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HOMESERVICE MANUALSTOYOTA2004CELICA GT, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 261 (INTRODUCTION)PRECAUTIONS FOR ALL OF VEHICLESFOR VEHICLES EQUIPPED WITH CONTROL (VSC) SYSTEM
2004 Toyota Celica GT, Standard

For Vehicles Equipped With Control (VSC) System

2004 Toyota Celica GT, StandardSECTION For Vehicles Equipped With Control (VSC) System
WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • Even if TAC is initially OFF, it automatically becomes ON when the vehicle speed becomes about 19 mph or more. Therefore, please drive in the test mode to avoid dangerous situations caused by the TRAC control
  • VSC/ABS may fail when the vehicle is driven on the two-wheel chassis dynamometer. Therefore, after driving on the chassis dynamometer, please clear DTC before normal driving. Please refer to PRE-CHECK step d  or e  for the method of clearing DTC.
  • Fasten the vehicle with the lock chain.
  1. Confirm VSC System Is Off 
    1. Turn the ignition switch OFF.
    2. Using SST, connect terminals Ts and E1 of DLC3. SST 09843-18020.
      Fig 1: Locating Terminals Tc, Ts & CG Of DLC3
      G01118731Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Start the engine.
    4. Check that the VSC TRAC warning light blinks.
      Fig 2: Locating Brake System Instrument Panel Lights
      G01118720Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. After the measurement, remove the SST and restart the engine. At this time make sure that the VSC TRAC warning light is off.
  2. Notice For VSC Operation 
    1. Remove and reinstall of VSC-related components may misadjusted them. Do not remove or reinstall them without necessary
    2. When conducting VSC-related operations, do not fail to make sure that the preparation and the finishing of the operation are all performed in accordance with the direction in this text.
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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.