ordered me one which cost around a tenner. It took less than an hour to swop over.

[paul.h]

For a new key with the built in immobiliser chip you would need to go to the Citroen dealer or maybe somebody on the internet who could provide one if you give them your car details. A dealer normally can get parts in 24 hours but a new key would take longer since it would need to be correct for your locks/immobiliser.

[madmadmax]

stu where are you as i can pop round if you are local to me and plug it in to my lexia

 

if you get a new transponder chip it will need coading so you should try recoading you current one first

 

the reacoding needs lexia and your imobiliser key code that is a credit card sized plactic card should be with your documents if you have it other wise you can get it from the deler or there is a site on line that can do them from the vin

 

if you pop the key apart there will be a small black box in one corner you get the numbers from that and go to ebay or just google and you will fined or you could go to the dealer

 

the circuit board is all to do with the central locking not the imoblizer

[MadStu]

Thanks for the advice everyone.

 

madmadmax I live on the south coast in Seaford.

 

 

Cheers :)