I changed my halogen bulbs with led with canbus when i start my car all bulb flashing 2 or 3 times some technician says it is bulb check can i solve this 

Easy solution; put the correct bulbs back in. 

as Pete said, pop the original bulb types back in. 

putting leds into a headlight unit not designed for the way the light is delivered (multiple sources instead of one centred halogen point) causes the light to be reflected out badly, causing scatter - so poorly lit areas of road for you the driver, and also glare for on coming drivers. i could explain the sciency bit about parabolas and focal points but im pretty sure its been covered 100+ times previously

 

 

Yeahbut them is yellow innit!

Most LED bulbs that say they are can-bus are not and will bring up an alarm.
In the UK since last year putting LEDs in a headlight designed for halogen is an MOT fail.

7 hours ago, Urrell said:

Most LED bulbs that say they are can-bus are not

 

Thats because its a meaningless term so nothing could be!

 

Its like "Heavy duty" or "CE" etc, anything they can make up to convince the unwary to buy.

15 hours ago, Bassem82 said:

I changed my halogen bulbs with led with canbus when i start my car all bulb flashing 2 or 3 times some technician says it is bulb check can i solve this 

I cant see what car do you drive so i will general reply.Led bulbs are flashing because control unit is testing all bulbs,you can fix that by turning off bulbs chech on VCDS.I agree with colleauges about dazzle inbound traffic so i would recommend you to retrofit 

OSRAM LED.At least it passes German TÜV