P0A05High Voltage Battery Weak Cell Detected
One or more cells in the high-voltage battery pack have reduced capacity.
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Sistema Híbrido / EV · Batería HV y motor eléctrico
Pertenece al sistema de alto voltaje: batería de tracción, inversor o motor eléctrico.
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Reduced driving range
- Irregular charging
- Evident battery degradation
Possible Causes
The components or conditions that trigger this code
- 1Natural cell aging
- 2Repeated deep charge cycles
- 3Accumulated extreme temperature
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Full cell diagnosis with specialized equipment
- 2Evaluate replacing the affected battery module
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
HV electric system
* Diagnosis only: $50–$150
Quick Info
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