Vauxhall Vectra C PIN code hacking
Today I faced with a serious problem on a Vauxhall Vectra C 2.0 diesel 2002 year car, for some reason the transponder in the ignition key was not recognized by the car and it refused to start. After making the diagnostic with my diag tool I recognized the problem, ecu is locked because the immobilizer can’t recognize the code from the key.
The main focus in this text is how to find the “magic number” which opens all the magic to program a new key to the car and not how to add new key. Maybe that comes in some other article. In the absence of a tool to read the PIN code from the ecu or the dash through more convention situation, through the OBD connector, I decide to make the stuff manually.
Here we go:
We need to take out the dash board and completely disassemble it to find the 93C66 eeprom. In that small eeprom is the “magic number” what is called PIN code and is needed by tools to add/program new key to the car.
To read this type of eeprom you can use any compatible programmer, or even you can make one by yourself in seconds. This is a simple eeprom and very comfortable to work with it.
After you read the content from this eeprom look on the offset: 1E9 to 1EC at that offset you will find the PIN code what you will need to enter whenever you will add a key to the car.
Here is a picture of the real situation:
This is only valid on this type of car, but the same method can be used on any other cars too. The PIN code is on some other location or maybe another type of eeprom is used, but the idea is the same. So, no expensive tools are needed to get the PIN code from the car. The PIN code can be extracted from the radio or from the GID display or ECU etc.
If you take out the radio, it would be nice if you have the unlock code for the radio. Otherwise your car radio will be locked and you have to unlock it.
I hope you enjoy this tutorial and will save lot of repair time.
This article was prepared for you by Christian Robert Adzic from Novi Knezevac-Serbia.
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