First of all congratulations on your fantastic site , great info & planning .My name is Steve i am a Brit. living in Germany so no problems with English . Cannot understand any Dutch just try to combinate my English & German to translate. So here is my problem . i have a 125 Elystar efi .ECU is dead .I now have a used ECU from another machine but it will not start because of the immobiliser . Does anyone know if the two can be reprogrammed or what i must do to get my scooter up and running again.Would be grateful for your help.
Best wishes ..Steve57

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Hi Steve, first of all: Welcome !

Now concerning your question. From what i've read it is possible to reprogram the immobiliser. When you buy a new ECU it comes with instructions how to do it. Maybe someone has these instructions still lying around and is willing to copy them for you. Or you could always bribe a scooterdealer to tell you how to do it

Also browse the instructions and manuals section

There might be some interesting documents for you.

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Hi Steve ,

its possible to reprogram the immobiliser , but you need to have both the original black contact key as wel as the second red mother key wich came with the scoot when sold new .

Normally with a 50cc elystar you have to undo both battery leads and leave 'm off for say a few minutes ,then reconnect the battery leads and make contact using red motherkey ..

the motherkey then reprogrammes the special cdi wich is the part that is actually blocking the spark now .
If a start immobilizer is active you'll notice the red flashing red in cockpit keeps flashing after you 've made contact .

If the immo-reprogram was succesfull you'll notice the flashing light in cockpit has stopped after making contact ..if so scoot should be sparking again. After the reset the black key should be working again too for your daily use ..

good luck trying Steve ,if theres nothing wrong with the keys /cdi themselves the Ely should come back to life that way .

(took the liberty to change the post header wich makes it easier findable in hit words for other users too ,as i bet there's plenty peeps with the exact same problem out there..)

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Hi Tjebbo & Heino
Thanks for the tips , and the welcome Tjebbo.We tried the system you described Heino but it did'nt work , perhaps we got something wrong .Will probably try again tomorrow , but thanks for the help anyway ,so bye for now and again BIG thank you too both of you .

Steve

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I remember an old dutch thread here with a 50cc elystar .. after repeated try's his system was reflashed suddenly and did start again ..

last i heard was that red key was working but his black key key appeared to be dead and didnt reflash so it does happen that the blackkey itself just dies sometimes...

Pity peugeot itself is never reachable for any form of support for problems like this ,except the advice go to dealer.
Chances are when you do, the dealer hasnt got an answer either except refit the whole system new for a lot of $$$

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Maybe this will help you?
Its voor The Jet Force 125 EFI, Same Ignition though

TRANSPONDER IMMOBILISER

Precautions:
Check that the diagnostic plug jumper is fitted. The jumper provides the link between the immobiliser module and the injection/ignition ECU, and is essential to be able to start the engine
If the jumper is not fitted, the transponder LED diagnostic is always the same (no link between the immobiliser and the ECU)
Note: Fitting of a 5 k resistive suppressor along with a resistive spark plug is essential for the proper functioning of the engine

System programming
The machine is supplied with a red key (master) and a black key
The system is programmed in the factory
It is possible to program up to 7 black keys
The key memory procedure is the same as the AEC400 and ACI100 system

Reminder of the key memory procedure
1. Using the red key, set the ignition to on, and when the LED lights, turn off the ignition
2. Within a maximum of 15 seconds of cutting off the ignition with the red key, turn on the ignition with the black key, and when the LED comes on turn off the ignition (repeat the operation for each black key to be memorised (maximum of 7 black keys))
3. Within a maximum of 15 seconds of turning off the ignition with the last key memorised, turn on the ignition with the red key, and when the LED comes on, turn off the ignition

Key memory check
Using the red key, turn on the ignition, the LED on the instrument panel comes on for 0.5 seconds and flashes a number of times. The number of flashes indicates the number of keys memorised, including the red key


Additional information
Before carrying out any work on the transponder immobiliser, have the machine red key and black key to hand

If the engine will not start, a first diagnostic may be carried out using the LED before checking the other parts of the ignition system


Note: Do not remove the diagnostic plug jumper
In case of a fault, do not use an immobiliser module or ECU from another machine to carry out tests. The keys, immobiliser module and ECU programmed on another machine form an assembly, are linked by a code and must under no circumstances be separated


Important : If an ECU is changed without memorising the keys, do not turn on the ignition more than 16 times if the diagnostic jumper is disconnected as beyond this number, the ECU immobiliser function is erased.

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