Altima L4-2.5L (QR25DE) Hybrid (2007)
servicing any portion of the high-voltage circuit, be sure to remove the service plug.
DC/DC Converter
The power source for auxiliary equipment of the vehicle such as the lights, audio system, and the air conditioning system (except electric inverter
compressor), as well as the ECUs, is based on a DC 12 V system. Because the HV battery outputs the nominal voltage of DC 244.8 V, the converter is
used to transform the voltage from DC 244.8 V to DC 12 V in order to recharge the auxiliary battery.