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B18 Owner's 2020-2025 Sentra owner information B18 Service 2020-2025 Sentra Workshop manual B17 Owner's 2013-2019 Sentra owner documentation B17 Service 2013-2019 Sentra service information

Nissan Sentra B18 (2020-2025) Owner's Manual: Variable voltage control system

Nissan Sentra variable voltage control system diagram

CAUTION

  • Do not ground electrical accessories directly to the battery terminal. Doing so bypasses the variable voltage control system and may prevent the battery from charging properly.
  • Operate electrical accessories with the engine running whenever possible to avoid unnecessary battery discharge.

Your Nissan Sentra is equipped with a variable voltage control system that monitors battery discharge and regulates the voltage generated by the vehicle’s generator accordingly.

The current sensor A is located near the battery along the negative battery cable. When installing additional electrical accessories, always ground them to a proper body ground such as the vehicle frame or engine block.

    Battery
    If the battery is labeled "do not open", it is a maintenance-free battery and the battery fluid level should not be checked. For accurate battery condition assessment,...
    Drive belt
    Automatic tensioner pulley Generator pulley Water pump pulley Air conditioner compressor pulley Crankshaft pulley WARNING Ensure that the ignition switch is in the OFF or LOCK p...

    Other materials:

    B Terminal Circuit. Diagnosis Procedure
    Diagnosis Procedure Diagnosis Procedure “B” terminal circuit supplies power to charge the battery and to operate the vehicles electrical system. CHECK “B” TERMINAL CONNECTION Ignition switch OFF. ...

    Sonar System. Preparation. Preparation
    Preparation Special Service Tools Special Service Tools The actual shape of the tools may differ from those illustrated here. Tool number (TechMate No.) Tool name   D ...

    Intelligent Key Unit. Removal and Installation
    Removal and Installation Removal and Installation REMOVAL CAUTION: Be sure to perform “ADDITIONAL SERVICE WHEN REPLACING INTELLIGENT KEY UNIT” when replacing Intelligent Key unit. Refer to Work Procedure. Remove instrument panel assembly. Refer to Removal and ...