Transmission Control Switch (TCS)

2005 Ford Crown Victoria Special EditionSECTION Transmission Control Switch (TCS)

The transmission control switch (TCS):

  • Is located in the shifter handle.
    • The TCS is removable from the gearshift handle without disassembly of the console or shifter unit.
  • Is a momentary contact switch.
  • Commands the powertrain control module (PCM) to disengage or engage the overdrive function of the transmission.
    • When overdrive (D) is disengaged, the message O/D OFF will illuminate on the instrument panel.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
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  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.