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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 electric air conditioning
compressor.
Engine compartment components and locations
1. Fuse/Fusible link box
2.
Fuse block 3. Inverter unit
4. High voltage harness (orange) 5.
Transaxle 6. Electric air conditioning
compressor
7. Gasoline engine A.
HV electrical connector : Vehicle front
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DANGER: •
The high voltage system may remain powered for up to 10 minutes after the vehicle is shut
off.
•
The high voltage battery retains high voltage at all times.
High Voltage Safety
High Voltage Safety System
The high voltage safety system is intended to help keep vehicle occupants and emergency responders safe
from high voltage electricity.
• A high voltage fuse provides short circuit protection inside the high voltage battery.
• The high voltage safety system is insulated from the metal chassis so there is no possibility of electric
shock when touching the chassis.
• Positive and negative high voltage power cables are connected to the high voltage battery and are
controlled by normally open system main relays (SMR1 and SMR2). When the vehicle is shut off, the
relays stop electrical flow from leaving the high voltage battery.
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Alternative High Voltage System Shut Down Procedure
NOTE:
If the service disconnect procedure cannot be performed, the following alternative shut down procedure is
acceptable.
A. Locate the fuse/fusible link box (1) under the hood near the driver
side strut tower (2).
• : Vehicle Front
B. Remove the fuse/fusible link box cover and remove the IGCT 50
amp fusible link (1) from the fuse/fusible link box (2). If the correct fuse
cannot be recognized, pull all the fuses in the fuse/fusible link box.
