General Ducato 244 2.3 Immobileizer problem

[Lukino]

Hi guys, I have a problem with my van, after changing the battery it doesn't start and the immo light stays on, but the code reads it, what can I do?

 

[Communicator]

Hi guys, I have a problem with my van, after changing the battery it doesn't start and the immo light stays on, but the code reads it, what can I do?

I cannot understand why replacing the battery with a similar one should affect the immobiliser, and I do not understand "but the code reads it".

The immobiliser light will not go out if the key recognition has failed, Trying to start the engine with the immobiliser light on is a waste of time.

I fixed an intermittent failure to recognise the key on my x244 by applying electrical contact cleaner to the code receiver connectors.

Remove the steering column lower cover, which has 4 screws with PZ2 heads. Code receiver is revealed. Smaller plug is for antenna, which is the black ring around the ignition key slot. Disconnect, apply contact cleaner and replace. For good measure repeat with larger connector.

Also do not carry any other chipped key on the same key ring, as the codes can interfere., other keys or metal objects can absorb the weak radio signals.

 

[Lukino]

I cannot understand why replacing the battery with a similar one should affect the immobiliser, and I do not understand "but the code reads it".

The immobiliser light will not go out if the key recognition has failed, Trying to start the engine with the immobiliser light on is a waste of time.

I fixed an intermittent failure to recognise the key on my x244 by applying electrical contact cleaner to the code receiver connectors.

Remove the steering column lower cover, which has 4 screws with PZ2 heads. Code receiver is revealed. Smaller plug is for antenna, which is the black ring around the ignition key slot. Disconnect, apply contact cleaner and replace. For good measure repeat with larger connector.

Also do not carry any other chipped key on the same key ring, as the codes can interfere., other keys or metal objects can absorb the weak radio signals.

sorry if I'm only replying now, I have two keys, is it possible that they both don't work?

 

[Communicator]

sorry if I'm only replying now, I have two keys, is it possible that they both don't work?

Yes if antenna connections is bad. If one key has been damaged, perhaps by being dropped, then it may not work. If both keys are good, but on same key ring, then both will respond and interfere.

 

[Lukino]

Yes if antenna connections is bad. If one key has been damaged, perhaps by being dropped, then it may not work. If both keys are good, but on same key ring, then both will respond and interfere.

no the two keys are not together, then I found the 100ah fuse battery broken

 

[Communicator]

no the two keys are not together, then I found the 100ah fuse battery broken

Fiat eLearn shows F70 150A feeding the engine bay fuse box, which the supplies the LHS cab fusebox from a 70A maxi blade fuse.

 

[Lukino]

Fiat eLearn shows F70 150A feeding the engine bay fuse box, which the supplies the LHS cab fusebox from a 70A maxi blade fuse.

the others are fine, only this one I found interrupted

 

[Communicator]

the others are fine, only this one I found interrupted

Please confirm that this is the mega fuse with 8mm holes. If so that is the one shown as 150A in eLearn. Perhaps check in drivers manual if available.