My 99 TL started idling very rough all of a sudden & the check engine light came on the TCS. So, I drove to Auto zone & the codes showed numerous misfires of the #6 then #1, #4 cylinders. I perform a search on the site & came up with the exact same problem I have with the cylinder misfiring,caused by a bad ignition coil & causing the codes. My #6 coil was bad, replaced & got Auto Zone to reset codes and everthing is fine. Thanks for a very good site!