U0144
Sistema
Network (CAN Bus)
Escáner necesario
Full-system scanner (engine, ABS, SRS, transmission, service resets)

Lost Communication with Gateway Module A

Understand U0144, common causes, and the right FOXWELL scanner to diagnose it.

Primary gateway module offline — routes between vehicle CAN buses.

Síntomas habituales

  • Many modules offline at once
  • No-start on some platforms

Causas típicas

  • Failed gateway
  • CAN-H/L damage
  • Aftermarket alarm splice

¿Qué escáner necesita?

Full-system scanner (engine, ABS, SRS, transmission, service resets)

Use datos en vivo y freeze frame antes de cambiar piezas. Códigos ABS, SRS y U suelen requerir un escáner de todos los sistemas.

Consejos de diagnóstico

  • Registre el freeze frame cuando se active el código
  • Borre el código solo tras corregir la causa
  • Revise códigos pendientes relacionados
  • Verifique que la batería esté por encima de 12,4 V antes de sospechar sensores

Escáneres FOXWELL recomendados

Preguntas frecuentes

Can I diagnose U0144 with a basic code reader?
U0144 may set in the engine module, but related diagnostics often benefit from an enhanced or full-system scanner with live data and freeze frame.
Is it safe to drive with U0144?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.