W209 EZS 209 545 23 08 not reading

[lmqcatarino]

Hi,
I have a EZS 209 545 23 08 part number and can't read it.
Car have keys, but don't start.
Try keys with tester connected to EZS on bench and don't work.
Try connect to EZS and ESL on bench, but no success.
Try read EZS with VVDI-Prog pin out, but no success, it says:
Error: chip not connected
I have R270, but there is no Pin out for this EZS.
Confirm it's a 4L40K mask inside.
Perhaps EZS is broken.
Any idea what next step to solve this?
PSX_20200910_051549.jpg
PSX_20200910_050456.jpg
PSX_20200910_051608.jpg

[medcapot]

i had a same problem, problm in cpu solder, solder it very carrefaly and all will be ok
good luck

[p1et]

Try R270 with pinout from vvdi or use xprog if you have

[keyselberti]

are you trying with w209 st12 from vvdi ?

[p1et]

are you trying with w209 st12 from vvdi ?

I tried and couldn't read st12 from 209 545 10 08 I think but succeded with xprog

[lmqcatarino]

Try R270 with pinout from vvdi or use xprog if you have

I will try R270, don't have xprog.

[PierreTheron]

check mask on mcu m8 and r270 connections will be good to read it

[lmqcatarino]

check mask on mcu m8 and r270 connections will be good to read it

Mask is a 4L40K.
I will try read it with R270.

[lmqcatarino]

The switch that recognised the key when it's inserted, what behaviour should make?
IMG_20200911_004813.jpg

[lmqcatarino]

Job done.
Could read car EZS eeprom and flash with R270.
Then write eep and flash to a same EZS from scrap.
Test and everything work fine. Keys - EZS - ESL.
Thanks to all of you.