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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:

    Line Pressure Solenoid Valve Circuit
    Diagnosis Procedure Diagnosis Procedure CHECK HARNESS CONNECTOR Ignition switch OFF. Check the mating condition of TCM harness connector and CVT unit harness connector. Is the inspect ...

    Pre-Inspection for Diagnosis
    Work Procedure Work Procedure CHECK CAMERA LENS AND WINDSHIELD Are camera lens and windshield contaminated with foreign materials? YES (When the camera lens is contaminated with foreign materials.) >> Replace front camera unit (Refer to R ...

    Trip Reset Switch Signal Circuit
    Diagnosis Procedure Diagnosis Procedure CHECK TRIP RESET SWITCH SIGNAL Ignition switch ON. Check voltage between the following terminals of the trip reset switch harness con ...