Problem with LF antenna circuit

[Mellowyellow]

Today both key fob appeared to fail. Symtoms were no button on the fobs would work. Car would not start (No key detected error). After a bunch of reading on line the culprit appears likely to be LF antenna circuit. The car will start if either fob is pressed against the start button for a couple of seconds first.

Anyone ever hear of or experience this situation?

 

[KrackaC8]

Hate to state the obvious, but did you try replacing the fob batteries?

 

[Mellowyellow]

Replaced both batteries and checked main battery (12.7 volts).

 

[Mellowyellow]

Tried placing fobs on passenger seat and behind the seat in an attempt to connect to the other antennas. No luck.