IN−42 − INTRODUCTION TERMS 42 Author : Date: TIS Total Information System For Vehicle Development T/M Transmission TMC TOYOTA Motor Corporation TMMK TOYOTA Motor Manufacturing Kentucky, Inc. TRAC Traction Control System TURBO Turbocharge U/D Underdrive U/S Undersize VCV Vacuum Control Valve VENT Ventilator VIN Vehicle Identification Number VPS Variable Power Steering VSC Vehicle Skid Control Vehicle Stability Control VSV Vacuum Switching Valve VTV Vacuum Transmitting Valve w/ With WGN Wagon W/H Wire Harness w/o Without 1st First 2nd Second 2WD Two Wheel Drive Vehicle (4x2) 4WD Four Wheel Drive Vehicle (4x4)