swap ezs 2095451908---->209545xxx

[tatop]

hi friends, can i swap ezs w203 original n. 2095451908 with one used 2095450508 or 2095451708 or 209545XXX???
i have saved original eeprom of ezs
tanks for info

[smayer]

hi friends, can i swap ezs w203 original n. 2095451908 with one used 2095450508 or 2095451708 or 209545XXX???
i have saved original eeprom of ezs
tanks for info

Yes you can. write EPROM from old in "new".

[tatop]

Yes you can. write EPROM from old in "new".

therefore, all the EZS 209505XXX are equal?
just change the eeprom??

[smayer]

No, you have many different EZS, even whith same appearance and plugs. In your case must check if you have the same PCB, ST12 or HC12.

[tatop]

No, you have many different EZS, even whith same appearance and plugs. In your case must check if you have the same PCB, ST12 or HC12.
ok but ezs with number 209 mounted on W203 are all the same right??

EZS my original work, turn the key, unlock the steering wheel but in the instrument panel lights up only the srs light and nothing else, and then the car will not start, starter does not turn on the switchboard lights up only srs, and no other light
What do you think is due to error?

[MarkPRP]

You sure the key is working 100%?

[tatop]

You sure the key is working 100%?

yes , why u tell me this???
i send here my orginale eeprom file.... u can check if is ok??

[smayer]

Try make a new key if you don't have more then one. A diagnose result can help.

[ALEXEI]

make Star diagnose and check communication between modules

[benzstop]

use star and cjeck for circuit 15c in actual values

[Speedosoft]

hi friends, can i swap ezs w203 original n. 2095451908 with one used 2095450508 or 2095451708 or 209545XXX???
i have saved original eeprom of ezs
tanks for info

Most of the time the answer will be yes but not always. First check the pcb as you were told. If your original EZS has never been replaced and is a pretty early model then it might have a HC12 but it can be a C209 or ST12. So make sure you are trying to replace 912 with a 912 and not with a 9S12. In case of 9S12 versions C209's are 112 pin mcu's (most CLK and G wagon models) and their flash might not understand your eeprom. So put all the chances on your side and make sure you're dealing with close mask sets (3L40K and 4L40K are very similar and perfectly interchangeable but not really or always with 0L85D or 1L85D types) Besides there are three connectors that plug in to the els whereas most W203's have 2 connectors that plug in (3rd left empty). I've done this many many times and I can tell you that not all of them are compatible.

[gogoli]

hi all w203 2005 i have problem i think is ezs.. I insert key in EZS start the car but problem is when car start not work nothink dash,light,glass,ect if I stop the engine work all perfect ,
i think is flash can you help me pls

ezs nr w2095453408

thanks

[gogoli]

sorry eprom iside is 5L40K
THANKS