LDWS WARNING ALARM

id092200029600

Purpose

• The LDWS warning alarm warns the user of a possible lane departure.

Function

Without audio unit

• If the instrument cluster receives a warning sound request signal from the FSC, is sounds the LDWS warning alarm using the buzzer in the instrument cluster.

• The LDWS warning alarm patterns are as shown in the figure.

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With audio unit

• For the LDWS warning alarm on vehicles with an audio unit, refer to LANE DEPARTURE WARNING SYSTEM (LDWS).

Construction

• The LDWS warning alarm sounds using the buzzer built into the instrument cluster.

Operation

With audio unit

1. The instrument cluster receives (1) the warning sound request signal from the FSC.

2. The instrument cluster turns the transistor on (2) based on the warning sound request signal.

3. When the transistor turns on, a ground circuit with the alarm is established and the alarm sounds (3).

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With audio unit

• For operation with vehicles having an audio unit, refer to LANE DEPARTURE WARNING SYSTEM (LDWS).

Fail-safe

• If a CAN transmission error occurs with the audio unit, it determines that the audio unit is malfunctioning. If the instrument cluster receives a warning sound request signal based on the determination that the audio unit is malfunctioning, the LDWS warning alarm is sounded using the buzzer built into the instrument cluster.