A common diagnostic finding for the BMS_a074 alert is a detected voltage discrepancy between individual battery bricks or modules within the high-voltage pack. When the Battery Management System (BMS) identifies that one or more cells are not holding a charge evenly compared to the rest of the pack, it restricts the maximum charge level to prevent overcharging the weaker cells, which could otherwise lead to thermal runaway or permanent damage.
This condition often manifests as a persistent inability to reach a 100% state of charge, even after extended charging sessions. Professional service is required to perform a cell-level diagnostic scan to determine if the imbalance can be corrected through software-based cell balancing or if the module requires physical replacement.
Comments
Sign in to join the conversation
Sign InNo comments yet. Be the first to share your thoughts!