P0C20Regenerative Braking System Fault
The regenerative braking system that recovers energy when braking does not work correctly.
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
- No energy recovery when braking
- Different brake pedal feel
- Lower energy efficiency
Possible Causes
The components or conditions that trigger this code
- 1Faulty inverter
- 2BMS does not accept regenerative charge
- 3Battery completely full
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Check the battery state of charge
- 2Diagnose the inverter
- 3Check the BMS
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)
Varies by diagnosis
* Diagnosis only: $50–$150
Quick Info
Dig Deeper
Videos, images and service manuals
Have Another Code?
Look it up directly: