Renault Megane Scenic 1999 - Identifying Memory Chips for Immo Key, Receiver, Central Locking

Question

Hello. Request to identify the memory chips on the plates,
Immo Key and receiver, central locking controller.
The problem concerns Reno Megan Scenic 1999.
The code with immo does not enter, it looks like the central locking controller has failed.
I have the second immo comlet working and I want to solder the memory, if it is not damaged, it should solve the problem, I do not have access to programming, so it is out.

grala1 · Answer

Motorola 3G96A in the first photo. You insert a new UCBIC module with the old memory, the keys and the loop remain old.

leszekrrr · Answer

I only have to solder Motorola 3G96A? I understand well? And as for the memory in the key and loops which are chips? Because there may also be a problem there.

grala1 · Answer

Hold on.
What code?
You will not enter any code there.
Now I noticed that it is UCH and not UCBIC, i.e. the lifted version.
Here you do not enter the code with the button from the central or it was gasping.
Since you have the second set, why solder if the whole thing can be moved.
If you want to change the UCH itself, you only solder the skein and do not replace anything else, the keys with the loop remain.
The central lock is managed by the UCH.
If you think it's his fault, put it back and see if the lock works, how it works, you will do the rest, and if not, you will know that the car is at fault.
What's the problem with the central locking?

leszekrrr · Answer

The central locking is approx.
The problem is immo, the engine controller does not receive the immo code,
I changed the key, loop, and UCH, the immo works from another car, but it is not from this car that the engine controller has not unlocked. So I want to try to solder the memory from a damaged set to a good one. Maybe it will work when the memory is ok.

Added after 28 [minutes]:

There are bad voltages coming from the UCH to the immo loop, so I believe that the culprit is the UCH, therefore the request for memory identification in the three elements: key, loop and UCH

grala1 · Answer

The loop is only a reader so there is nothing to mention.
In the remote control you have a transponder, a black rectangle that is only inserted into the housing, it is not on the board with elements.
You just move the Motorola to the new UCH and nothing else.

leszekrrr · Answer

Thanks for your help as I change the chip. He will say if it helped.

leszekrrr · Answer

After soldering the Motorola 3G96A UCH without any response, what's the problem? Anything else you need to solder in the UCH?

grala1 · Answer

You solder something wrong, your UCH or Motorola are damaged.

Strumien swiadomosci swia · Answer

Do OFF in Sirius. Because otherwise you won't get it.

leszekrrr · Answer

Motorola soldered back to the original UCh, it's ok.
I solved the problem, it was trivial, the shaft position sensor when I measured it with a meter was ok, but sometimes it lost connection, it just did not get permanently damaged, and as for the immo it was off, but the driver shows the error that the immo code did not enter. The car was damaged and I did not know what and who was going through it.
Thanks to everyone for your help.
I close the topic

Renault Megane Scenic 1999 - Identifying Memory Chips for Immo Key, Receiver, Central Locking

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