LIGHTS-ON INDICATOR LIGHT
id091800013400
Purpose
• The lights-on indicator light notifies the driver that the TNS (parking lights) are turned on.
Function
• When the instrument cluster receives the TNS (parking lights) signal sent from the front body control module (FBCM) via CAN communication, it turns the lights-on indicator light on.
• The instrument cluster flashes the lights-on indicator light when it receives a headlight malfunction signal from the front body control module (FBCM) or when the TNS (parking lights) operation signal cannot be received for a specified time.
• The lights-on indicator light flashes in the pattern shown in the figure.
Structure/Construction
• The lights-on indicator light is built into the instrument cluster.
Operation
Light switch operation
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1. When the light switch is moved to the TNS (parking lights) position, the start stop unit sends (1) a TNS (parking lights) signal to the front body control module (FBCM) via CAN communication.
2. The front body control module (FBCM) sends (2) the TNS (parking lights) signal to the instrument cluster.
3. The instrument cluster turns the transistor on (3) based on the TNS (parking lights) signal.
4. When the transistor turns on, a ground circuit with the lights-on indicator light is established and the lights-on indicator light turns on (4).
Malfunction detection
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1. The instrument cluster turns the transmitter on (2) intermittently when it receives (1) a headlight malfunction signal from the front body control module (FBCM) or when the TNS (parking lights) operation signal cannot be received (1) for a specified time.
2. The lights-on indicator light flashes (3) when the transistor is turned on intermittently.
Fail-safe
• Not applicable
