Anyone have any problems with PATS?  My 2006 will periodically lock me
out from starting the car.  It's definitely PATS.  The dealer has
replaced (or at least they said they did) the reader, still same
problem.  It's hard to correlate what causes the problem - but I think
it is heat related.  Once in a while I get the PATS symbol on the dash
that the starting circuit is disabled and I cannot start the car.  It
is always after the car has sat in the sun for some time.  If I wait
until the day (and the car) cools off, it will start no problem.  It
is very intermittent but it causes me to not trust the new car I
bought.  The dealer cannot figure it out.  I live in FL.

Any insight would be very welcome.  How does PATS work?  Wiring
diagrams?  etc.

Thanks.