how to get security code to reset opel astra ecu 1999 model

**elmaalouf** · 28th February, 2012, 08:41 PM

hello friends i need to change ecu for one opel astra 1999 model i have to reset it i baught one from a scrap yard but i didnt get the security code so anybody can help me to get it ? the vin readed from the new ecu is WOLOTGF08W5267694
thanks in advance

**m3m5** · 28th February, 2012, 08:47 PM

mate you need post dump or ask to dealer, dealer i think is 18 euro

**elmaalouf** · 28th February, 2012, 08:59 PM

hello friend thank u for ur answer but i am asking for the security code to can reset the ecu with my op-com and not the pin code to program the keys
thanks

**gregk** · 28th February, 2012, 09:07 PM

Originally Posted by elmaalouf

hello friend thank u for ur answer but i am asking for the security code to can reset the ecu with my op-com and not the pin code to program the keys
thanks

Security code to reset ecu is same as pin number to program keys so m3m5 is right. You will have to go to dealers with new ecu chassis number and car registration number to get pin code for new ecu:: On some astras I think it's 1.6l you can get a pin code with opcom. Do a search on it it's in garage section. Other than that you will need a dump from immo ring/antenna around ignition switch to get the code. Immo ring has to be from same car new ecu came from.

**elmaalouf** · 28th February, 2012, 09:29 PM

I got the pin code from the immo dump and try it not the same and its lohic cuz the ecu is from another car so i dont know what can i do to reset the ecu any help pls?

**ninja123** · 28th February, 2012, 09:31 PM

gregk is correct, go back to scrap yard and get ring from aroun ign lock, read tms and post dump, you will get your code, or....

if its a 1.6cc petrol, you can read pin code from ecu with op com, check for details on lupu sandu's posts.

ninja

**gregk** · 28th February, 2012, 09:35 PM

have a read thru this post it's for Y17DT ECU
http://www.digital-kaos.co.uk/forums...l-immo-195124/
And if engine is Z16SE

Originally Posted by schumy1502

on the Z16SE the pin code can be extracted with opcom 090420 and then can be reset

**gregk** · 28th February, 2012, 09:47 PM

Originally Posted by elmaalouf

I got the pin code from the immo dump and try it not the same and its lohic cuz the ecu is from another car so i dont know what can i do to reset the ecu any help pls?

Also if ecu locked you out you'll need to leave ignition ON any thing from 15min to 24hr for ecu to allow you to put code in again.
Have you got pin code from your original car as well???
If yes you can re-set new ECU providing you have a good pin code for original ecu and new ecu.
I remember having problem reseting my ecu in my astra I had both codes for my car and new ecu but none worked. What I had to do is Virginise my immo ring first , then I had to code immo ring with new ecu's pin only then I could virginise ECU and immo ring. After that I wrote original pin to ECU and immo ring so that I could use my original keys and immo chip. Hope you get what I'm trying to say.