GODIAG BMW CAS4 & CAS4+ Key Programming Test Platform
The GODIAG BMW CAS4 Test Platform is a professional bench connection and testing solution developed for automotive locksmiths, BMW maintenance technicians and CAS4/CAS4+ programming specialists.
It provides a convenient way to connect supported BMW CAS4 and CAS4+ modules outside the vehicle. When used with compatible key-programming equipment, it assists with key programming, module replacement, communication testing and CAS-to-key synchronization verification.
Main Features
• Designed for supported BMW CAS4 and CAS4+ immobilizer modules
• Allows convenient CAS module connection outside the vehicle
• Tests whether the CAS4/CAS4+ module can communicate correctly
• Checks synchronization between the CAS module and programmed key
• Supports key addition procedures with compatible programmers
• Supports all-keys-lost procedures with compatible equipment
• Assists with CAS4 and CAS4+ module replacement
• Supports reading and backing up data after the required preprocessing
• Simulates ignition and starting conditions on the bench
• Helps diagnose key-to-CAS synchronization problems
• Dedicated fast connectors provide a secure and reliable connection
• Reduces the risk of bending or damaging CAS communication pins
Supported Professional Operations
CAS Communication Testing
Before reinstalling a repaired or programmed CAS4/CAS4+ module in the vehicle, the platform can be used to confirm whether the module communicates correctly.
Key Synchronization Testing
The integrated key-sensing area and immobilizer indicator help verify whether the programmed key is correctly synchronized with the CAS module.
Key Addition
When connected to a compatible key programmer, the platform can assist with adding a new key to supported CAS4 and CAS4+ systems.
All Keys Lost
The platform can form part of an all-keys-lost programming setup when used with the appropriate programmer, software and valid module data.
CAS Module Replacement
It can assist professionals when replacing a damaged CAS4 or CAS4+ immobilizer module, including supported conversion or replacement procedures.
Off-Site Key Programming
The CAS module and associated ECU can be removed and sent to a professional locksmith for key programming and synchronization testing without requiring the complete vehicle to be present.
Compatible Equipment
Depending on the selected procedure, the platform can work alongside professional tools such as:
• GODIAG GT100 or compatible breakout equipment
• Xhorse VVDI2
• Xhorse VVDI BIM Tool
• Xhorse Key Tool Plus
• CGDI BMW
• Autel IM608
• Yanhua Mini ACDP
• Selected Lonsdor equipment
• Other compatible BMW CAS programming tools
Available functions depend on the programmer, software version, CAS hardware, processor type and selected operating method.
Platform Components
• DB25 female connector for connection to compatible GODIAG equipment
• Simulated ignition/start switch
• Immobilizer status indicator
• Key-sensing area
• Dedicated CAS4/CAS4+ power and CAN communication connector
• Dedicated CAS4/CAS4+ start-control connector
Typical Applications
• BMW CAS4 and CAS4+ bench testing
• Testing a repaired CAS module before installation
• Checking whether the CAS module communicates correctly
• Verifying CAS and key synchronization
• Adding a replacement key
• Supporting all-keys-lost procedures
• Backing up supported CAS data
• Replacing a damaged CAS4 or CAS4+ module
• Diagnosing a no-start condition caused by key/CAS mismatch
Package Includes
• 1 × GODIAG BMW CAS4 & CAS4+ Test Platform
• 1 × GODIAG OBD2-to-DB25 Cable
Important Notice
This product is a connection and testing platform. It is not a standalone key programmer and cannot independently generate keys, read encrypted data or complete programming operations.
A compatible BMW key programmer, suitable software and a regulated power supply may be required. Compatibility must be confirmed according to the exact CAS module, processor, vehicle model and programming device.
Professional Use Only
CAS programming and immobilizer work should be performed only by trained automotive locksmiths or electronic repair technicians. Always read and save a complete backup of the original module data before programming, replacement or modification. Confirm all connections against the correct wiring diagram before applying power.
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