2006 honda civic wont start or starts then shuts off green key flashes immobilizer bypass 

your welcome.

ouch, I was really scratching my head and it was hard to figure this out ....almost got me to the point of just selling for a loss as a parts car but luckily was able to figure this out.

spare might not work ...i tried mine and it didnt since the immobilizer lost pairing with the code. so neither keys worked.

@@JackofAllCarbinc you're exactly right. But I appreciate your knowledge. It saved from contacting a mechanic. Thank you again

if you have the green light and its a new battery ...issue is the immobilizer, First get that resolved then you can take your battery to get recharged, I had same issue since the car kept cranking and not powering on it drained my battery since car never turned on when the issue started and didnt allow the alternator to recharge battery. It can be a possibility that the alternator also went out but if it was me I would ......jump the car or get recharged then fix immobilizer if green light goes off but battery still dies then its either a bad battery or alternator.

your welcome

your welcome, hope it saved you some money on repairs.

I wonder if anyone has fixed their issue by replacing the MICU.

i believe he has to reset the immobilizer first then reprogram key...I had problems with honda too.... i got the run around telling me i had to contact honda corporate...blah blah . I went thru 3 different dealers and finally 1 gave me the code. It was the dealer I had previously serviced car and they had my vehicle on record showing it was under my name......Its not easy but its doable.....I had to convince them i could not get my car towed and needed code so i can take to them to repair. They were very hesitant but finally one manager gave it to me. Please keep us posted.

alot more expensive i would think

no es la llave ,,, tienes que acer reset all immobilizer and then reprogram a new key.

cost me 120.....troubleshoot new key reprogramming .

Honda dealer only

Is it the same as the code to reset the battery?

@@brittanyjeffrandolph7497 never heard of code to reset battery ....this code is only for bypassing the immobilizer.

@@JackofAllCarbinc I have no clue why I put battery 🤦 I meant code to reset the radio after you unhook the battery 🔋

@@brittanyjeffrandolph7497 lol I kinda thought you were talking about that or was someone trolling but the answer to that is absolutely not. The brake code is not really known to 99 percent of people. Believe it or not some Honda techs had no idea what i was talking about when i called the dealer but the older guys /managers know exactly what that is. Every honda and acura had these codes which allows honda to bypass the immobilizer for reasons like failure or back then if car payments were not made the dealer can repo the car without the need of a key. Of course that code will not be given to just anyone, you MUST prove that you are the legal owner of vehicle and have no debt on car. Radio code is completely diferent that only will unlock the access to your radio.

se tiene que reprogramar la llave para que conecte con el immobilizador. Alguien que ace copias tiene que aser reet all immobilizador i luego hacer copia de la llave para que conecte .