Motorcraft Home Technical Resources Home Non-Subscription Resources What's New Body Repair Manuals Diagnostic Tool Support OBDII Theory & Operation Paper/CD Manuals Quick Guides Tools & Equipment Membership Accounts My Shopping Cart Subscription Products Keycode Lookup Reprogramming & Initialization Service Publications Technical Service Bulletins Technical Training Purchase Subscription Ford Specific Acronyms # A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  0-9  (Indexed by Abbreviation) Acronyms Description TA Traction Assist TACH Tachometer TACM, TACMP, TACMN, Throttle Actuator Control Motor +/- used in the ETC system. TB Throttle Body. A device that controls airflow through the engine via a butterfly valve and has an air bypass channel around the throttle plate. TC 1. Traction Control. Combines anti-lock braking and axle torque reduction to control wheel slippage. 2. Turbocharger. TCC/TCCH Torque Converter Clutch. When energized, causes a mechanical engagement and disengagement of the Torque Converter Clutch. TCIL Transmission Control Indicator Lamp. Indicates that the TCS has been activated. TCS Transmission Control Switch. Modifies the operation of electronically controlled transmissions. TDC Top Dead Center Tear Tag The label attached to the PCM to identify its calibration. TFT Transmission Fluid Temperature. Indicates the temperature of transmission fluid. Thermistor A temperature dependent resistor, like that used in CHT and ECT sensors. Timing The relationship between spark plug firing and piston position expressed in crankshaft degrees before (BTDC) or after (ATDC) top dead center of the compression stroke. Torque converter A device which by its design multiplies the torque in a fluid coupling between an engine and transmission/transaxle. TP Throttle Position sensor. A potentiometer that provides throttle angle and rate information for the PCM. TP V Throttle Position sensor Voltage TP1 Throttle Position 1 TP2 Throttle Position 2 TR Sensor Provides information to the PCM on the transmission range selector position. TR V Transmission Range Voltage TR, TR1, TR2, TR3, T Transmission Range. The range in which the transmission is operating. Transaxle A device consisting of a transmission and axle drive gears assembled in the same case. Front-wheel drive and some all-wheel applications. Transducer A device that receives energy from one medium and transfers it to another. For example, thermal energy is converted to an electrical signal through a temperature probe. Transmission A device which selectively increases or decreases the ratio of relative rotation between its input and output shafts. Rear-wheel drive applications. Transmissions Transmissions/Transa TRO-N Transmission Range Output Neutral TRO-P Transmission Range Output Park TS1 Transmission Range Sensor - 1st TSB Technical Service Bulletin. Notifies technician of any known vehicle concerns, procedures, or general repair information. TSD Transmission Range Sensor - Drive TSR Transmission Range Sensor - Reverse TSS Turbine Shaft Speed. Indicates the rotational speed of the transmission turbine shaft.

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