Lexia Questions...........

Geoff Lebowski · Post by **Geoff Lebowski** » 18 May 2011, 17:40

I've made no headway in solving my immobiliser fault, be it exactly that or the BSI with it's knickers in a twist.
So, my friend/neighbour has downloaded Lexia onto his lap top (only, the Lexia requires XP so he's going to borrow a work one).

I'm hoping then to be able to 'get in to' the BSI and interrogate. Hopefully I can 're-set' the BSI or Immobiliser (somehow.....) maybe using the PIN code on the credit card type Citroen security thing.

Does this make sense or am I talking utter nonsense? Is there an instruction book i could download or even borrow from anyone please?

If that fails, is it worth trying a 3rd party auto electrician type? Or do they cause more upset than they solve?

boristhespie · Post by **boristhespie** » 18 May 2011, 19:22

You need the lexia interface as well as software

addo · Post by **addo** » 18 May 2011, 21:09

The BSI performs immobilising duties.

I've not opened one up (perhaps someone here could illuminate the thread) but my understanding is it has an internal solid state driven relay/switch that allows ignition spark to occur.

AFAIK when they dropped the tachymetric relay they also dropped cutting injector supply via an immobiliser feature.

Post by **CitroJim** » 18 May 2011, 21:14

addo wrote: AFAIK when they dropped the tachymetric relay they also dropped cutting injector supply via an immobiliser feature.

Well, not on all Adam, the tachymetric relay (what a lovely name!!) was replaced in most instances with the double injection relay. It did the same job in cutting power to the pump, injectors and coil as well as the ECU if the G switch operated.

The ECU looked after cutting the pump when the engine was stopped...

Essentially the immobiliser operates these relays as well as unlocking the ECU (as I understand it)

wright · Post by **wright** » 18 May 2011, 21:21

the next step is to get it plugged in and see what faults show up, but there could be a problem with the bsi, in my time working with cars you don.t pull fuses to check which one is blown because it is known to cause ecu problems, i use a test light on the contacts of the fuse if it only lights on one side that's your blown fuse, this is not possible on some renault's because they have a sealed fuse, in which case i find out which fuse i'm looking for

wheeler · Post by **wheeler** » 19 May 2011, 16:57

In simple terms the BSI tells the injection ECU not to switch the injectors if the key is not recognised ( sometimes also the spark aswell on petrol engines) It will never stop the spark on it's own to prevent flooding the engine & catalyst with unburnt fuel. The imobiliser also does not stop the in tank fuel pump operating.

Geoff Lebowski · Post by **Geoff Lebowski** » 19 May 2011, 21:36

in my time working with cars you don.t pull fuses to check which one is blown because it is known to cause ecu problems,

Now you tell me!

the next step is to get it plugged in and see what faults show up, but there could be a problem with the bsi

I probably have messed up the BSI, I had no idea there was a procedure for removing a fuse or battery. But, I may as well have a go.

boristhespie - is the interface the cable? He has one, but thanks for the tip.

He has loaded the program and was asked for a dealer i.d. or dealer number/code, does anyone know what this is exactly and where I can find one?

Geoff Lebowski · Post by **Geoff Lebowski** » 23 May 2011, 11:22

Hi,
can anybody tell me what a dealer code might be please? Does anyone else who uses Lexia have to put this code in?

VertVega · Post by **VertVega** » 23 May 2011, 11:56

You can use dealer code "001" or "0001", but you must have key generator to complete the installation.

Geoff Lebowski · Post by **Geoff Lebowski** » 23 May 2011, 12:18

Thank you.

erm, what's key generator?

VertVega · Post by **VertVega** » 23 May 2011, 12:23

It generates activation code for your program ...
There are lots of links on that and I will send an example link to your p.m.
Don't want to be a spammer

Geoff Lebowski · Post by **Geoff Lebowski** » 23 May 2011, 19:03

You're a star Vert Vega, thank you so much for your help. I'll have a try and see what happens

boristhespie · Post by **boristhespie** » 23 May 2011, 19:37

I posted a link to a ftp site with these files on somewhere here. Just search my posts.

Post by **Paul-R** » 23 May 2011, 22:05

That's been removed now I think, Bors.

I had look around that site and although there are plenty of files to be downloaded there doesn't appear to what is called a key generator there.

I bought my Lexia already installed on an (elderly) laptop so didn't have the need for a key. When you bought yours, where did you get your key from?

boristhespie · Post by **boristhespie** » 23 May 2011, 22:26

It was on the disc that came with it.