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Fail-Safe Chart

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
  1. FAIL-SAFE FUNCTION 
    1. When communication fails in any of the CAN bus lines (communication lines) due to a short circuit or other causes, the fail-safe function, which is specified for each system, operates to prevent the system from malfunctioning.
    2. The fail-safe function activates on each system when communication is not possible. (For further details, see the pages for each system.)
      FAIL-SAFE CHART

      Function ECM Gateway ECU Translate ECU Condition when communication is impossible DTC detection (Driver detectable)
      VSC Control (Controls driving force while VSC is in operation) ◦ - • VSC function stops Detectable (Light comes on)
      VSC Control (Control VSC / TRC engine output) ◦ - • VSC function stops Detectable (Light comes on)
      Meter Display (Displays operation condition and DTCs) ◦ • ◦ Light does not come on or remains on Can be recognized with abnormal lighting of the light
      HINT:
      • •: Control master
      • ◦: System related
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