INDICATOR UNIT

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Purpose

•  The indicator unit notifies the user of the following conditions.
―  Passenger's side seat belt fastened condition
―  Rear seat belt fastened condition
―  Passenger air bag deactivation (PAD) switch condition

Functions

•  The indicator unit turns the passenger's side seat belt warning light / rear seat belt warning light / rear seat belt indicator light on/off based on the request signal sent from the body control module (BCM).

Structure/Construction

•  The indicator unit is integrated with the sensor cover.
•  The indicator unit consists of the following parts.
―  Passenger's side seat belt warning light
―  Rear seat belt warning light
―  Passenger air bag indicator
―  Rear seat belt indicator light
―  Passenger air bag deactivation (PAD) ON indicator
―  Passenger air bag deactivation (PAD) OFF indicator
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Operation


Passenger's side seat belt warning light

1.  When the indicator unit receives (1) the passenger's seat belt warning light on request signal from the body control module (BCM) via LIN communication while the ignition is switched ON (engine off or on), it turns on (2) the transistor.

2.  When the transistor turns on, a ground circuit with the passenger's side seat belt warning light is established and the passenger's side seat belt warning light turns on (3).

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Rear seat belt warning light / Rear seat belt indicator light

1.  If a rear seat belt is not fastened within 60 s after the ignition is switched ON (engine off or on), the BCM sends (1) a rear buckle switch on signal to the indicator unit.

2.  When the indicator unit receives (1) a rear buckle switch on signal from the BCM, it turns the transistor on (2).

3.  When the transistor turns on, a ground circuit with the rear seat belt warning light is established and the rear seat belt warning light turns on (3).

4.  If the rear seat belt is fastened, the BCM sends (4) a rear buckle switch off signal to the indicator unit.

5.  When the indicator unit receives (4) the rear buckle switch off signal from the BCM, it turns the transistor on (5).

6.  When the transistor turns on, a ground circuit with the rear seat belt indicator light is established and the rear seat belt indicator light turns on (6).

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Passenger air bag indicator/Passenger air bag deactivation (PAD) ON/OFF indicator

•  For the passenger air bag indicator/passenger air bag deactivation (PAD) ON/OFF indicator, refer to [PASSENGER AIR BAG DEACTIVATION (PAD) SYSTEM]. (See PASSENGER AIR BAG DEACTIVATION (PAD) SYSTEM [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)