Monitor Description

The skid control ECU assembly monitors the voltage at +BI terminal.

When the main relay is instructed to be on and the voltage at +BI terminal is within the range of an open circuit malfunction (voltage is practically equal to that when off), or when the main relay is instructed to be off and the voltage of the +BI terminal is within the range of a short circuit malfunction (voltage is practically equal to that when on), an open circuit or short circuit is judged respectively and the MIL is illuminated and stores a DTC.