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Data monitor item Contents Data monitor (Reference) Check items for malfunction Condition Reference value tion PARK BRAKE SW Parking brake status Parking brake activated ON Parking brake switch cir- Parking brake not activated OFF OFF SW VDC OFF SW VDC OFF switch ON ON VDC OFF switch circuit VDC OFF switch OFF OFF ABS WARN LAMP ABS warning lamp sta- When ABS warning lamp is ON ABS warning lamp circuit When ABS warning lamp is OFF OFF LAMP VDC OFF indicator When VDC OFF indicator lamp ON VDC OFF indicator lamp When VDC OFF indicator lamp OFF SLIP LAMP SLIP indicator lamp When SLIP indicator lamp is ON SLIP indicator lamp circuit When SLIP indicator lamp is OFF FR LH IN SOL Solenoid valve opera- Actuator (solenoid valve) is ON Solenoid valve and circuit When the actuator (solenoid OFF USV [FR-RL] VDC switch-over sole- When the actuator (switch-over ON Switch-over solenoid valve When the actuator (switch-over OFF V/R OUTPUT Actuator relay acti- When the actuator relay is ON Actuator relay and circuit When the actuator relay is not OFF M/R OUTPUT Actuator motor and When the actuator motor and ON Actuator motor, motor When the actuator motor and OFF GI MA EM LC EC FE AT AX SU ST RS BT HA SC EL IDX TROUBLE DIAGNOSIS — INTRODUCTION VDC Control Unit Input/Output Signal Standard (Cont’d) BR-117 |