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 BMW 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 BMW 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.

Additional information: BMW CAS Maintenance Tips:

Connect BMW 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.

Tip 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 BMW model of the same year.

Tip 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.