Circuit Operation
- The ETACS-ECU operates the following equipment or functions according to signal from the ignition switch (IG1):
- Ignition key reminder tone alarm function
- Light reminder tone alarm function
- Seat belt tone alarm function
- Power window timer function
- Sunroof timer function
- Seat belt warning light
- Headlight automatic shutdown function
- Turn-signal light
- Dome light dimming function
- Interior light automatic shutdown function
- Ignition key cylinder illumination light
- If the power supply circuit from the battery to the ETACS-ECU is open, this circuit is used as backup circuit.