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BRC-20 < SYSTEM DESCRIPTION > [VDC/TCS/ABS] SYSTEM CONDITIONS FOR INDICATOR LAMP ILLUMINATION • Turns ON when VDC and TCS functions are switched to non-operational status (OFF) by VDC OFF switch. • Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes. CONDITIONS FOR WARNING LAMP ILLUMINATION Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes. Component Function Pump Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure. Motor Activates the pump according to signals from ABS actuator and electric unit (control unit). Cut valve 1 Shuts off the ordinary brake line from master cylinder. Suction valve 1 Supplies the brake fluid from master cylinder to the pump. ABS IN valve Switches the fluid pressure line to increase or hold according to signals from control unit. ABS OUT valve Switches the fluid pressure line to increase, hold or decrease according to signals from control unit. Return check valve Returns the brake fluid from brake caliper and wheel cylinder to master cylinder by bypassing orifice Reservoir Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreas- Pressure sensor Detects the brake fluid pressure and transmits signal to ABS actuator and electric unit (control unit). Condition (status) VDC OFF indicator lamp SLIP indicator lamp Ignition switch OFF OFF OFF For approx. 1 second after the ignition switch ON ON Approx. 1 second after ignition switch is OFF OFF When VDC OFF switch is ON (VDC function ON OFF VDC function is malfunctioning OFF ON TCS function is malfunctioning OFF ON Condition (status) ABS warning lamp Brake warning lamp Ignition switch OFF OFF OFF For approx. 1 second after the ignition switch ON ON Approx. 1 second after ignition switch is OFF OFF After engine starts OFF OFF When parking brake operates (parking brake OFF ON When brake fluid is less than the specified OFF ON VDC function is malfunctioning OFF OFF TCS function is malfunctioning OFF OFF ABS function is malfunctioning ON OFF EBD function is malfunctioning ON ON Brake limited slip differential (BLSD) function OFF OFF |