[arturjfonseca]

Hi everyone.

I need to immo off Siemens S111730108C, from a 1997 Renault Megane 1.4.

Used Xprog v6.12 to read MCU (MC68HCP11E1VFN - MASK 4E28B) eeprom and after read I've erased the eeprom, as seen in several tutorials.

Lifted pins RXD/TXD/RESET.

I've also cutted the 29pin from Ecu, but car won't start.

Any ideas what might be happening here?

[dabaca]

Hi everyone.

I need to immo off Siemens S111730108C, from a 1997 Renault Megane 1.4.

Used Xprog v6.12 to read MCU (MC68HCP11E1VFN - MASK 4E28B) eeprom and after read I've erased the eeprom, as seen in several tutorials.

Lifted pins RXD/TXD/RESET.

I've also cutted the 29pin from Ecu, but car won't start.

Any ideas what might be happening here?

write the file and try. give an answer.

[arturjfonseca]

Tried it. Didn’t work!

Now the remote doesn’t work, which I believe it’s not related to the immo off done.

I guess I’ll have to check fuses and relays, and then check the fuel pump and camshaft position sensor!

Do you guys have any clue for what might be happening here?

Unfortunetely, the only key available doesn’t have that code inside so I can’t generate the pin code for it! Is there any other option to retrieve the code for it, and try to resync the key (IR)?

[arturjfonseca]

So I've disassemble the UCH from this car, and it was wet and all dirty, managed to desolder MCU to read the Key Code, and resoldered the mcu in place.

Went to the car, installed it again, and now got a new sympthom. That blinking light that means "Eletric malfunction", which I believe is a dead UCH, do you guys agree?

I tried to disconnect the battery for 5/10 minutes, and connecting again, and nothing changed.

I'm completely lost with this car...

It all started with an Immo off, that didn't work, burned the original ecu, bought a replacement, installed, and than the UCH is probably dead as well. The remote stopped working.

So now I've ordered a replacement UCH, to see if I can communicate with the car, which I can´t now.