Intelligent Battery Sensor (IBS): Notes

The IBS sends the calculated battery values to the ECM via the BSD. The IBS calculates changes in battery SoC/SoH based on information received from the ECM on the battery during the period of time between engine "OFF" and deactivation of the ECM main relay. After the ECM main relay has been switched off, the IBS continues to constantly observe the SoC of the battery.