we just checked out the codes for transmission! That was 1231! It is Transmission Speed Sending unit! It is the same Speed i can see in my board when Im driving?? After we had finished the checking every time i start the engine there is no more fault code, but it comes when im trying to drive in D! Fault code comes when my engine gets approximately 3000rpm and gets in to the 3rd gear, only then all lights are blinking! We are not sure that its because of that Speed Unit! We think its technical problem in transmission!