Technical Ducato X250 immobiliser light on and won't start

[NZGrahamO]

Hi

You seen to have gone done the rabbit hole with your problem ( It has an intermittent immobiliser issue where the Fiat Code (immobiliser) light comes on and it will not start )
I see you are using a clone ELM 327 interface with your Multiscan software. ????
Do not do this only use the real one sold with the Multiscan software.
Multiscan advise this because of the many problems people have.
Do not use any other type of scan software / scan tools
You need to get the e learn drawings and check / test all connections on the C lines.
Be though with pin connections into plugs.
Start with the info I posted ( Graham O )
Can line problems will show all sorts of faults up which for the most are red herrings.
I found that at the hard way.
Stay with your first fault ( It has an intermittent immobiliser issue where the Fiat Code (immobiliser) light comes on and it will not start )

Graham O

 

[ducatambo]

Hi

You seen to have gone done the rabbit hole with your problem ( It has an intermittent immobiliser issue where the Fiat Code (immobiliser) light comes on and it will not start )
I see you are using a clone ELM 327 interface with your Multiscan software. ????

it's a cheap generic one, yes.

Do not do this only use the real one sold with the Multiscan software.

Authorised MES distributors sell VGate VLinker FS highspeed interface. I guess that is the one you mean. Only marginally more expensive.

Multiscan advise this because of the many problems people have.
Do not use any other type of scan software / scan tools
You need to get the e learn drawings and check / test all connections on the C lines.
Be though with pin connections into plugs.

That makes sense. I spent several hours on e-learn yesterday getting all the diagrams I need.

Start with the info I posted ( Graham O )

The specific pinouts you posted don't apply to my vehicle. Euro 5 vehicles have different modules and correspondingly different pinouts, which vary further depending on the engine. But anyway thanks for posting because I had to go and figure that out!
A warning to anyone looking for pinouts on E-learn: when following links make sure you are linked to the page which is relevant to your model as I have been 'lead away' and had to get into the correct page from higher up the menu hierarchy!
This from e-learn (for Euro 5):

The key recognition dialogue and the code exchange between the Body Computer M001 and the engine management control unit M010 occur through the C-CAN, via pins 37 and 38 of connector D of the Body computer M001 and the engine management control unit M010 (pins 83 and 84 of connector B for the 3.0 JTD version, pins 70 and 69 of connector B for the 2.3 JTD version, pins 25 and 24 of connector B for the 2.0 JTD version).

The following nodes are connected to the Body Computer M001 via the C-CAN high speed network:

• the diagnostic socket R010
• the steering angle control unit M092 (only versions with ESP);
• the ABS/ESP braking system control unit M051;
• the engine management control unit M010.

In detail, the Body computer M001 is connected:

• from pins 28 and 29 of connector H with the diagnosis socket R010 (pins 6 and 14);
• for the versions with ESP, from pins 38 and 37 of connector D, with the steering angle control unit M092 (pins 4 and 2 of connector B);
• for the versions without ESP, from pins 38 and 37 of connector D, with the ABS/ESP braking system control unit M051 (pins 26 and 14).

For the versions with ESP, the steering angle control unit M092 is connected to pins 26 and 14 of the braking system control unit M051 through pins 3 and 1.


The ABS/ESP braking system control unit M051 is then connected, via pins 15 and 27, to the engine management control unit M010 (pins 83 and 84 of connector B for the 3.0 JTD version, pins 70 and 69 of connector B for the 2.3 JTD version, pin 25 and 24 of connector B for the 2.0 JTD version).

Additionally the base colour of the C-can lines is slightly different on the Euro 5's, dark blue as opposed to light blue on earlier models. Stripe colours are the same.

Can line problems will show all sorts of faults up which for the most are red herrings.
I found that at the hard way.

Stay with your first fault ( It has an intermittent immobiliser issue where the Fiat Code (immobiliser) light comes on and it will not start )


Graham O

 

[NZGrahamO]

it's a cheap generic one, yes.

Authorised MES distributors sell VGate VLinker FS highspeed interface. I guess that is the one you mean. Only marginally more expensive.



That makes sense. I spent several hours on e-learn yesterday getting all the diagrams I need.

The specific pinouts you posted don't apply to my vehicle. Euro 5 vehicles have different modules and correspondingly different pinouts, which vary further depending on the engine. But anyway thanks for posting because I had to go and figure that out!
A warning to anyone looking for pinouts on E-learn: when following links make sure you are linked to the page which is relevant to your model as I have been 'lead away' and had to get into the correct page from higher up the menu hierarchy!
This from e-learn (for Euro 5):


Additionally the base colour of the C-can lines is slightly different on the Euro 5's, dark blue as opposed to light blue on earlier models. Stripe colours are the same.

Sorry my info re pin outs 47 /48 on plug D M001 a mis type . Should had read pin outs 37 / 38 on plug D M001.
You are using the same drawings as I did.
The ELM 327 interface that is recommended for your Multiscan software I got from Gerdan in the UK.
Beware of clone ELM 327.
As I found on the Can lines just a pin in a plug not making contact with the socket on the ECM will throw up heaps of different faults making you look for faults that are not there.
But the immobilizer fault comes from the area we have been talking about ( Loss of connection )
Also if you have a 2.3 ltr engine pins 70 / 79 plug B or 2.0 ltr engine pins 24 / 25 plug B on M010