Grand Marquis V8-4.6L Flex Fuel (2010)
Transmission Mode Switch: Description and Operation
ENGINE CONTROL COMPONENTS
Transmission Control Switch (TCS)
The TCS signals the PCM with VPWR whenever the TCS is pressed. On vehicles with this feature, the TCIL illuminates when the TCS is cycled to
disengage overdrive.
Typical Stalk Mounted TCS
Typical Shift Selector Lever Mounted TCS
