Nissan Sentra Owners Manual: Variable voltage control system
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 measures the amount of electrical discharge from the battery and controls voltage generated by the generator.
The current sensor A is located near the battery 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.
Battery
Keep the battery surface clean and dry.
Clean the battery with a solution of baking
soda and water.
Make certain the terminal connections are
clean and securely tightened.
If the vehicle ...
Drive belt
Automatic tensioner
Generator
Water pump
Air conditioner compressor
Crankshaft pully
WARNINGBe sure the ignition switch is in the OFF
or
LOCK position before servicing dr ...
Other materials:
Body alignment
Body Center Marks
A mark has been placed on each part of the body to indicate the vehicle
center. When repairing parts damaged
by an accident which might affect the vehicle frame (members, pillars, etc.),
more accurate and effective
repair will be possible by using these marks together with ...
P0643 Sensor power supply
Description
ECM supplies a voltage of 5.0 V to some of the sensors systematically divided
into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a
malfunction may occur simultaneously
in the sensors belonging to the same group as the shorted-circui ...
Abbreviations
Abbreviation List
The following ABBREVIATIONS are used:
A
ABBREVIATION
DESCRIPTION
A/C
Air conditioner
A/C
Air conditioning
A/F sensor
Air fuel ratio sensor
A/T
Automatic transaxle/transmission
ABS
Anti-lock braking sys ...
