{"id":1974,"date":"2025-04-10T07:58:06","date_gmt":"2025-04-10T11:58:06","guid":{"rendered":"https:\/\/documotors.com\/?p=1974"},"modified":"2025-04-10T07:58:07","modified_gmt":"2025-04-10T11:58:07","slug":"p0123","status":"publish","type":"post","link":"https:\/\/documotors.com\/wiki\/p0123\/","title":{"rendered":"P0123"},"content":{"rendered":"\n

El c\u00f3digo DTC P0123<\/strong> indica que el sensor de posici\u00f3n del acelerador (TPS) est\u00e1 entregando una se\u00f1al de voltaje excesivamente alta a la ECU. Esto puede hacer que la central interprete que el acelerador est\u00e1 completamente abierto incluso si no lo est\u00e1, afectando directamente la respuesta del motor y el control de la mezcla aire-combustible.<\/p>\n\n\n\n

Este tipo de error puede provocar una aceleraci\u00f3n brusca, consumo elevado y modo seguro en el motor.<\/p>\n\n\n\n

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

El sensor TPS convierte la posici\u00f3n de la mariposa del acelerador en una se\u00f1al de voltaje que var\u00eda entre aproximadamente 0.5 y 4.5 V. Cuando la se\u00f1al excede el l\u00edmite m\u00e1ximo (por ejemplo, m\u00e1s de 4.9 V), la ECU considera que hay un error de entrada alta, activando el c\u00f3digo DTC P0123<\/strong>.<\/p>\n\n\n\n

Esto puede deberse a un cortocircuito a positivo, un fallo interno en el sensor, una conexi\u00f3n defectuosa o incluso un problema en la ECU.<\/p>\n\n\n\n

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

Utilizando un esc\u00e1ner automotriz se puede verificar el voltaje de salida del TPS. Si la se\u00f1al es constantemente alta incluso con el acelerador en reposo, el sensor est\u00e1 fuera de rango.<\/p>\n\n\n\n

Tambi\u00e9n se recomienda inspeccionar el arn\u00e9s del sensor, verificar que no haya cables cortados o en corto con la alimentaci\u00f3n de 5 V, y medir el voltaje directamente con un mult\u00edmetro para confirmar si el valor es real o generado por un problema externo.<\/p>\n\n\n\n

\u00bfEs grave el c\u00f3digo P0123?<\/h2>\n\n\n\n

S\u00ed. Este c\u00f3digo puede hacer que la ECU active el modo de emergencia, limitando la aceleraci\u00f3n y el rendimiento general del motor. Tambi\u00e9n puede causar un ralent\u00ed inestable, respuesta irregular al pedal del acelerador y problemas con la transmisi\u00f3n en veh\u00edculos autom\u00e1ticos.<\/p>\n\n\n\n

No se recomienda conducir prolongadamente con este fallo activo.<\/p>\n\n\n\n

Posibles soluciones<\/h2>\n\n\n\n
    \n
  • Revisar el cableado y conector del sensor TPS en busca de cortos a positivo.<\/li>\n\n\n\n
  • Medir el voltaje de salida del sensor con el motor apagado y luego en marcha.<\/li>\n\n\n\n
  • Sustituir el sensor si entrega valores err\u00e1ticos o demasiado altos.<\/li>\n\n\n\n
  • Verificar el cuerpo de aceleraci\u00f3n y el sistema electr\u00f3nico si el sensor es integrado.<\/li>\n\n\n\n
  • Probar con otro TPS compatible para descartar falla interna en la ECU.<\/li>\n<\/ul>\n\n\n\n

    Prevenciones<\/h2>\n\n\n\n
      \n
    • Mantener los sensores y conectores limpios y bien aislados.<\/li>\n\n\n\n
    • Evitar modificaciones el\u00e9ctricas que puedan afectar se\u00f1ales de referencia o alimentaci\u00f3n.<\/li>\n\n\n\n
    • Utilizar repuestos de calidad OEM.<\/li>\n<\/ul>\n\n\n\n

      C\u00f3digos relacionados con el P0123<\/h2>\n\n\n\n
        \n
      • P0120<\/strong> \u2013 TPS\/Pedal A: Circuito defectuoso<\/li>\n\n\n\n
      • P0121<\/strong> \u2013 TPS: Rango\/funcionamiento incorrecto<\/li>\n\n\n\n
      • P0122<\/strong> \u2013 TPS: Entrada baja<\/li>\n\n\n\n
      • P0223<\/strong> \u2013 TPS\/Pedal B: Entrada alta<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        El c\u00f3digo DTC P0123 indica que el sensor de posici\u00f3n del..<\/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-1974","post","type-post","status-publish","format-standard","hentry","category-dtc","tag-codigos-dtc","tag-diagnosticos","tag-sistemas"],"yoast_head":"\nC\u00f3digo de Error P0123 \u2013 Sensor TPS: Entrada Alta<\/title>\n<meta name=\"description\" content=\"El c\u00f3digo DTC P0123 indica que el sensor de posici\u00f3n del acelerador (TPS) est\u00e1 entregando una se\u00f1al de voltaje excesivamente alta a la ECU. 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