Xantia key lost - new key doesn't start car.

Unread post by **aerodynamica** » 25 Sep 2010, 19:03

A friend of a friend lost the ignition key to a Xantia 1.8 petrol. I think he has got one from a dealer but it will not allow the engine to start.

I think the starter turns over but perhaps the ignition needs a signal from the transponder in the key?

How can you get around this?

Any help greatly received!

Graeme

Unread post by **CitroJim** » 25 Sep 2010, 19:09

Hi Graeme,

If it's a MK2 then the key needs the transponder chip and this needs programming. For this you'll need the PIN number that came with the car and a Lexia.

Does the immobiliser light in the tacho go off when you switch on the ignition and try a start?

If you don't have the PIN (it comes on a credit card) then you'll have to get it from a dealer after giving the car's VIN and proof of ownership.

It can get expensive.
No real way to bypass the immobiliser on a MK2.

This does not apply to a MK1.

Unread post by **aerodynamica** » 26 Sep 2010, 16:37

Cheers Jim, I'll look into it. I don't know if I can get a Lexia though - might be able to source one.

All depends on if the PIN is with the car!

Unread post by **myglaren** » 26 Sep 2010, 16:46

For someone to do a Lexia diagnostic and reprogram your keys, look here.

You are quite fortunate in having two close at hand

Unread post by **aerodynamica** » 26 Sep 2010, 17:10

Ah thanks - DHallworth in Glasgow! I am certain I've chatted with him before as I recognise the name.

Well I only hope this PIN number is available.

Unread post by **DHallworth** » 26 Sep 2010, 21:38

If you can get the PIN code then feel free to give me a shout.

I'd probably need someone from here who has used the Lexia before to give me a heads up on how to do it though!

David.

citronut · Unread post by **citronut** » 26 Sep 2010, 22:53

yep Dave
you go into the learning section on the LEXIA, i cant remember exactly were you find it , but its in there somewere

regards malcolm

Unread post by **CitroJim** » 27 Sep 2010, 12:23

citronut wrote:yep Dave
but its in there somewere

I think you'll find it in the Replacement Parts menu, the same place as where you go to flash an ECU.

Unread post by **citroenxm** » 27 Sep 2010, 12:42

No, I dont think its in there Jim, but even though Ive done it on a HDi im not 100% certain...

I know its called "LEarning" or "Key Learning". The on screen instrctions are reletivily clear..

I managed to add a PLIP for Locking the car with the Lexia, but didn't get as far as getting it to start the car...

Paul

citronut · Unread post by **citronut** » 27 Sep 2010, 12:42

ooooh FLASHING!!!!!!!! E C U Jimmy

regards malcolm

Unread post by **CitroJim** » 27 Sep 2010, 12:52

citronut wrote:ooooh FLASHING!!!!!!!! E C U Jimmy

I just knew that would elicit a comment from you Malcolm

Paul, thanks. I'll have to go and fire up and find it. Got me all curious now...