{"id":2072,"date":"2025-04-11T00:26:30","date_gmt":"2025-04-11T04:26:30","guid":{"rendered":"https:\/\/documotors.com\/?p=2072"},"modified":"2025-04-11T00:26:31","modified_gmt":"2025-04-11T04:26:31","slug":"p0136","status":"publish","type":"post","link":"https:\/\/documotors.com\/wiki\/p0136\/","title":{"rendered":"P0136"},"content":{"rendered":"\n

El c\u00f3digo DTC P0136<\/strong> indica una falla en el circuito del sensor de ox\u00edgeno ubicado despu\u00e9s del catalizador<\/strong> en el banco 1, conocido como sensor 2<\/strong>. Este sensor monitorea la eficiencia del convertidor catal\u00edtico comparando los gases antes y despu\u00e9s del mismo.<\/p>\n\n\n\n

Una falla en este sensor no afecta directamente la mezcla aire-combustible, pero s\u00ed puede impedir que el sistema de diagn\u00f3stico de emisiones funcione correctamente.<\/p>\n\n\n\n

Descripci\u00f3n del Error<\/h2>\n\n\n\n

El sensor O2 posterior al catalizador<\/strong> debe tener una se\u00f1al de voltaje relativamente estable, a diferencia del sensor anterior. Si la ECU no detecta actividad en su se\u00f1al, o si el voltaje est\u00e1 fuera del rango normal, se activa el c\u00f3digo DTC P0136<\/strong>.<\/p>\n\n\n\n

Entre las causas m\u00e1s comunes est\u00e1n:<\/p>\n\n\n\n

    \n
  • Sensor da\u00f1ado o envejecido<\/li>\n\n\n\n
  • Cableado corro\u00eddo, suelto o cortado<\/li>\n\n\n\n
  • Conector sucio o sulfatado<\/li>\n\n\n\n
  • Contaminaci\u00f3n por aceite o refrigerante<\/li>\n<\/ul>\n\n\n\n

    Diagn\u00f3stico<\/h2>\n\n\n\n

    Se debe escanear el sistema y revisar la se\u00f1al del sensor 2. En condiciones normales, la lectura se mantiene m\u00e1s estable que la del sensor 1. Si la se\u00f1al est\u00e1 fija o fuera del rango (usualmente 0.4\u20130.6\u202fV), hay una falla en el sensor o su circuito.<\/p>\n\n\n\n

    Con un mult\u00edmetro, se puede comprobar continuidad, alimentaci\u00f3n y se\u00f1al de retorno. Tambi\u00e9n es importante verificar que no existan fugas de escape despu\u00e9s del catalizador que puedan afectar la medici\u00f3n.<\/p>\n\n\n\n

    \u00bfEs grave el c\u00f3digo P0136?<\/h2>\n\n\n\n

    No impide el funcionamiento del motor, pero s\u00ed afecta el sistema de diagn\u00f3stico de emisiones, pudiendo provocar un rechazo en inspecciones t\u00e9cnicas<\/strong>. Adem\u00e1s, impide que la ECU verifique si el catalizador est\u00e1 trabajando correctamente, lo que podr\u00eda ocultar fallos graves a futuro.<\/p>\n\n\n\n

    Posibles soluciones<\/h2>\n\n\n\n
      \n
    • Inspeccionar y reparar el cableado del sensor O2 posterior.<\/li>\n\n\n\n
    • Limpiar o reemplazar el conector si hay sulfataci\u00f3n.<\/li>\n\n\n\n
    • Verificar que no haya da\u00f1os f\u00edsicos en el sensor o se\u00f1ales de contaminaci\u00f3n.<\/li>\n\n\n\n
    • Reemplazar el sensor si no entrega se\u00f1al.<\/li>\n\n\n\n
    • Borrar el c\u00f3digo tras la reparaci\u00f3n y verificar su no recurrencia.<\/li>\n<\/ul>\n\n\n\n

      Prevenciones<\/h2>\n\n\n\n
        \n
      • Cambiar los sensores O2 conforme al kilometraje recomendado por el fabricante.<\/li>\n\n\n\n
      • Evitar fugas internas de aceite o refrigerante que contaminen los gases de escape.<\/li>\n\n\n\n
      • No instalar sensores usados o de baja calidad.<\/li>\n<\/ul>\n\n\n\n

        C\u00f3digos relacionados con el P0136<\/h2>\n\n\n\n
          \n
        • P0137<\/strong> \u2013 Sensor O2 Banco 1 Sensor 2: Entrada baja<\/li>\n\n\n\n
        • P0138<\/strong> \u2013 Sensor O2 Banco 1 Sensor 2: Entrada alta<\/li>\n\n\n\n
        • P0140<\/strong> \u2013 Sensor O2 Banco 1 Sensor 2: No actividad detectada<\/li>\n\n\n\n
        • P0141<\/strong> \u2013 Calentador del sensor O2 Banco 1 Sensor 2: Circuito defectuoso<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

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