P0DAA
Battery Charging System Isolation Fault
The BMS detects an isolation fault in the battery charging system. HV insulation between charging path and chassis is degraded.
The BMS detects an isolation fault in the battery charging system. HV insulation between charging path and chassis is degraded.
Common causes
- high
Charging cable insulation chafed
One of the most commonly reported causes for this code — check this first.
Typical part cost: $440-3300
- medium
Moisture in charging connector
A plausible cause — test and verify before replacing parts.
Typical part cost: $440-3300
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does P0DAA mean?
P0DAA means "Battery Charging System Isolation Fault". It is a generic OBD-II code that points to a fault in the hybrid / ev powertrain.
What are the most common causes of P0DAA?
charging cable insulation chafed; moisture in charging connector — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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