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HVREX_a734 — Cac Imbalance Limiting

Full alert identifier: HVREX_a734_CacImbalanceLimiting

Alert description

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.

Potential impact

Reduced maximum range and limited charging performance.

Set condition

The BMS detects that the estimated CAC imbalance between the average CAC and the minimum CAC of bricks within a single module exceeds the acceptable threshold

Clear condition

The BMS detects that the estimated CAC imbalance between the average CAC and the minimum CAC of bricks within a single module is within the acceptable threshold.

Signals to check

These diagnostic fields are associated with HVREX_a734. Check the alert's Alert Log in Service Mode Plus for available values.

Signal Unit
Avg Brick Cac HVREX_a734_avgBrickCac
8191
SNA
Ah
Min Brick Cac HVREX_a734_minBrickCac
8191
SNA
Ah
Min Brick Cac Id HVREX_a734_minBrickCacId
255
SNA
—
Mod Cac Imbalance Pct HVREX_a734_modCacImbalancePct %

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of HVREX_a734.

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