OBD
P0B70
Hybrid/EV Battery Voltage Sense K Circuit High
What it means
P0B70 means Hybrid/EV Battery Voltage Sense K Circuit High.
Check these first
- High voltage on the sense K circuit
- A short or fault in the sense K wiring
- A failed voltage sensor on circuit K
- Corroded sense K connectors
- The battery installed or maintained incorrectly
What to do next
- Read sense K voltage live and compare to spec
- Inspect sense K wiring for shorts or corrosion
- Test the voltage sensor on circuit K
- Check the battery for overcharge
- Verify battery installation and service
- Clear the code and retest
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Updated
Generic SAE J2012 definition. Last updated 2026-10-10.