P0DC5
Hybrid/EV Battery Cell Balancing Circuit "G" Stuck On
Generic OBD-II
What it means
The battery management system reports that cell balancing circuit G is stuck on. Balancing circuits bleed charge from individual cells so the pack stays even, and this one will not switch off.
Can I keep driving? Caution: a stuck balancing circuit can drain a cell and reduce range or power, so get it checked soon and do not touch orange high-voltage parts.
Common symptoms
What you'll notice
- Hybrid or EV warning light on
- Reduced range or power
- Uneven battery readings
- Battery health warning
Common causes
Most likely first
- Wiring or connector fault on the cell sensing harness
- Faulty balancing circuit or battery monitor board
- Cell voltage imbalance in the pack
- Battery management module fault
How to diagnose & fix
Work through it in order
- Read all hybrid/EV battery codes.
- Compare cell voltages in live data if the scanner shows them.
- Check the 12 V battery and ground.
- Have the pack inspected by a high-voltage technician if cell readings differ.
Related codes
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