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Car Forum / Peugeot Cars / January 2006

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Immobiliser Issue 406

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Rigel - 14 Apr 2005 21:13 GMT
Hi;

I recently bought a 406 GLX 2.0 petrol from an auction. The thing is that
the previous owners made it so that the High frequency key fob (the one
with two buttons) deactivated the immobiliser which is fine for now. What
concerns me is that I don't actually have the code to type in manually, so,
if I need to disconnect the battery or the key fob battery goes I will be
stuck.

I have tried to get the number of the sellers from the auction but
obviously for confidentiality they won't give it me. I have also tried
directory enquiries using the name and address on the V5 but they are ex-
directory. I thought I had cracked it using the service history and old
warranty document which had their phone number on but it wasn't recognised.
Basically I have tried everything to get in touch. (I include this so as
not to waste peoples time telling me to get in touch with the previous
onwer).

Is their any way of resetting the immobiliser with a new code once the
immobiliser is deactivated or without entering the old code? Or am I going
to have to bite the bullet and go to Pug before its to late?

Thanks
Lee Power - 15 Apr 2005 18:01 GMT
Hi

This place offers code extraction for Peugeot / Citroen keypads.

http://www.unimark.freeserve.co.uk/index.htm

Or you Peugeot dealer can reset the code to 1111 with there diagnostic
machine.
mindwipe - 15 Apr 2005 18:09 GMT
> Hi
>
> Or you Peugeot dealer can reset the code to 1111 with there diagnostic
> machine.

no they cant!
Lee Power - 15 Apr 2005 18:26 GMT
Yes they can, Plug it in to the CORRECT Peugeot diagnostic machine & it can
be reset.

The only time they CANT reset the code is when the keypad immobiliser has
totally locked up because somebody has tried too many incorrect codes.

There is another way of resetting keypads, But its NOT for a public forum!
mindwipe - 15 Apr 2005 20:52 GMT
> Yes they can, Plug it in to the CORRECT Peugeot diagnostic machine & it
> can
[quoted text clipped - 4 lines]
>
> There is another way of resetting keypads, But its NOT for a public forum!

correct machine?
think you have been misinformed
but not gonna argue the point
cos just cant be bothered
End
Chris Brayshay - 16 Apr 2005 13:41 GMT
Thanks very much;

That website is useful. I spent Friday phoning up the garage which was on
the service history invoice, a peugeot dealer they guided me to, and the
original dealer in London who sold the car. If I needed the radio code it
would have been perfect because they all gave me that!

However, none could give me the code for the immobiliser. What was
interesting though was that they all gave me completely different answers
to my questions. They were all extremely helpful it has to be said, but the
answers ranged from needing a new keypad at £149 + VAt and then
reprogramming (another £60) to needing a complete ECU at £600!! they all
said that they could not find out the code if it had been changed from the
factory setting, as the only person who knew this was the last owner. But
one dealer said that could override the system using the diagnostics
machine (not find the code but just switch the whole thing off?) But the
other dealer said they could override the system only by removing the whole
thing manually which would take 2.5 hours at £80 an hour.  

This left me somewhat confused. What I really don't understand is that it
is just a circuit board carrying a signal like any keypad and if companies
like the one you posted on your thread exist why can't peugeot just plug
into the back of the keypad or ECU and let the machine read the code
without the need for all the fuss, they must get phone calls all the time
about the things especially looking at other threads on the topic.

Anyway, thanks very much, the good news is that I had written to the
previous owner as a last resort not even knowing if it was the correct
address. Well, this morning I got a phonecall from the owner who told me
the code!!
Lee Power - 16 Apr 2005 13:51 GMT
Hi

Great news that you finally have the keypad code, Now you can change it,
Use the service mode & turn the auto unlocking of the keypad by the remote
plips on & off.
Chris Brayshay - 17 Apr 2005 10:55 GMT
Thanks for your help. Much Appreciated
Steven - 18 Apr 2005 00:42 GMT
hi
I have a 406 and the keypad is on 1111
is there anything I can do to
a) change the code and
b) get the immobiliser to go on/off with remote plips

thanks

> Hi
>
[quoted text clipped - 4 lines]
> Or you Peugeot dealer can reset the code to 1111 with there diagnostic
> machine.
Lee Power - 18 Apr 2005 07:39 GMT
Hi

To change to code follow these steps, Do these slowly, Dont rush.

Igntion on but dont start the engine.

Enter the old code & then press "C"

Enter a NEW 4 digit code & press "C" again.

4 Green flashes from the keypad & 4 beeps means the new codes accepted.

BUT: The keypad will for safety reasons remember BOTH codes untill the NEXT
time the keypad is used.

Next time you go to start the car enter the code you wish to KEEP & the
other code is erased out the memory.

To get the keyfobs to unlock the keypad for one minute follow these steps.
If you dont have TWO keyfobs, Where it says press the second fob, Use the
first one again.

Enter the 4 digit code on the key pad & then within 10 seconds press C C

Press the large button on the first remote ( 3 beeps )

Press the large button on the second remote ( 4 beeps )

Press C C again ( 5 beeps )

Lock the car with the remote, Unlock the car, Enter the 4 digit keypad code
& then press C 1 C.

Next time you unlock with the remote the keypad should be unlocked for one
minute only.

To switch this feature off enter the code & then C 0 C, To turn it back on
enter the code & then C 1 C
Lee Power - 18 Apr 2005 17:55 GMT
Hi

I forgot to say, If you have the very early infra red type keys then you
need to point the remote at the receiver in the roof consul.
Just pop the key blade out from the remote fob & use some pliers to turn it
in the ignition.
If you have RF keyfobs you obviously dont need to aim the remote anywhere.

Also if you have a GLX, SRI or Executive on a N, P or early R plate then it
also has a total closure feature built in.

Open all 4 electric windows, Deadlock the car with the remote, Big button
first then within 3 seconds the small button & watch the windows shut
themselves.
Ben - 19 Apr 2005 22:10 GMT
> To get the keyfobs to unlock the keypad for one minute follow these steps.
> If you dont have TWO keyfobs, Where it says press the second fob, Use the
[quoted text clipped - 14 lines]
> Next time you unlock with the remote the keypad should be unlocked for one
> minute only.

Is there any reason why the above might not work? I've tried it many times
and although each step is confirmed with the right number of beeps, I still
need the code every time :(

Ben.
Lee Power - 20 Apr 2005 17:47 GMT
Hi

After setting the key fobs up, You have turned the feature on?

Enter 4 digit keypad code & then C 1 C?
brian h - 29 Jan 2006 23:46 GMT
hi i have a pug 406 20L exec turbo i have got a primary remote key that works
but needed a spare so bought a secondary key off ebay tried programming in
but doesnt  work can u help

>Hi
>
[quoted text clipped - 34 lines]
>To switch this feature off enter the code & then C 0 C, To turn it back on
>enter the code & then C 1 C
 
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