i hope you can help me.. my 2005 tl key light is flashing i replace the inmobilization sistem the one thats goes on the key and still nothing battery is new..the alarm does not open door knobs or make any sound trunk is not working with the remote..remote has a new battery...so im goig to try to replace the ecm and last the key..fuses are ok in the engine bay and the ones inside the car..any advise what could be the problem??

 

immoblizer needs to be paired/programmed to the ECM/ECU and also to the key. Same with the remote to the car.

 

This.

 

the locksmith has come to reprogram the ecm and the green key still blinking...he made a new key i change the inmobilizer..so my last bet is the ecm...or i misssing something more?

 

Maybe it's a bad sensor in the ignition switch that picks up the data/code from the key

 

SO IT HAS ANOTHER SENSOR??? I THOUGHT IT WAS JUST THE INMOBILIZER... SO THAT SENSOR ON THE PICTURE COULD BE THE PROBLEM??

 

Yes, Part no 14, Immoblizer unit:

COMBINATION SWITCH for 2005 Acura TL