P38A Immobiliser removel

mrtayto · Apr 15, 2020

New p38 owner,have only one key and it won't unlock the doors with the button which doesn't bother me as it will rarely be locked but from reading this and other sites there seems to be immobiliser issues,I'm wondering would it be safer to just bypass immobiliser.
I've a nanocom ordered, will be able to do it?

oakey · Apr 15, 2020

I havent done it but as far I remember yes it does.
I would recommend, as nanocom does so much then you need to be VERY careful if you make changes and they have unintended consequences. Always make a note of the original settings before you change stuff

brianp38dse · Apr 15, 2020

With nanocom you can turn of the alarm and immobilizer and just use the key according to Data and a few others.

Grrrrrr · Apr 16, 2020

It turns off passive immobilisation only but it will reduce issues with using just the key.

Your main issue will be if the microswitches in the driver's door start acting up.

Does the fob light up? Is the RF receiver plugged in? Brian has a cheap fix for RF issues, Marty has a reasonably priced fix and Land Rover have a loony price solution.

Datatek · Apr 16, 2020

mrtayto said:
New p38 owner,have only one key and it won't unlock the doors with the button which doesn't bother me as it will rarely be locked but from reading this and other sites there seems to be immobiliser issues,I'm wondering would it be safer to just bypass immobiliser.
I've a nanocom ordered, will be able to do it?

With Nanocom, you will be able to turn off EKA and the Immobiliser, the car will then work happily with just the key, even the drivers door lock issues are reduced. I have 2 P38's operating that way. In this mode you can also disconnect the aerial from the FOB receiver to eliminate one source of battery drain.

RangeRoller dt · Apr 16, 2020

If it’s new to you a new fob battery maybe worth while

Never superlock your vehicle

mrtayto · Apr 16, 2020

RangeRoller dt said:
If it’s new to you a new fob battery maybe worth while

Never superlock your vehicle

had to google what superlock is

would it be worth while diabling that as well?want to try and minimize chances of it not starting...

mrtayto · Apr 16, 2020

Grrrrrr said:
It turns off passive immobilisation only but it will reduce issues with using just the key.

Your main issue will be if the microswitches in the driver's door start acting up.

Does the fob light up? Is the RF receiver plugged in? Brian has a cheap fix for RF issues, Marty has a reasonably priced fix and Land Rover have a loony price solution.

what are the fixes that brian and marty have?

Datatek · Apr 16, 2020

mrtayto said:
had to google what superlock is
would it be worth while diabling that as well?want to try and minimize chances of it not starting...

You need to delve into the drivers door lock to disable super locking, it has to be done on each door as far as I know.

RangeRoller dt · Apr 16, 2020

Worth reading the locking/unlocking/eka procedures in owners manual - there’s 9 pages on locking/superlocking/lazylocking it’s crazy

Grrrrrr · Apr 16, 2020

mrtayto said:
what are the fixes that brian and marty have?

@brianp38dse uses a second fob to toggle the RF receiver on and off. @martyuk has produced a filter unit that stops any unwanted signals getting to the BECM and waking it up.

Disabling superlocking means getting each lock actuator out and cutting the right wire.

brianp38dse · Apr 16, 2020

Here you go
https://www.landyzone.co.uk/land-rover/rf-reciever-work-round.258096/

Rock ape · Apr 17, 2020

Grrrrrr said:
It turns off passive immobilisation only but it will reduce issues with using just the key.

Your main issue will be if the microswitches in the driver's door start acting up.

Does the fob light up? Is the RF receiver plugged in? Brian has a cheap fix for RF issues, Marty has a reasonably priced fix and Land Rover have a loony price solution.

Sorry to hijack thread, but is it possible to remove/bypass the immobiliser in engine ECU? Thanks

wammers · Apr 17, 2020

Rock ape said:
Sorry to hijack thread, but is it possible to remove/bypass the immobiliser in engine ECU? Thanks

No.

Rock ape · Apr 17, 2020

wammers said:
No.

Thanks Wammers

Grrrrrr · Apr 17, 2020

Rock ape said:
Sorry to hijack thread, but is it possible to remove/bypass the immobiliser in engine ECU? Thanks

On diesel? Well, if you get a replacement chip for the engine ECU, copy the data over but don't set the chip to secure (is that the right word? There's a term for it) then you can leave it with a default that always allows the engine to start.

RangeRoller dt · Apr 17, 2020

What’s the name of that ecu chip you had/have in yours Wammers?
Must write it down

Grrrrrr · Apr 18, 2020

RangeRoller dt said:
What’s the name of that ecu chip you had/have in yours Wammers?
Must write it down

Tornado? Or was that Tomcat?

Datatek · Apr 18, 2020

Grrrrrr said:
On diesel? Well, if you get a replacement chip for the engine ECU, copy the data over but don't set the chip to secure (is that the right word? There's a term for it) then you can leave it with a default that always allows the engine to start.

A new EDC can be set to secure or left as it comes unsecure so it doesn't need a code. You cannot just get a chip and copy the data over, even if you did the secure status flag would be copied over.

wammers · Apr 18, 2020

RangeRoller dt said:
What’s the name of that ecu chip you had/have in yours Wammers?
Must write it down

Don't know, it was in when i bought the car and have never investigated it. Only thing i know is that it is superb. A new ECU can be left open or set robust, but one that has been set robust cannot be returned to it's previous state.

P38A Immobiliser removel

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