Hybrid/EV Battery Voltage Sense A Circuit

Check these first

• Corroded or damaged wiring in the voltage sense A circuit
• A failed voltage sense module on circuit A
• A battery too weak to give circuit A a steady reading
• Cells out of balance affecting sense A
• Water in the battery compartment around sense A

What to do next

1. Inspect the sense A wiring and connectors for corrosion
2. Read sense A voltage live and compare to spec
3. Test the voltage sense A module for failure
4. Check for water in the battery compartment
5. Replace the failed sense A module or wiring
6. Clear the code and retest

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