Transponder codeing

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Re: Transponder codeing

Post by GiveMeABreak »

Chassis number? Do you mean RPO? Your RPO is 9425 if that's what Lexia is asking for when you connect up.

The issue you are going to have is that the engine ECU has a code that has to be matched with the 'Code Unit'. So a donor 'Code Unit' won't work as it has a different code stored in it and the engine ECU will therefore not authorise starting.
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Re: Transponder codeing

Post by Fra21r+ »

Marc..... when I connect lexia it asks for chassis number not RPO

Lexia asked for the 5 number password from the key card when I go to programming
it has never asked for the RPO number as it is only four numbers

The ecu all have there matching "Code units" when I change the ecu I also change the code unit too
All work with the accelerater pedal coding with there own key card numbers
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Re: Transponder codeing

Post by GiveMeABreak »

Ok, so the Chassis number should be the VIN - normally this is auto-detected, but on some vehicles you need to enter it manually if it cannot detect it.

So from the initial vehicle selection screen, select relay II, then try entering the VIN if asked for the chassis number.
If you have to select a body type it is: LONG HIGH SIDE STD ROOF TYPE 18 for your Relay II, with 2.2 HDi (DW12UTED) engine, but I don't think it will ask for all this - just in case, being a commercial.
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Re: Transponder codeing

Post by Fra21r+ »

Thanks Marc

Yes this is the sequence

Start lexia

Select jumper mk2*

Asks to connect VCI*

Asks to connect module to usb*
(don't know what this is but hit return.. Sometimes get a error message and have to reset tool)

Asks for vin/chassis number

Enter it *

Main screen option's

select global *

Goes through its cycle

Immobiliser Yes Yes (as fualt no transponder recognised

Select*

Programme *

Enter 5 number code *

Correct*

In progress to write to key

Error not completed code incorrect
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