This is a guide on how to use Launch X431 IMMO Elite to add a key for BMW CAS3+ by OBD. It needs to backup key data at first, next to learn key. The procedure also applies to X431 IMMO Plus & X431 IMMO Pro. Read this article carefully to learn how easy it was.
Procedure
Step1. Backup Key Data
IMMO >> BMW
Connect diagnostic connector and X431 IMMO Elite at the same time.
Click "OK".
Anti-theft key matching >> CAS3/CAS3+ IMMO >> Key operation >> Key data operation >> Backup key data
Use the function to backup CAS key data.
Remark: It is suggested that the CAS original key data should be backed up with the function before key learning.
Reading key data…
Reading RAM data…
Take the key out from the ignition switch!
If the key is a smart one, please put it outside the vehicle.
Click "OK" directly if there is no key in the ignition switch.
Backup >> Save key data file.
Key information backup successfully!
Step2. Learn Key
Click "Key learning".
The current CAS type is an encrypted version. Are all keys lost? No
Please insert a working key into the ignition switch and press Start button!
Take the key out from the ignition switch!
If the key is a smart one, please put it outside the vehicle.
Click "OK" directly if there is no key in the ignition switch.
Key data read successfully.
Whether to save key data? No
Select an blank key position: Key 8 >> Key generated by programmer
Please put the new key to be learned into the X-PROG 3 programmer!
Is the current key a smart one? No
Dealer key is generated successfully.
Please try to start the vehicle.
If the newly generated key cannot start the vehicle, please execute DME synchronization or DLE synchronization function according to the situation.
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