Turn ignition switch OFF and disconnect the battery negative (-) terminal.
Remove the audio unit.
(Refer to Body Electrical System -" Audio Unit")
Remove the DC/DC Converter after loosening the mounting bolt.
Install in the reverse order of removal.
After reconnecting the battery negative (-) cable, ISG function dose not operates until the system is stabilized, about 4 hours.
If disconnecting the battery negative (-) cable from the battery during repair work for the vehicle equipped with ISG function, Battery sensor recalibration procedure should be performed after finishing the repair work.
(Refer to Charging System - "Battery Sensor")