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Car Forum / Peugeot Cars / July 2006

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Immobiliser keypad removal?

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John - 16 Jul 2006 10:13 GMT
Have an S-reg 406 I'm unable to start due to a faulty immobiliser -- assumed
broken lead(s) to the keypad (it has a flashing red light and will not accept
any input; doesn't even give an audio response to the keys being tapped).  I
can't see how to access the back of the keypad to examine the wiring.  I assume
it's possible to lift it off its cradle somehow?  If I can woggle the wires
around to get a one-off connection I want to then disconnect the thing.  TIA,  
J
Darren & Sally - 16 Jul 2006 10:24 GMT
the keypad is usually linked in with the ECU, not sure how to get round it.

> Have an S-reg 406 I'm unable to start due to a faulty immobiliser --  
> assumed
[quoted text clipped - 9 lines]
> TIA,
> J
Bob Minchin - 16 Jul 2006 20:22 GMT
> the keypad is usually linked in with the ECU, not sure how to get round it.
>
[quoted text clipped - 11 lines]
> > TIA,
> > J

The only safe way I know of to remove the keypad is to start the engine and
then disconnect it with the engine running. This logs a fault in the ECU but
it no longer expects to see the keypad. I'm told by a Pug master tech that
if it is removed before starting the engine the ecu will lockout and never
start again.
Because of the severity of the possible outcome I've not unplugged the
keypad in my Pug with the engine off.

hth

Bob
John - 16 Jul 2006 21:20 GMT
>> the keypad is usually linked in with the ECU, not sure how to get round
>it.
[quoted text clipped - 25 lines]
>
>Bob

Yes, I know. That's why I want to get at the wires behind the keypad and try
get a one-off connection so that I can start the car before disconnecting
it. But I can't see how to, hence my request for help.
Bob Minchin - 18 Jul 2006 21:48 GMT
> >> the keypad is usually linked in with the ECU, not sure how to get round
> >it.
[quoted text clipped - 29 lines]
> get a one-off connection so that I can start the car before disconnecting
> it. But I can't see how to, hence my request for help.

Sorry I mis-interpreted your question.

When I took my keypad out it was just a matter of pulling off the connector
from the back of the pad. I did it years ago and don't recall anything
difficult. I think it just unclipped from under the armrest and has left me
with a useful pocket to put my phone and a pack of polos in.

Bob
Mindwipe - 28 Jul 2006 22:17 GMT
>> >> the keypad is usually linked in with the ECU, not sure how to get
>> >> round
[quoted text clipped - 51 lines]
>
> Bob

just pull the thing out of its clips
dont be a wuss
Best thing to do on a 406 is programme the keypad to the key (in the
handbook)
then you dont have to use it anymore
 
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