Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2005TAURUS SEL, 4D SEDANREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1455 (AUTOMATIC TRANSMISSION - AUTOMATIC TRANSAXLE/TRANSMISSION - EXTERNAL CONTROLS)DESCRIPTION AND OPERATIONEXTERNAL CONTROLSTRANSMISSION CONTROL SWITCH (TCS)
2005 Ford Taurus SEL, 4D Sedan
Transmission Control Switch (TCS)
2005 Ford Taurus SEL, 4D SedanSECTION Transmission Control Switch (TCS)
WARNING: This page is about a different car, the 2010 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.
The Transmission Control Switch (TCS) control:
- is located on the end of the selector lever.
- The TCS is not removable from the selector lever. Install a new selector lever if a new TCS is required.
- is a momentary contact switch.
- commands the PCM to disengage or engage the Overdrive (O/D) function of the transmission.
- When the Overdrive (Circle D) selection is disengaged, the message O/D OFF will illuminate on the Instrument Cluster (IC).
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.