P2D3E
Cold Start Hybrid/EV Battery Performance
During cold start, the HV battery cannot deliver the expected power. Cold cell impedance reduces available current.
During cold start, the HV battery cannot deliver the expected power. Cold cell impedance reduces available current.
Common causes
- high
Cell impedance high at cold
One of the most commonly reported causes for this code — check this first.
Typical part cost: $220-3300
- medium
Battery heater not yet effective
A plausible cause — test and verify before replacing parts.
Typical part cost: $220-3300
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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 P2D3E mean?
P2D3E means "Cold Start Hybrid/EV Battery Performance". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.
What are the most common causes of P2D3E?
cell impedance high at cold; battery heater not yet effective; pack cell imbalance approaching service threshold — 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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