Vehicle Key Programmer Tool CAS3 Test Platform with LED Indicator for Maintenance Features： 1、Application: The CAS 3 key programmer tool is fully compatible with the CAS 3 system. Able to support a wide variety of models, it can easily handle any type of vehicle you may encounter. 2、High Efficiency: CAS test platform can help you quickly program new keys or transfer data from existing keys. It is able to complete a large number of tasks in a short period of time. 3、Easy to Use: CAS test platform tool has a user friendly interface, simple to use. You don't need any professional knowledge or skills to program with this tool. 4、Comprehensive: The CAS3 platform can program new keys and also read data from existing keys, including ID, EWS, IR, etc. It can also delete existing keys when needed, giving you full control. 5、Durable Material: Auto key programmer platform is made of premium ABS material, high temperature resistant, sturdy and durable, long service life. Specification： Item Type: CAS Test Platform Material: ABS CAS Test Platform: Fast check CAS and key working or not without connecting to car Update: This CAS cannot be updated Support System: No need to connect with computer, just follow the instruction steps show How does CAS Test Platform work? 1. Connect and test CAS3 2. Connect and test CAS2 3. Note: the red cable of CAS2 CAS3 should be plugged into the first pin of socket. 4. After the 12V power is connected, the power light ON and the LED light of the CAS test platform will continuously fast flash once a second, it indicates the CAS CPU work well, if the LED light not ON, it indicates CAS is abnormal and need to repair or change. 5. Insert key into CAS test platform mainframe and you will hear buzzer and see the CAS power adapter green indicator ON, it indicates the key and the CAS work well; otherwise it indicates the key is broken or the key doesn't program successfully. Additional Note: After CAS test platform is connected with the full new CAS3, the LED light will not ON, only after the EEPROM data is written into can the LED light on. CAS Test Platform help you find out where is the fault: Connect CAS test platform to CAS, and after connected with the power, the LED light on or not will help judge the where the fault is. 1. After connected to the power, the CAS test platform LED light on for a long time, it indicates the CPU FLASH data loss, advice you write into the FLASH data from another model of the same year. 2. After connected to the power, the CAS test platform LED light not ON, it indicates the CPU FLASH data is locked caused by the unstable programmer when writing data, you need to edit EEPROM data. 3. The CAS3 is broken when programming and can't start the car, then use CAS Test Platform to connect CAS, after connected to the power if the LED light on for a long time, it indicates the FLASH data missing and EEPROM data is locked. Package List： 1 x CAS Test Platform 1 x Wire Harness 1 x Board