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When the operation is successfully completed, a “Completed successfully” message will
appear on the screen. Press OK to exit.
BMS
The BMS (Battery Management System) allows the scan tool to evaluate the battery
charge state, monitor the close-circuit current, register the battery replacement, and
activate the rest state of the vehicle.
NOTE
This function is not supported by all vehicles. The screens shown in this section are
examples.
The sub functions and actual test screens of the BMS may vary by vehicle. Please
follow the on-screen instructions to make the correct selection.
The vehicle may use either a sealed lead-acid battery or an AGM (Absorbed Glass Mat)
battery. Lead acid battery contains liquid sulphuric acid and can spill when overturned.
AGM battery (known as VRLA battery, valve regulated lead acid) also contains sulphuric
acid, but the acid is contained in glass mats between terminal plates.
It is recommended that the replacement aftermarket battery have the same specifications,
such as capacity and type, as the battery in the vehicle. If the original battery is replaced
with a different type of battery (e.g. a lead-acid battery is replaced with an AGM battery)
or a battery with a different capacity (mAh), the vehicle may require reprogramming the
new battery type in addition to performing the battery reset. Consult the vehicle manual
for additional vehicle-specific information.
Register Battery Replacement
This option allows displaying the mileage reading of last battery replacement, registering
the battery replacement after replacing a new battery and informing the power
management system that a new battery has been fitted to the vehicle.
If the battery change is not registered, the power management system will not function
properly, which may not provide the battery with enough charging power to operate the
car and limit the functions of individual electrical equipment.
Using BMW as an example.
To display the battery history
1. Tap the Service application button from the MaxiCOM Job Menu.
2. Tap BMS button and wait for the vehicle manufacturer screen. Tap VIN Scan or
the vehicle make to acquire vehicle VIN information and tap Yes to confirm. See
Vehicle Identification for detail.
3. Tap Register Battery Replacement in the BMS function list. The list may vary
by vehicle.
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