Transmission Control Switch (TCS) Test
WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2011 Mercury Mariner, 2011 Lincoln Navigator L, 2011 Lincoln Navigator, 2011 Lincoln MKX, and 2011 Lincoln MKT. However, it is still accessible from the selected car via links, so may be relevant.
The TCS test checks the ability of the EEC system to detect a change of state in the TCS. The switch is briefly cycled on all vehicles equipped with a TCS input. This is done during a KOER on demand self-test.