P1602
Sistema
Powertrain (ECM)
Escáner necesario
Full-system scanner (engine, ABS, SRS, transmission, service resets)

ECM Has Not Been Programmed

Understand P1602, common causes, and the right FOXWELL scanner to diagnose it.

Control module missing calibration or VIN programming.

Síntomas habituales

  • No-start after module replacement
  • Security or immobilizer light

Causas típicas

  • New ECM not flashed
  • Used module from donor vehicle
  • Interrupted programming

¿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 P1602 with a basic code reader?
P1602 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 P1602?
It depends on the code and symptoms. Flashing check engine lights and misfire codes should be addressed immediately. Consult a professional if unsure.