Component Description
| Unit | Description |
|---|---|
| Combination switch (lighting and turn signal switch) | Transmits the lighting switch signal to the BCM. |
| Combination meter | Receives a buzzer output signal from the BCM with CAN communication and sounds the buzzer. Receives the seat belt buckle switch signal from the seat belt buckle switch LH (driver seat) and transmits it to the BCM via CAN communication. Judges whether the parking brake is released using the vehicle speed signal and the parking brake switch signal, and sounds the buzzer if necessary. |
| BCM | Based on the signals received from various units and switches, transmits the buzzer output signal to the combination meter via CAN communication. |
| Front door switch LH | Transmits the front door switch LH signal to the BCM. |
| Seat belt buckle switch LH (driver seat) | Transmits the seat belt buckle switch LH (driver seat) signal to the combination meter. |
| Parking brake switch | Transmits the parking brake switch signal to the combination meter. |
| ABS actuator and electric unit (control unit) | Transmits the vehicle speed signal to the combination meter via CAN communication. |
Scheme 36
DESCRIPTION
- The buzzer for the warning chime system is installed in the combination meter.
- The buzzer sounds when the combination meter receives a buzzer output signal from the BCM.
- The BCM receives signals from various units and transmits a buzzer output signal to the combination meter with CAN communication line if it judges that the warning buzzer should be activated.
Scheme 37
With ignition switch in OFF or ACC position, driver door open, and lighting switch in 1st or 2nd position, the light warning chime will sound.
- BCM detects ignition switch in OFF or ACC position, front door switch LH ON, and lighting switch in 1st or 2nd position. And then transmits buzzer output signal (light reminder warning chime) to combination meter with CAN communication line.
- When combination meter receives buzzer output signal (light reminder warning chime), it sounds the buzzer.
WARNING OPERATION CONDITIONS
If all of the following conditions are fulfilled
- Lighting switch is at 1st or 2nd position
- Ignition switch is at OFF or ACC
- Front door switch LH is ON
With ignition switch turned ON and driver seat belt unfastened, seat belt warning chime will sound for approximately 6 seconds.
- BCM receives seat belt buckle switch LH (driver seat) signal from combination meter via CAN communication.
- BCM detects ignition switch turned ON and seat belt buckle switch LH (driver seat) is ON, and then transmits buzzer output signal (seat belt warning chime) to combination meter via CAN communication.
- When combination meter receives buzzer output signal (seat belt warning chime), it sounds the buzzer.
If all of the following conditions are fulfilled
- Ignition switch OFF-->ON
- Seat buckle switch LH (driver seat) is ON (driver seat belt not fastened)
- The combination meter receives the vehicle speed signal from the ABS actuator and electric unit (control unit) via CAN communication line.
- The combination meter judges whether the parking brake is released using the parking brake switch signal from the parking brake switch, and sounds the warning buzzer if necessary.
If all of the following conditions are fulfilled
- Vehicle speed is approximately 4.3 MPH (7 km/h) or higher
- Parking brake switch ON
- The buzzer for warning chime system is installed in the combination meter.
- The combination meter sounds the alarm buzzer based on the signals transmitted from various units.
Transmits a seat belt buckle switch LH (driver seat) signal to the combination meter.
- The parking brake warning buzzer sounds continuously during vehicle travel though the parking brake is released
- The parking brake warning buzzer does not sound at all even though driving the vehicle with the parking brake applied.
Light reminder warning does not sound even though headlamp is illuminated.
- Seat belt warning does not sound even though driver seat belt is not fastened.
- Seat belt warning sounds even though driver seat belt is fastened.