How To Guide:
Source: LAUNCH TECH CO LTD
LAUNCH Operating Instructions for the Function of BMW CAS 4CAS4+Key Adding
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Operating Instructions for the Function of BMW CAS4/CAS4+Key Adding
Function introduction
Support the functions of Key Adding and All Lost for BMW CAS4/CAS4+Anti-Theft System Module, and 32-digit Engine ISN is required for CAS4+Immobilizer Module All Lost.
Device requirements
PRO and other Android devices of 431 products, X431-G/X431-G3 Immobilizer with key adapter;
Software requirements
BMW V50.54 and above
Steps
The function of CAS4 Immobilizer Module Key Adding is described as below:
1.1 Enter the software, and select [Anti-Theft System]
1.2 Click [OK]
1.3 Enter the Anti-Theft System, and you need to connect with X431-G/X431-G3 Anti-Theft key adapter to perform the next step
1.4 If you don't know the type of the Anti-Theft System, you can select [Intelligent Mode] to enter
1.5 Jump CAS4/CAS4+ Anti-Theft System to the corresponding Anti-Theft system menu
1.6 Click [Preprocessing], you need to preprocess the module to perform Read Anti-Theft data, Key Matching and more. If it has already been preprocessed, you can perform relevant functions. The ECU will be upgraded in this process, and files need to be downloaded online. Please connect to the network in advance
1.7 Make sure that vehicle power supply voltage stable, and then click [Yes]
1.8 After preprocessing succeeded, click [OK] button
1.9 After preprocessing succeeded, return to the function menu and click [Key Learning] function
1.10 After the key information successfully read, select the unused key position and click [Key Generated By Ignition Switch]
1.11 Read and display the password, and click [OK] button
1.12 Please place a new key close to vehicle coil, click [OK] button, and wait for key generation
1.13 The dealer key is successfully generated, please try to start vehicle