A friend has an N reg Laguna. It worked fine for a while then refused to 
start - and now the battery is flat as well.

Reading up on it I see there were numerous problems with the immobiliser.

Anybody know a way of disabling/bypassing/resyncing the immobiliser to get 
it going again?

I've found a google text-only cache of a PDF file (original long gone off 
the web...) that says how to resync lots of cars systems, but it only covers 
the Laguna II (Keycard) version.

Apparently there is a procedure you can use involving the accelerator pedal 
and a button on the steering column to enter the immobiliser code, but I 
can't find any details.

Any suggestions? (Apart from 'scrap it' which I've already tried on him...)

"PC Paul"  wrote in message 
news:AheEe.24754$yP3.16265@fe1.news.blueyonder.co.uk...

>A friend has an N reg Laguna. It worked fine for a while then refused to 
>start - and now the battery is flat as well.
>
> Reading up on it I see there were numerous problems with the immobiliser.
>
> Anybody know a way of disabling/bypassing/resyncing the immobiliser to get 
> it going again?
>
> I've found a google text-only cache of a PDF file (original long gone off 
> the web...) that says how to resync lots of cars systems, but it only 
> covers the Laguna II (Keycard) version.
>
> Apparently there is a procedure you can use involving the accelerator 
> pedal and a button on the steering column to enter the immobiliser code, 
> but I can't find any details.
>
> Any suggestions? (Apart from 'scrap it' which I've already tried on 
> him...)


Autodata says:
immobiliser can only be programmed with diagnostic equipment

models with 5 number key head marking: temporarily disable with 4 digit code 
as detailed in owners handbook

best I could see, sorry.

mrcheerful

"mrcheerful ."  wrote in message
news:shvEe.75763$G8.37744@text.news.blueyonder.co.uk...

>
> "PC Paul"  wrote in message
> news:AheEe.24754$yP3.16265@fe1.news.blueyonder.co.uk...
> >A friend has an N reg Laguna. It worked fine for a while then refused to
> >start - and now the battery is flat as well.
> >
> > Reading up on it I see there were numerous problems with the
immobiliser.
> >
> > Anybody know a way of disabling/bypassing/resyncing the immobiliser to
get
> > it going again?
> >
> > I've found a google text-only cache of a PDF file (original long gone
off
> > the web...) that says how to resync lots of cars systems, but it only
> > covers the Laguna II (Keycard) version.
> >
> > Apparently there is a procedure you can use involving the accelerator
> > pedal and a button on the steering column to enter the immobiliser code,
> > but I can't find any details.
> >
> > Any suggestions? (Apart from 'scrap it' which I've already tried on
> > him...)
>
> Autodata says:
> immobiliser can only be programmed with diagnostic equipment
>
> models with 5 number key head marking: temporarily disable with 4 digit
code
> as detailed in owners handbook
>
> best I could see, sorry.
>



As an aside, you programme Hyundai and Proton immobilizers with a
combination of accelorator and HRW button presses!

Tim..

mrcheerful . wrote:

> "PC Paul"  wrote in message
> news:AheEe.24754$yP3.16265@fe1.news.blueyonder.co.uk...
>>
>> Apparently there is a procedure you can use involving the accelerator
>> pedal and a button on the steering column to enter the immobiliser
>> code, but I can't find any details.
>>
>> Any suggestions? (Apart from 'scrap it' which I've already tried on
>> him...)
>
> Autodata says:
> immobiliser can only be programmed with diagnostic equipment
>
> models with 5 number key head marking: temporarily disable with 4
> digit code as detailed in owners handbook
>
> best I could see, sorry.
>


Thanks for that. Knowing him, he'd be happy with entering a code every 
time... probably enjoy the geekiness ;-)

I'ver since found a reference to the procedure, in case anybody else finds 
it useful..

