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EVC-60 < SYSTEM DESCRIPTION > SYSTEM NOTE: • During automatic 12V battery charge, the charging status indicator blinks. • The automatic 12V battery charge control does not start within approximately one hour when the power switch is turned ON/OFF. POWER CUT OFF CONTROL INFOID:0000000010120567 SYSTEM DIAGRAM DESCRIPTION Because EV uses high voltage power, there is a risk of electric shock if the high voltage circuit is shorted to a body ground during a collision. To avoid such risks, if VCM detects a car crush information signal, VCM deac- tivates the system main relay to cut off the Li-ion battery from the high voltage circuit so that the risk of electric shock is reduced. When detecting a serious collision When receiving a car crash information signal from the air bag diagnosis sensor unit, VCM turns OFF the sys- tem main relay and quickly interrupts the high voltage circuit. In addition, VCM detects DTC P3137 and prohib- its the READY operation until the DTC is erased. NOTE: The collision detection level of VCM may differ from an actual vehicle damage state. When detection a minor collision When receiving a light crash judgment signal from the air bag diagnosis sensor unit, VCM turns OFF the sys- tem main relay and quickly interrupts the high voltage circuit. The READY operation becomes possible after a lapse of 90 seconds or more (VCM performs self shutoff) after the power switch is turned OFF. CAUTION: When bringing VCM into self shut off, never perform vehicle handling such as opening and closing of doors while the power switch is OFF. If some kind of vehicle handling is performed, then wait another 90 seconds or more from the time of the vehicle handling. NOTE: • The collision detection level of VCM may differ from an actual vehicle damage state. • When a collision occurs more than once during the same trip (no history of turning OFF the power switch), VCM judges “detection of serious collision” and prohibits the READY operation. Vehicle behavior by collision status JSCIA0499GB |