Help: Car starts and then dies immediatly. (flashing symbol of car with key under)

[ridelikeme]

just as the description says.
i removed the battery cables to do some maintenace, and when i tried to start the car back up it was in safe mode. so i used my code and that only reset the stereo. the car starts up fine, but then dies right away. there is a flashing symbol of a car with a key under it. and i have no idea what it is

[[email protected]]

It is you immobilizer kicking in.

You will have to relink the keys to the car since you disconnected your battery. Right now your remote should not work to lock/unlock your car.

IIRC to relink the remote you press the top button while turning your key to position one and hold for 5 seconds.

[ridelikeme]

that did not work Winston, but thanks for the attempt. do you know if our car has immo 1 of 2, im going to assume immo 2. however i would like to be sure before starting

[[email protected]]

I believe we have version 2 in our B6's

[gdawg'05a4]

First unlock and lock the door with the key manually. Once you get in, put it into the ignition but don't turn it. Press the lock and unlock button on the remote a few times.

[ridelikeme]

not working.. thanks though.. im going to have to recode through Vag-com i think. something is up for sure. is our IMMO located in the cluster or is it in a separate location?

[grandmast]

one of my keys will unlock/lock the doors but will not crank the engine. The ECU was replaced in the car before I bought it and the spare key was not sent off to the dealership before they swapped it.

Is there a way I can get the second key to work as well ?

[cmlteg]

Your keys lost synchronizacion with ur immobilizer, if u take it to the dealer bring all your keys they would synchronize them.

[A4 TSCHUSS]

it doesnt start after you try a 2nd or 3rd time? My car does the same thing like every other time I go to drive it. I have an appointment with the dealer in 2 weeks to get it fixed. It is the key reader which is part of the ignition switch where the key goes in. It controls the immobilizer and the keyless entry. Mine will start then die (flashing symol) then I turn key off and on again and it cranks. I asked a year ago and they said it would be like $350 for parts and labor to replace it.

[Pete4 1.8t]

Does it do this with all of the keys?