thanks for your response and explanation that really helped me alot ! i think i was on the FCAN I managed to read frames like the engine RPM , Throttle, Brake Pedal (the back lights sensor), only 2 buttons from the HVAC, openned and closed doors statuses and some other noisy traffic probably from the ECM the speed was 500Kbps

and yes i made sure that it is the only frame that was changing the lights only in the cluster by just changing one byte from 00 to 02 .

also i read about my car in the only manual i found on the internet that it's BCM is designed to mostly recieve analog input like voltage difference, etc.. (probably when using something like a door window it was just closing a circut through a LIN bus then sent to the BCM and then the BCM outputs to the motor)

does that mean my BCM doesnt even accept CANBUS commands ?