MY CAR REMOTE STOPPED WORKING SUNDDELY THE KEY IS WORKING FINE AND I AM ABLE TO LOCK/UNLOCK/DRIVE IN MANUAL MODE. I HAVE CHANAGED BATTERY. I HAVE TRIED SYNCHRONIZATION AS PER CAR MANUAL. DID NOT WORK SO FAR. ANY RECOMMENDATIONS ARE WELCOME
I would start with the easiest thing first. In this case it would be the fuse SC23 located on fuse panel C. I’ll provide a wiring diagram of the Start/Access Circuit to give you an idea of what it looks like. You may need to check some of the wiring for good connections, etc. Also check to make sure the wiring for the Start/Access antenna is connected correctly. I wonder if you have a second set of keys you could try or have tried?