IMMO Vectra C 2007 CIM 93c76

[Milicija]

Hello, today I changed CIM module on Opel Vectra 2007, but now I can't start the car, the IMMO is blocking. I have tried to resolder the old CIM EEPROM 93c76 to new CIM, but no luck. Maybe I should change the main chip (i think it's motorola)?
Also I have red few threads and alot of people advice to read the pin code from 93c76, and then using OP-COM to add the key. Could anyone give me advice, or could tell me pin from my dump?

I attach my 93c76 dump: 271804

The CIM module code is 13132473 (DELPHI).

[TPS]

PIN must be 8203

regards

[Milicija]

Thank you very much, I will write later how things went :)

[Milicija]

UPDATE: today I tried to log in with OPCOM with the pin TPS supplied (8203) and in wont accept - incorrect pin. Maybe I did something wrong or I have red the EEPROM incorrectly...

Anyway, I have red old CIM EEPROM and I would like to get a pin from this EEPROM, because it is used in other modules. Also I read these EEPROMS with UPA-USB programmer and saw that i can chooose: 93c76 (1K x 8 bits) or 93c76 x 16 (512 x 16 bits). I dont know which one I really need for the pin so I made two copies which I attach: 272007272006.

I would really appreciate if someone would tell me the pin :)

[TPS]

pin must be 5636 , my FIRST pin is right

regards

[Milicija]

Thank you very much! , you help me again :) I will try tomorrow and let you know.

[Milicija]

Ok, today had some time to work on Vectra and the pin code that you gave me worked :), i reset the CIM, and then i wanted to program keys but it says failed. I think that i can't program old transponder chip which is PCF79, because I need new one, could someone confirm that?

[janusz21]

old transponder chip should be programmed but I did it tech2

[Milicija]

thank you for your reply, the exact chip number is pcf7946at, i have red that this chip is reusable, but opcom failed to program it, so dont know, i will wait for more anwsers and then will see, probably going to buy new transponder chip and try...

[gttuning]

Ok, today had some time to work on Vectra and the pin code that you gave me worked :), i reset the CIM, and then i wanted to program keys but it says failed. I think that i can't program old transponder chip which is PCF79, because I need new one, could someone confirm that?
after reset cim did you program car immobilizer pin to cim?

[Milicija]

Yes, I noticed that the old CIM was used with key which has pcf7946at transponder chip on the key circuit board and the "new-used" one was with older key (I opened key and saw that the chip is lost), which has transponder chip which is not soldered in the key circuit...
I'm trying to program old CIM key with the "new" CIM.

[dune85872005]

buy new transponder precoded from dealer a litle help for opcom for you https://www.youtube.com/watch?v=HUveKBFBTq0

[Milicija]

Quick update: finished immo programming. Bought pcf7946at transponder and programmed it... Car now starts but central locking doesnt work, there are no options to resync key etc... Read few posts and found that you need to program prepared transponder chip for central locking to work.

Anyone know how to solve this problem?

[bajad]

now is needed new chip ( with preprogrammed RF ) , if chip programmed to car without RF you can change nothing