User Manual - Page 494

For 2021 ALTIMA SEDAN.

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CAUTION
Do not ground accessories directly to
the battery terminal. Doing so will
bypass the variable voltage control
system and the vehicle battery may
not charge completely.
Use electrical accessories with the
engine running to avoid discharging
the vehicle battery.
Your vehicle is equipped with a variable
voltage control system. This system mea-
sures the amount of electrical discharge
from the battery and controls voltage gen-
erated by the generator.
The current sensor is located near the bat-
tery along the negative battery cable. If you
add electrical accessories to your vehicle,
be sure to ground them to a suitable body
ground such as the frame or engine block
area.
1. Automatic tensioner pulley
2. Generator pulley
3. Water pump pulley
4. Air conditioner compressor pulley
5. Crankshaft pulley
WARNING
Be sure the ignition switch is in the OFF
or LOCK position before servicing drive
belt. The engine could rotate
unexpectedly.
LDI3272 WDI0638
VARIABLE VOLTAGE CONTROL
SYSTEM
DRIVE BELT
8-16 Do-it-yourself
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