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Home >> Toyota >> 2001 >> 4Runner Base >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System W/VSC >> System Testing >> Test J: VSC Off Indicator Light, Center Differential Lock Switch Circuit (4WD) >> Circuit Description
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Circuit Description

This is the VSC control main switch. When the center differential is locked, VSC control goes off and the VSC OFF indicator lights up. Also, the VSC OFF indicator light is "ON" when the VSC system is at the fail safe control.