air conditioning NISSAN ALTIMA HYBRID 2008 L32A / 4.G First Responders Guide

- 3-
Foreword
Nissan released theNissan Altima Hybridin North America in January of 2007. The Nissan Altima Hybrid runs
onconventional gasolineand a traction motor. The basic vehicle systems and featuresof the Altima Hybrid are
the same as those of the conventionalAltima, except where noted in this guide. This First Responder’s Guide
was published to help educate and assist first responders inthe safe handling of the Altima Hybrid and its
technology.
A high voltage batteryis used to power thetractionmotor, generator, electricair conditioningcompressor,
voltage converter, and inverter unit. A separate 12volt battery is used to power other electrical devices such as
the radio, horn, headlamps, and instrument cluster gauges. A number of safeguards have beendesigned to
ensure that the high voltage Nickel Metal Hydride (Ni-MH)battery is kept safe and secure in the event of an
accident.
TheAltimaHybridutilizes both low and high voltagesystems:
Low voltage system

- 6-
Engine Compartment
The engine compartment of the Altima Hybrid houses an aluminum alloy 2.5 liter gasoline engine, the high
voltage harnesses, fuse/fusible link box, fuse block, inverter unit, transaxle and electricair conditioning
compressor.
Engine compartment components and locations
1.Fuse/Fusible link box2.Fuse block3.Inverter unit
4.High voltage harness (orange)5.Transaxle6.Electricair conditioning
compressor
7.Gasoline engineA.HV electrical connector:Vehicle front

- 8-
Hybrid SystemLocations and Descriptions
ComponentLocationDescription
1. ElectricAir
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 of34 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