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Home >> Toyota >> 2013 >> Prius Two >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Vehicle Proximity Notification System (Diagnostics & Circuit Tests) (Except Plug-In) >> Vehicle Proximity Notification System >> Circuit Tests >> Stop Light Switch Circuit >> Description
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Stop Light Switch Circuit: Description

The vehicle approaching speaker controller detects brake operation by monitoring the signal from the stop light control ECU assembly. Vehicle approaching speaker operation is enabled when the vehicle approaching speaker controller receives a signal from the stop light control ECU assembly indicating that the brakes are not applied.

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