U0001A faulty wheel speed sensor, A problem with the wheel speed sensor circuit, Reluctor issues, A problem with the ABS module
Problema grave en la red de comunicación CAN de alta velocidad del vehículo.
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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
Red CAN · Comunicación entre módulos
Falla de comunicación en la red CAN: pérdida de datos entre las unidades de control (ECU).
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
- Múltiples luces de error simultáneas
- Módulos no responden
- Vehículo en modo de emergencia
Possible Causes
The components or conditions that trigger this code
- 1Bus CAN abierto o en cortocircuito
- 2ECU defectuosa
- 3Interferencia electromagnética
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Revisar cableado de bus CAN.
- 2Verificar todas las ECUs con escáner.
- 3Reparar o reemplazar ECU defectuosa.
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)
Communication modules
* Diagnosis only: $50–$150
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