{"id":1972,"date":"2025-04-10T07:28:43","date_gmt":"2025-04-10T11:28:43","guid":{"rendered":"https:\/\/documotors.com\/?p=1972"},"modified":"2025-04-10T07:28:43","modified_gmt":"2025-04-10T11:28:43","slug":"p0122","status":"publish","type":"post","link":"https:\/\/documotors.com\/wiki\/p0122\/","title":{"rendered":"P0122"},"content":{"rendered":"\n

El c\u00f3digo DTC P0122<\/strong> indica que el voltaje de salida del sensor de posici\u00f3n del acelerador (TPS) est\u00e1 por debajo del nivel m\u00ednimo aceptable. Esto es interpretado por la ECU como una se\u00f1al de que la mariposa del acelerador est\u00e1 casi completamente cerrada, incluso si el pedal est\u00e1 presionado.<\/p>\n\n\n\n

Este fallo puede generar aceleraci\u00f3n limitada, p\u00e9rdida de potencia y funcionamiento irregular del motor.<\/p>\n\n\n\n

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

El sensor TPS env\u00eda una se\u00f1al de voltaje a la ECU que var\u00eda dependiendo de cu\u00e1nto se abre el acelerador. Cuando esta se\u00f1al cae por debajo del umbral m\u00ednimo (normalmente alrededor de 0.2 V), se activa el c\u00f3digo DTC P0122<\/strong>. Esto puede ser causado por un cortocircuito a tierra, un sensor defectuoso, un conector suelto o problemas en el cableado.<\/p>\n\n\n\n

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

Se debe escanear el sistema con un esc\u00e1ner automotriz y observar la se\u00f1al del TPS. Si la lectura se mantiene demasiado baja incluso al presionar el acelerador, hay una falla clara en la se\u00f1al.<\/p>\n\n\n\n

Se puede usar un mult\u00edmetro para verificar el voltaje en el cable de se\u00f1al. Tambi\u00e9n es \u00fatil inspeccionar el conector y los cables en busca de cortos, corrosi\u00f3n o pines sueltos. En los sistemas de aceleraci\u00f3n electr\u00f3nica, tambi\u00e9n se debe verificar la se\u00f1al del pedal del acelerador.<\/p>\n\n\n\n

\u00bfEs grave el c\u00f3digo P0122?<\/h2>\n\n\n\n

S\u00ed. Una se\u00f1al baja puede impedir que el motor acelere correctamente, generando una respuesta lenta o nula del acelerador. En muchos casos, el veh\u00edculo entra en modo de emergencia, restringiendo la potencia del motor por seguridad.<\/p>\n\n\n\n

Posibles soluciones<\/h2>\n\n\n\n
    \n
  • Revisar y limpiar el conector del sensor TPS.<\/li>\n\n\n\n
  • Comprobar el voltaje de se\u00f1al y el de referencia (normalmente 5 V).<\/li>\n\n\n\n
  • Reparar cortocircuitos o conexiones a tierra en el cableado.<\/li>\n\n\n\n
  • Reemplazar el sensor si entrega se\u00f1ales permanentemente bajas.<\/li>\n\n\n\n
  • Verificar el funcionamiento del cuerpo de aceleraci\u00f3n si es electr\u00f3nico.<\/li>\n<\/ul>\n\n\n\n

    Prevenciones<\/h2>\n\n\n\n
      \n
    • Evitar el uso de componentes gen\u00e9ricos o de baja calidad.<\/li>\n\n\n\n
    • No aplicar fuerza excesiva sobre el pedal del acelerador.<\/li>\n\n\n\n
    • Mantener los conectores libres de humedad y contaminantes.<\/li>\n<\/ul>\n\n\n\n

      C\u00f3digos relacionados con el P0122<\/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
      • P0123<\/strong> \u2013 TPS: Entrada alta<\/li>\n\n\n\n
      • P0222<\/strong> \u2013 TPS\/Pedal B: Entrada baja<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"

        El c\u00f3digo DTC P0122 indica que el voltaje de salida 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-1972","post","type-post","status-publish","format-standard","hentry","category-dtc","tag-codigos-dtc","tag-diagnosticos","tag-sistemas"],"yoast_head":"\nC\u00f3digo de Error P0122 \u2013 Sensor TPS: Entrada Baja<\/title>\n<meta name=\"description\" content=\"El c\u00f3digo DTC P0122 indica que el voltaje de salida del sensor de posici\u00f3n del acelerador (TPS) est\u00e1 por debajo del nivel m\u00ednimo aceptable. 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