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Home >> VinFast >> 2023 >> VF8 Plus >> Repair and Diagnosis >> Electrical >> Charging Systems >> 12V Battery And Fuses >> Repair Procedures >> 12V Battery Negative Cable Disconnection/Connection

12V Battery Negative Cable Disconnection/Connection

Mobile Repair Possible:  Van/Car

NOTE: Damage
Failure to follow specified procedures may result in damage to the vehicle's electrical system.
  • Read Warnings and Instructions before disconnecting the battery.
  • Refer to DANGER AND WARNINGS

Removal Procedure: 

G15971302Courtesy of VINFAST, LLC
  1. Remove maintenance cap (1).
    G15971303Courtesy of VINFAST, LLC
  2. Loosen nut (1), do not remove it.

    Torque: 6 Nm 

    G15971304Courtesy of VINFAST, LLC
  3. Pull off the battery negative cable (1) from the battery negative terminal by carefully moving it to and fro. Do not pry using a tool.
  4. Move the battery negative cable (1) to one side and secure.

Installation Procedure: 

  1. Installation is the reverse of removal procedure, noting the following. All fasteners must be tightened to torque specification! 
  2. For New Battery Installation  , set Threshold of BAS Sensor Value Lowered  to 75% by IDS (Diagnostic Tool). Go to BCM - Service - BAS calibration.
  3. Perform BAS Sensor LEARNING  (possible only when ambient temperature is in range: 10 - 35 degree Celsius) by Turn ON HV in 30 min.