Toyota Corolla (E170): When the TRAC or VSC system is operating

The slip indicator light will flash while the TRAC or VSC system is operating.

Disabling the TRAC system

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    Circuit inspection
    1 Check d squib circuit(airbag sensor assy center – horn button assy) Disconnect the negative (–) terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connectors between the airbag sensor assy center and the horn button assy.  connect the ...

    Overhaul
    1. Remove roof headlining assy 2. Remove sliding roof glass sub–assy  using a torx wrench (t25), remove the 4 screws the sliding roof glass.  pull the glass upward to remove it. 3. Remove sliding roof weatherstrip 4. Remove sliding roof drive gear sub–assy Notice: ...

    On–vehicle inspection
    1. Check battery electrolyte level Check the electrolyte quantity of each cell (maintenance–free battery).  If under the lower level, replace the battery (or add distilled water if possible) and check the charging system.  check the electrolyte quantity of each cell ...