BMS_a029 — D Soc Limiting

Full alert identifier: BMS_a029_dSoc_Limiting

Alert description

The Battery Management System (BMS) detects a condition internal to the high voltage (HV) battery that requires the max allowed brick voltage to be limited.

Potential impact

The target max brick voltage for charge is limited to the voltage corresponding to 50% SOC.

Set condition

BMS_w117_SW_Delta_SOC_Weak_Short is set and (UI_dSocAlertEnable==1 or dSocAlertEnabledByDefault==1).

Clear condition

BMS_w117_SW_Delta_SOC_Weak_Short is clear or (UI_dSocAlertEnable==0 and dSocAlertEnabledByDefault!=1).

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_a029.

BMS_a067 — CAC Imbalance Limiting BMS_a067_CAC_Imbalance_Limiting The Battery Management System (BMS) detects that the calculated Amp-hour capacity (CAC) difference between bricks within a single module exceeds the acceptable threshold, which may reduce battery performance.
BMS_a064 — SW SOC Imbalance BMS_a064_SW_SOC_Imbalance The Battery Management System (BMS) detects a possible state of charge (SOC) imbalance.
BMS_a066 — SOC Imbalance Warning BMS_a066_SOC_Imbalance_Warning This alert is an early warning for a064 SOC Imbalance, which limits the battery's max SOC. It triggers with a lower threshold than SOC imbalance
BMS_a145 — SW SOC Change BMS_a145_SW_SOC_Change A State of Charge (SOC) based on Open Circuit Voltage (OCV), known as SocByOcv, correction of greater than 3% to high voltage (HV) battery SOC occurred during the previous resting period (time vehicle was not used). This may cause a signif…
BMS_a070 — Brick V Imbalance Limiting BMS_a070_BrickV_Imbalance_Limiting The difference between max brick voltage and min brick voltage is greater than the allowed threshold

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