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The transmitter may not communicate or become out of synchronization with the reciever if any of the following situations occurs:
1 The transmitter battery is disconnected
2 The vehicle battery is disconnected
3 The transmitter and the vehicle are seperated for 2 weeks or more.
4 The reciever is disconnected.
Are you sure you are doing the Synchornization correctly? Does your Tire monitoring still work? If it doesn't, then your reciever isn't working.
You can also connect a scan tool to check for RFA communication. Any RFA DTC's?
Did the syncro stuff, still no change. even that i have a new batterie, fob still only works when standing next to the car. Tried all kind of things, still only working when i am next to the driver side rear of car.
Thanks for the info about the sticky post. I guess i will check that ground connection...