ENTRY AND START SYSTEM


  1. CONSTRUCTION


    1. The power management control ECU consists of the IG1 and IG2 relay actuation circuits, CPU, and hold circuit.

    2. The hold circuit is installed to prevent the power supply to the relays from being cut off when an abnormality occurs in the IG1 and/or IG2 relay actuation circuits during driving.

      A019QGME05

      Tech Tips

      The power management control ECU constantly stores the present power source mode in its memory. Therefore, if the power to the power management control ECU is interrupted due to the removal of the battery, the power management control ECU restores the power source mode after the battery is reconnected. For this reason, if the battery is removed when the engine switch is in any position other than off, the power will be restored to the vehicle at the same time the power is restored to the power management control ECU (by reconnecting the battery). Therefore, before removing or disconnecting the battery, make sure to turn the engine switch off.