Transmission Mode Switch: Description and Operation
Transmission Control SwitchTransmission Control Switch (TCS):
Transmission Control Switch (TCS):
The Transmission Control Switch (TCS) signals the PCM with keypower whenever the TCS is pressed. On vehicles with this feature, the Transmission Control Indicator Lamp (TCIL) lights when the TCS is cycled to disengage overdrive. The operator of the vehicle controls the position of the TCS.