P38A Turning off Immobilization etc. How?

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Grrrrrr said:
Can you not just enable it again with the Nanocom? Or will it not enable until the EKA has been put in? I seem to recall a hell of a thread somewhere on this with a well known combatant.
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The BECM will not ask for EKA if the EKA is turned off and yes you can just turn it back on.
The key to not having problems is, as I said, turning off both EKA and the Immobiliser. Both can of course be turned back on if you want trouble:rolleyes:
The previous problems were, if I remember correctly, about entering the EKA with diagnostics which cannot be done on early BECM's, nor can you turn EKA off if the system wants the EKA code.
 
Datatek said:
The BECM will not ask for EKA if the EKA is turned off and yes you can just turn it back on.
The key to not having problems is, as I said, turning off both EKA and the Immobiliser. Both can of course be turned back on if you want trouble:rolleyes:
The previous problems were, if I remember correctly, about entering the EKA with diagnostics which cannot be done on early BECM's, nor can you turn EKA off if the system wants the EKA code.
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That last part is the key. That's what Rick was saying: if for some reason the BECM throws a wobbly and needs the EKA if you've switched it off you cannot enter it.
 
It's been a while since i went and did all the testing/ analysis, but agreed - you cannot disable the EKA once the engine is disabled. On the other hand, even with EKA disabled you can still use the nano to enter the EKA code if you want (i didn't test the door lock/ unlock EKA method in that situation) So disabling immobilisation (actually it's only the passive immobilisation you are disabling) and EKA doesn't really have any downsides. Best to keep the nano close by though. Tested on 4.6 v8
 
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Grrrrrr said:
That last part is the key. That's what Rick was saying: if for some reason the BECM throws a wobbly and needs the EKA if you've switched it off you cannot enter it.
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If the EKA is switched off it ceases to be part of the firmware operation, if the immobiliser is turned off then it will never be needed.
 
romanrob said:
It's been a while since i went and did all the testing/ analysis, but agreed - you cannot disable the EKA once the engine is disabled. On the other hand, even with EKA disabled you can still use the nano to enter the EKA code if you want (i didn't test the door lock/ unlock EKA method in that situation) So disabling immobilisation (actually it's only the passive immobilisation you are disabling) and EKA doesn't really have any downsides. Best to keep the nano close by though. Tested on 4.6 v8
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Turning off the immobiliser on the diesel may be different to the V8, but with it turned off, the mobilisation code is sent automatically at intervals as soon as the key is put in the ignition without the need for FOB codes EKA codes or anything else and has nothing to do with the passive alarm.
 
Grrrrrr said:
I wonder what Rick is worried about then? All I know is that he knows a lot more than me about it.
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I think Rick has misunderstood what I'm saying, he is correct if you just turn off EKA you can end up in a world of pain, especially on early cars where you cannot enter the EKA code from diagnostics. With the immobiliser turned off, the EKA is irrelevant.
 
Datatek said:
Turning off the immobiliser on the diesel may be different to the V8, but with it turned off, the mobilisation code is sent automatically at intervals as soon as the key is put in the ignition without the need for FOB codes EKA codes or anything else and has nothing to do with the passive alarm.
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Who mentioned a passive alarm? We don't have one. The passive immobiliser is what is turned off in nanocom when you set immobiliser to "disabled" - the point is only that the disable option does not disable the entire immobilisation system, it just stops the vehicle immobilising itself in certain ignition off situations.
 
Saw this pop up on my fakebook feed from classic rides north wales-Les edwards

"Self install immo off boxes.
Remove your immo off completely do it your self.
Contact us for more information-£65"

He5Ts6B.jpg
 
Grrrrrr said:
It occurs to me he might have ripped off a syncmate and just keep transmitting the EMS code? There's a difference there between early and late EDC.
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For the diesel, it's easy enough to transmit the mobilisation code to the EDC, it can be done with an Arduino, however you do need to know what the code is in the first place and they are not all the same. The petrol uses a rolling code so is harder.
 
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