NISSAN 2009 Altima Hybrid - First Responder's Guide - Manual (Page 8)

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Hybrid System Locations and Descriptions
Component Location Description
1. Electric Air
Conditioning
Compressor Engine compartment, front
passenger side Electric motor driven compressor supplied with 245 volts
DC.
2. Electric Power
Steering Engine compartment, on
steering rack A 42 volt DC assist motor is used for the electric power
steering (EPS) system.
3. EPS DC/DC
Converter Trunk area, mounted to top
of high voltage battery Converts 245 volts DC (high voltage) to 42 volts DC (low
voltage) for the EPS.
4. High Voltage
Battery Trunk area, mounted to
cross member and behind
rear seat 245 volt DC Nickel Metal Hydride (Ni-MH) battery
consisting of 34 low voltage (7.2 volt) modules connected
in series.
5. DC/DC
Converter
Trunk area, under front left
cover of the high voltage
battery Converts 245 volts DC (high voltage) to 12 volts DC (low
voltage) for charging the 12 volt battery.
6. Service
Disconnect
Trunk area, on the
passenger side of the high
voltage battery Used to disable the high voltage system.
7. High Voltage
Harnesses •
Trunk area, on high
voltage battery and
EPS DC/DC converter
•
Under passenger side
rear seat and floor pan
•
Engine compartment,
on rear, driver side and
front
Orange colored power cables carry high voltage direct
current (DC) between the high voltage battery, EPS
DC/DC converter, inverter unit, and electric air
conditioning compressor. There are two cables which also
carry 3-phase alternating current (AC) between the
inverter unit and transaxle.
NOTE:
High voltage cables under the vehicle floor are encased in
a black plastic protector.
8. Transaxle
Engine compartment, on
driver side Contains a traction motor and generator used to drive the
front wheels and recharge the high voltage battery.
9. Inverter Unit Engine compartment, front
driver side Changes the 245 volts DC from the high voltage battery to
3-phase 650 volts AC to power the transaxle. The inverter
unit also changes AC electricity from the transaxle to DC
that recharges the high voltage battery.