Key in ignition, in normal running position
Press the accelerator pedal fully
Press button on end of radio stalk the number of times given by the first 
digit
Lift pedal
Floor pedal
press button <second digit> number of times
Lift pedal
Floor pedal
etc....

"PC Paul"  wrote in message 
news:C%xEe.182760$Vo6.106943@fe3.news.blueyonder.co.uk...

> mrcheerful . wrote:
>> "PC Paul"  wrote in message
>> news:AheEe.24754$yP3.16265@fe1.news.blueyonder.co.uk...
>>>
>>> Apparently there is a procedure you can use involving the accelerator
>>> pedal and a button on the steering column to enter the immobiliser
>>> code, but I can't find any details.
>>>
>>> Any suggestions? (Apart from 'scrap it' which I've already tried on
>>> him...)
>>
>> Autodata says:
>> immobiliser can only be programmed with diagnostic equipment
>>
>> models with 5 number key head marking: temporarily disable with 4
>> digit code as detailed in owners handbook
>>
>> best I could see, sorry.
>>
>
> Thanks for that. Knowing him, he'd be happy with entering a code every 
> time... probably enjoy the geekiness ;-)
>
> I'ver since found a reference to the procedure, in case anybody else finds 
> it useful..
>
> Key in ignition, in normal running position
> Press the accelerator pedal fully
> Press button on end of radio stalk the number of times given by the first 
> digit
> Lift pedal
> Floor pedal
> press button <second digit> number of times
> Lift pedal
> Floor pedal
> etc....


let's hope there is no-one knocking on the window with a baseball bat.

mrcheerful

mrcheerful . wrote:

>
> let's hope there is no-one knocking on the window with a baseball bat.
>


Nah, I don't live in London...

On my old Astra I just took out the immobiliser and wired round it... most 
cost effective way since we had one plip and two regular drivers, and no 
real car theft problem round here.

It looks like this Laguna has the immobiliser as part of the ECU so that 
option is out :-(

Never did like Renault...

"PC Paul"  wrote in message
news:5oJEe.185032$Vo6.68895@fe3.news.blueyonder.co.uk...

> mrcheerful . wrote:
> >
> > let's hope there is no-one knocking on the window with a baseball bat.
> >
>
> Nah, I don't live in London...
>
> On my old Astra I just took out the immobiliser and wired round it... most
> cost effective way since we had one plip and two regular drivers, and no
> real car theft problem round here.
>
> It looks like this Laguna has the immobiliser as part of the ECU so that
> option is out :-(
>
> Never did like Renault...



You will find *all* immobilizers now are either part of the ECU, or part of
the instrument panel, and cannot be physically bypassed, only via an FCR or
by using a certain button pressing / key combination.

Tim..

Tim.. wrote:

> "PC Paul"  wrote in message
> news:5oJEe.185032$Vo6.68895@fe3.news.blueyonder.co.uk...
>> mrcheerful . wrote:
>>>
>>> let's hope there is no-one knocking on the window with a baseball
>>> bat.
>>>
>>
>> Nah, I don't live in London...
>>
>> On my old Astra I just took out the immobiliser and wired round
>> it... most cost effective way since we had one plip and two regular
>> drivers, and no real car theft problem round here.
>>
>> It looks like this Laguna has the immobiliser as part of the ECU so
>> that option is out :-(
>>
>> Never did like Renault...
>
>
> You will find *all* immobilizers now are either part of the ECU, or
> part of the instrument panel, and cannot be physically bypassed, only
> via an FCR or by using a certain button pressing / key combination.
>


Still don't like Renault lol.

Anybody know whether the Laguna immobiliser can be permanently disabled?

I had a laguna with a similar problem ,certain cars made where recalled cos 
it was a crap idea i guess. Check your car hasn't missed the recal mine did 
,it also needed undersealing too.Check with renault or the AA site. Great 
car it was the 2L16v (N7Q engine)but too expensive too repair.Get an Alfa i 
did and love it!!!!!