BMS_f016 — SW Thermal Gradient

Full alert identifier: BMS_f016_SW_Thermal_Gradient

Alert description

The battery management system (BMS) detects a temperature imbalance between high voltage (HV) battery modules.

Potential impact

Inability to charge, drive, or the support low voltage (LV) system

Set condition

The BMS detects a high temperature difference between the hottest and coldest modules, diverging temperatures while the vehicle is awake, or diverging temperatures while the vehicle is sleeping. Alert log signal data provides the temperatures that triggered the alert.

Clear condition

The BMS detects that the condition clears.

Signals to check

Open this alert in Service Mode Plus and review the Payload tab. Use the field names below to identify the values shown by your vehicle.

Signal	Unit
Ambient T `BMS_a016_ambientT` 255 SNA	C
Avg Brick T `BMS_a016_avgBrickT`	C
Inlet Temp `BMS_a016_inletTemp` 255 SNA	C
Max Brick T `BMS_a016_maxBrickT`	C
Min Brick T `BMS_a016_minBrickT`	C

Signal	Unit
T Gradient Err Type `BMS_a016_TGradientErrType` 0 ABSOLUTE DELTAT 1 GRADIENT DELTA WAKE 2 GRADIENT DELTA SLEEP	—
Bleed Is On `BMS_a016_bleedIsOn`	—
State `BMS_a016_state`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of BMS_f016.