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Home >> Toyota >> 2012 >> Prius Plug-in >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 145 (Vehicle Proximity Notification System (Except Plug-In) (Diagnostics)) >> Vehicle Proximity Notification System >> Engine Oil Pressure Switch Circuit >> Description

Engine Oil Pressure Switch Circuit: Description

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The vehicle approaching speaker controller detects engine operation by monitoring the signal from the engine oil pressure switch assembly. Vehicle approaching speaker operation is disabled when the vehicle approaching speaker controller receives a signal from the engine oil pressure switch assembly indicating that the engine is operating.

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