Fail-Safe Chart
WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
- FAIL-SAFE FUNCTION
- When communication fails in any of the CAN bus lines (communication lines) due to a short circuit or any other causes, the fail-safe function, which is specified for each system, operates to prevent the system from malfunctioning.
- This function operates for each system when communication is impossible. (For further details, see the examples for each system.)
FAIL-SAFE FUNCTIONFunction ECM Skid Control ECU Steering Angle Sensor Yaw Rate Sensor Action when unable to communicate DTC detection (Driver detectable) VSC Control (Controls VSC/TRC engine output) - Rx Tx Tx VSC function stops Detectable (Lamp comes on) VSC Control (Controls VSC/TRC engine output) Rx or Tx Tx or Rx - - VSC function stops Detectable (Lamp comes on) HINT:
- Rx: Reception from each ECU (sensor).
- Tx: Transmission to each ECU (sensor).