Bought Xantia and have no keypad code

Post by **ekaftan** » 09 Sep 2006, 05:50

I bought a 94 VSX Xantia. Seller has no code for the kepad immobilizer. Car is stuck in 'Neutral' mode and does not ask for code anytime.

Can I disconnect the keypad and forget it? Will it ask for the code sometime
in the future? Will it stop working if the batter is disconnected?

Thanks.

Richard Gallagher · Post by **Richard Gallagher** » 09 Sep 2006, 06:43

Once the engine is running the keypad can be disconnected and left disconnected. The immobiliser won't ask for a code again unless it is reconnected.

There is a company who will 'read' the code logged into the keypad. I can't recall the name of them but you post your keypad (+ fee) to them, they read it and return it.

andmcit · Post by **andmcit** » 09 Sep 2006, 10:28

You can fit any keypad into the car, it doesn't matter
- the code is stored in the ECU...

Sometime in the past the keypad has been neutralised
and you don't need it now even when the battery is disconnected.
If you want to reactivate the code you'll need the original 4 digit code
or an ECU replacement ftom a scrapper with the code known and
seen to be working.

Andrew

Mandrake · Post by **Mandrake** » 09 Sep 2006, 10:53

So if the code is stored in the ECU, how does sending the keypad away to be "read" do any good ?

Regards,
Simon

Post by **ekaftan** » 09 Sep 2006, 11:37

Richard Gallagher wrote:Once the engine is running the keypad can be disconnected and left disconnected. The immobiliser won't ask for a code again unless it is reconnected.

.

This works even if the code is "neutral" mode?

Post by **ekaftan** » 09 Sep 2006, 11:42

andmcit wrote:You can fit any keypad into the car, it doesn't matter
- the code is stored in the ECU...

Sometime in the past the keypad has been neutralised
and you don't need it now even when the battery is disconnected.
If you want to reactivate the code you'll need the original 4 digit code
or an ECU replacement ftom a scrapper with the code known and
seen to be working.

Andrew

Is there any danger that the code will be asked sometime in the future? for example, if I disconnect the keypad and reconnect it? or if my wife (who has another Xantia with a working keypad tries to use her code on my car 3 times?)

The car has had 3 previous owners and I know the last 2, none of which have ever used the keypad ever. First owner is non avaliable for questioning...

thanks.

(I am not in Europe, or I would send the keypad for reading. also, Xantias are not as cheap down here as they are in the uk)

andmcit · Post by **andmcit** » 09 Sep 2006, 11:53

Mandrake wrote:So if the code is stored in the ECU, how does sending the keypad away to be "read" do any good ?

Regards,
Simon

Frankly, I doubt it will. I've used the SAME keypad with a series of different
ECU's and their known codes to check they worked properly on an Xm and
a Xantia, so don't think the keypad has any influence. I've got a few keypad
Xantiae that NEVER need a code inputting into them EVEN after the battery
has been disconnected and reconnected a good while later.

I'm guessing the car which is the topic of this thread is a 2.0i VSX petrol?

Andrew

Post by **ekaftan** » 09 Sep 2006, 12:03

andmcit wrote:
I'm guessing the car which is the topic of this thread is a 2.0i VSX petrol?

Andrew

Yes. 1994 (orga 6471) 2.0i VSX petrol automatic.

No diesel Xantias where I live...

andmcit · Post by **andmcit** » 09 Sep 2006, 12:09

Thought just struck me. I had the rubberised fronts of the keypad wear off
my TD 1.9 Xantia thus giving anyone a reasonable clue as to which numbers
to press so I bought another from a Peugeot in my local scrapyard and
plugged it in and it all works fine with the correct original code!!

As I said, it's the ECU that matters, and there's plenty being scrapped
around ebay etc here at the moment.

Andrew

Post by **ekaftan** » 09 Sep 2006, 12:16

andmcit wrote: As I said, it's the ECU that matters, and there's plenty being scrapped
around ebay etc here at the moment.

Andrew

Thanks. Will look around for one that can be shipped overseas... (I am in SouthAmerica)

andmcit · Post by **andmcit** » 09 Sep 2006, 12:18

ekaftan wrote:
andmcit wrote:
I'm guessing the car which is the topic of this thread is a 2.0i VSX petrol?

Andrew
Yes. 1994 (orga 6471) 2.0i VSX petrol automatic.

No diesel Xantias where I live...

In truth there isn't really anything to worry about. I'm sure some time
through the last two owners' use the battery has beeen reconnected and
still the car starts immediately without a code being inputted - I've got a
very early 1993 VSX 16v which has had it's battery in/out a few times
now, and whilst the light may be red as the ignition is switched on the
light immediately goes to green when the ignition starter is turned
allowing the car to start!

No worries here!!

Andrew

andmcit · Post by **andmcit** » 09 Sep 2006, 12:21

ekaftan wrote:
andmcit wrote: As I said, it's the ECU that matters, and there's plenty being scrapped
around ebay etc here at the moment.

Andrew
Thanks. Will look around for one that can be shipped overseas... (I am in SouthAmerica)

I'm happy to keep an eye out for you, I'm always on ebay/visiting breakers here.

Andrew

Post by **ekaftan** » 09 Sep 2006, 12:25

andmcit wrote: I'm happy to keep an eye out for you, I'm always on ebay/visiting breakers
here.

Andrew

Thank you!

wheeler · Post by **wheeler** » 09 Sep 2006, 12:39

Mandrake wrote:So if the code is stored in the ECU, how does sending the keypad away to be "read" do any good ?

Regards,
Simon

The code is stored in the injection ECU but i believe that when the keypad is interogated it can tell you the last code that sucessfuly unlocked it.

andmcit · Post by **andmcit** » 09 Sep 2006, 13:31

Must say, I didn't think it would be possible for the keypad to leave
electrical footprints for the unlock code - seems a bad design to me!!

Guess when I think about it - in the remade 'Gone in 60 Seconds' doesn't
someone actually show the code being downloaded from the cars's kypad?

Andrew