P0A1FBattery Management System (BMS) Fault
The battery management system (BMS) has a general fault that compromises safety.
Can I keep driving? NO
STOP the vehicle in a safe place. Continuing to drive may cause serious engine damage or put your safety at risk.
Sistema Afectado
Sistema Híbrido / EV · Batería HV y motor eléctrico
Pertenece al sistema de alto voltaje: batería de tracción, inversor o motor eléctrico.
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Symptoms You Will Notice
What you may observe when this code appears
- Multiple battery warnings
- Charging unavailable
- Incorrect range estimates
Possible Causes
The components or conditions that trigger this code
- 1Faulty BMS module
- 2Software error
- 3Internal communication problem
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Update the BMS software
- 2Replace the BMS module if it persists
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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