Hybrid/EV Battery Cell Balancing Circuit I Range/Performance

Check these first

• A balancing current on circuit I out of range
• High resistance in the circuit I balancing path
• A cell controller misreading the circuit I balance time
• A shorted balancing resistor on circuit I

What to do next

1. Read the balancing current and time on circuit I
2. Compare the circuit I group to the rest of the pack
3. Check the circuit I balancing path for resistance
4. Inspect the harness and connector for corrosion
5. Replace the balancing board if the current stays out of range
6. Clear the code and retest

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