The battery control module (battery management system, BMS) monitors battery condition, manages charging behaviour, and reports status to the vehicle’s other electronic systems.
If you notice any of the following, the part likely needs replacement:
Battery warning light on the dashboard
Poor battery performance despite the battery itself testing healthy
Diagnostic fault code related to the module itself
Installation information
Mounted at or near the battery terminal, connecting to the vehicle wiring harness — often requires registration/coding of a new battery after replacement.
Frequently asked questions
Modern vehicles rely on precise battery health data to optimise charging, manage start-stop function, and prevent premature battery wear — this module tracks that data continuously.
Super good! They came through with the part I needed, quickly and at a fair price! Thanks, and I definitely recommend!
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Ilmars K.
August 2026
★★★★★
I ordered a Heater Blower Motor Resistor for a Toyota Avensis. Delivery took eight days from Latvia to Ireland. I installed it, and everything works perfectly. I wish this company success.
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Aleksandr L.
Toyota Avensis
August 2026
★★★★★
No complaints about Evro Trans itself, everything's fine. But the delivery..... It felt like the order was being carried by turtles. 4 days from Riga to Daugavpils. Judging by the tracking, the parcel just sat somewhere behind a shed for 3 days, then they found it and delivered it the next day. I think that's why I won't be ordering there again.
P
Paul F.
June 2026
★★★★★
Super fast delivery of the part, and good quality of the used part. Thanks for the service.
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Natālija I.
May 2026
★★★★★
I ordered antifreeze heaters and an auxiliary pump. Everything arrived quickly, the very next day, and matched the description. I'm satisfied.
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Juris J.
February 2026
★★★★★
Excellent service, timely delivery, and complete transparency at every step. I highly recommend EvroTrans to anyone looking for a reliable partner!
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Egor S.
November 2025
★★★★★
Bought a front fender for my car. I liked it! After payment they sent more than 20 photos of the problem areas, and it was packed very securely - took a while to unwrap.
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