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Home >> Ford >> 2012 >> Mustang Base, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Automatic Transmission - 5R110W (TORQSHIFT(R)) -- F450 & F550 Super Duty) >> Description & Operation >> Transmission Electronic Control System >> Transmission Control Switch (TCS)

Transmission Control Switch (TCS)

WARNING: This page is about a different car, the 2012 Ford F550 Super Duty and 2012 Ford F450 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.

The TCS or (O/D OFF switch) is a momentary contact switch located on the end of the selector lever. When pressed, the O/D OFF switch sends a signal to the PCM allowing automatic upshifts that include 5th gear. Overdrive or 6th gear, is disabled during O/D OFF mode. Pressing the O/D OFF button again restores automatic upshifts from 1st through 6th gears or the next ignition cycle.

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