{"id":1962,"date":"2025-04-10T07:25:15","date_gmt":"2025-04-10T11:25:15","guid":{"rendered":"https:\/\/documotors.com\/?p=1962"},"modified":"2025-04-10T07:25:16","modified_gmt":"2025-04-10T11:25:16","slug":"p0117","status":"publish","type":"post","link":"https:\/\/documotors.com\/wiki\/p0117\/","title":{"rendered":"P0117"},"content":{"rendered":"\n

El c\u00f3digo DTC P0117<\/strong> se activa cuando el sensor de temperatura del refrigerante del motor (ECT) reporta una se\u00f1al de voltaje anormalmente baja a la ECU. Este comportamiento suele interpretarse como si el motor estuviera extremadamente caliente, lo cual puede alterar significativamente el funcionamiento del sistema de inyecci\u00f3n y encendido.<\/p>\n\n\n\n

Este c\u00f3digo puede derivar en arranques dif\u00edciles, mezcla rica y activaci\u00f3n innecesaria del ventilador del radiador.<\/p>\n\n\n\n

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

El sensor ECT funciona con una se\u00f1al de voltaje que var\u00eda seg\u00fan la temperatura. Cuanto m\u00e1s caliente est\u00e1 el motor, menor es el voltaje que env\u00eda a la ECU. Si el voltaje cae por debajo del umbral establecido (normalmente <0.1 V), se considera una entrada baja<\/strong>, activando el c\u00f3digo DTC P0117<\/strong>. Esto puede deberse a un cortocircuito a masa, un sensor averiado o un fallo en el cableado.<\/p>\n\n\n\n

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

Se debe utilizar un esc\u00e1ner automotriz para confirmar el c\u00f3digo y leer los datos del sensor ECT. Si el sensor muestra una temperatura excesivamente alta apenas se enciende el motor, o si el voltaje es cercano a cero aunque el motor est\u00e9 fr\u00edo, se confirma la entrada baja.<\/p>\n\n\n\n

Una inspecci\u00f3n visual puede revelar cables pelados, humedad en el conector o conexiones flojas. Con un mult\u00edmetro, tambi\u00e9n puede comprobarse la continuidad y el voltaje de referencia.<\/p>\n\n\n\n

\u00bfEs grave el c\u00f3digo P0117?<\/h2>\n\n\n\n

S\u00ed. Este c\u00f3digo puede hacer que la ECU piense que el motor est\u00e1 sobrecalentado, lo que puede alterar la mezcla aire-combustible, encender el ventilador constantemente y modificar los tiempos de encendido. Adem\u00e1s, podr\u00eda ocultar una condici\u00f3n real de sobrecalentamiento si el sensor est\u00e1 dando lecturas err\u00f3neas.<\/p>\n\n\n\n

Posibles soluciones<\/h2>\n\n\n\n
    \n
  • Verificar el cableado del sensor y reparar cortocircuitos o conexiones a masa.<\/li>\n\n\n\n
  • Limpiar o reemplazar el conector del sensor.<\/li>\n\n\n\n
  • Probar el sensor ECT con mult\u00edmetro o sustituirlo directamente si da lecturas an\u00f3malas.<\/li>\n\n\n\n
  • Comprobar la se\u00f1al de referencia de la ECU.<\/li>\n<\/ul>\n\n\n\n

    Prevenciones<\/h2>\n\n\n\n
      \n
    • No ignorar luces de advertencia o lecturas an\u00f3malas de temperatura.<\/li>\n\n\n\n
    • Realizar mantenimientos peri\u00f3dicos del sistema de refrigeraci\u00f3n.<\/li>\n\n\n\n
    • Evitar el uso de componentes gen\u00e9ricos de baja calidad.<\/li>\n<\/ul>\n\n\n\n

      C\u00f3digos relacionados con el P0117<\/h2>\n\n\n\n
        \n
      • P0115<\/strong> \u2013 Sensor ECT: Circuito defectuoso<\/li>\n\n\n\n
      • P0116<\/strong> \u2013 Sensor ECT: Rango\/funcionamiento incorrecto<\/li>\n\n\n\n
      • P0118<\/strong> \u2013 Sensor ECT: Entrada alta<\/li>\n\n\n\n
      • P0128<\/strong> \u2013 Termostato: Temperatura del refrigerante por debajo del regulado<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        El c\u00f3digo DTC P0117 se activa cuando el sensor de temperatura..<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[95],"tags":[96,90,18],"class_list":["post-1962","post","type-post","status-publish","format-standard","hentry","category-dtc","tag-codigos-dtc","tag-diagnosticos","tag-sistemas"],"yoast_head":"\nC\u00f3digo de Error P0117 \u2013 Sensor ECT: Entrada Baja<\/title>\n<meta name=\"description\" content=\"El c\u00f3digo DTC P0117 se activa cuando el sensor de temperatura del refrigerante del motor (ECT) reporta una se\u00f1al de voltaje anormalmente baja a la ECU.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/documotors.com\/wiki\/p0117\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta 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