Technical Fiat Ducato 2019 immobiliser wiring diagram

[Terrybgood]

Hi I am after Fiat Ducato 2019 immobiliser wiring diagram

 

[Communicator]

Hi I am after Fiat Ducato 2019 immobiliser wiring diagram

Hi Terry,

Welcome to the forum. I am sorry to disapoint you, but I suspect that what you seek does not exist. My understanding is as follows.

On x250 and later models (post 2006), the immobiliser aerial connects to the Body Control Module (BCM). The BCM performs the function of code receiver, and communicates with the Engine Control Unit (ECU) via canbus.

The aerial connections at the BCM can be found in the "X250 Training Manual" which is available under the "Downloads" button at the top of the page. Select the longer file offered.

If you have a problem, why not post the details, and someone may be able to help.

 

[Terrybgood]

Hi Terry,

Welcome to the forum. I am sorry to disapoint you, but I suspect that what you seek does not exist. My understanding is as follows.

On x250 and later models (post 2006), the immobiliser aerial connects to the Body Control Module (BCM). The BCM performs the function of code receiver, and communicates with the Engine Control Unit (ECU) via canbus.

The aerial connections at the BCM can be found in the "X250 Training Manual" which is available under the "Downloads" button at the top of the page. Select the longer file offered.

If you have a problem, why not post the details, and someone may be able to help.

I have done a post with my fault it’s a 2019 Ducato 2.0 115 and the immobiliser symbol on the dash is playing up intermittently coming on and not turning off for a while with both my keys

 

[Communicator]

I have done a post with my fault it’s a 2019 Ducato 2.0 115 and the immobiliser symbol on the dash is playing up intermittently coming on and not turning off for a while with both my keys

I had a similar problem with my 2006 x244 2.8jtd. Failed once at a campsite reception, and then a few months later failed 2 out of 5 times when testing. You lose confidence in the vehicle. Working from other threads on here, and my own thoughts, I reasoned that the weak radio signals could be affected by contact oxidation at the code receiver, which is a separate module on the x244. Reseated connectors with liberal application of contact cleaner. No subsequent failures to recognise the key.

Any other keys/metal objects on the same key ring? Some members have reported extracting the chip from the key and sticking sticking it close to the aerial ring, which surrounds the ignition key. As a last resort it is possible to have the code requirement removed trom the ECU. Both of these approaches may have insurance implications.

 

[PeteMaddog]

I had a similar problem with my 2006 x244 2.8jtd. Failed once at a campsite reception, and then a few months later failed 2 out of 5 times when testing. You lose confidence in the vehicle. Working from other threads on here, and my own thoughts, I reasoned that the weak radio signals could be affected by contact oxidation at the code receiver, which is a separate module on the x244. Reseated connectors with liberal application of contact cleaner. No subsequent failures to recognise the key.

Any other keys/metal objects on the same key ring? Some members have reported extracting the chip from the key and sticking sticking it close to the aerial ring, which surrounds the ignition key. As a last resort it is possible to have the code requirement removed trom the ECU. Both of these approaches may have insurance implications.

Hi Communicator, I'm having exactly this issue with my similar 2005 x244 2.8JTD (Rapido motorhome). Could I trouble you to elaborate on where the code receiver is exactly and how you access it to re-seat and clean the connectors please?

 

[Communicator]

Hi Communicator, I'm having exactly this issue with my similar 2005 x244 2.8JTD (Rapido motorhome). Could I trouble you to elaborate on where the code receiver is exactly and how you access it to re-seat and clean the connectors please?

The code receiver is visible when the lower steering column cover is removed. There are 4 off No2 Pozidrive headed screws to remove. Fiddly to engage screwdriver so either magnetic bit type, or tubing/tape wrapped around driver helps in locating screw driver. Perhaps magnetic bit type better for reassembly. Please note that screw recesses are roughly vertical and NOT at right angle to cover. Aerial is smaller 3 way connector, with 2 poles used.