System Description: Description
The automatic 12V battery charge control is a control to reduce the frequency of battery discharge by automatically charging the 12V battery in case the 12V battery voltage is low when the key switch is turned to ON or the vehicle is left unattended for a long time.
When VCM judges a need for automatic charge, VCM controls the DC/DC converter and the system main relay and charges the 12V battery using the Li-ion battery power.
For 12V battery charge control during READY condition, refer to SYSTEM DESCRIPTION .
| Vehicle state | 12V battery charge | Shift position | |
|---|---|---|---|
| READY | Always charged. | Any position | |
| Normal charge ON | "P" position only | ||
| Quick charge ON | |||
| Climate Ctrl. Timer or remote climate control ON | |||
| Power switch ON | Automatically started when 12V battery voltage is low. | ||
| Power switch OFF | Charge for 4 minutes when the vehicle is not used for a long time. | ||
NOTE:
When any of the following operations is performed, the 12V battery automatic charge control is canceled: 1) Vehicle to the READY state, 2) Normal charge, 3) Quick charge, 4) Climate Ctrl. Timer or remote climate control ON.