{"id":1868,"date":"2025-04-10T06:13:50","date_gmt":"2025-04-10T10:13:50","guid":{"rendered":"https:\/\/documotors.com\/?p=1868"},"modified":"2025-04-10T06:13:50","modified_gmt":"2025-04-10T10:13:50","slug":"p0071","status":"publish","type":"post","link":"https:\/\/documotors.com\/wiki\/p0071\/","title":{"rendered":"P0071"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">El c\u00f3digo DTC P0071 indica que la ECU ha detectado un problema en el rendimiento o el rango de operaci\u00f3n del sensor de temperatura ambiente (Ambient Air Temperature Sensor \u2013 AAT). Este c\u00f3digo de error OBDII aparece cuando las lecturas del sensor no var\u00edan como se espera, o se mantienen constantes en un valor il\u00f3gico durante un per\u00edodo de funcionamiento.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">Descripci\u00f3n del Error<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">El sensor de temperatura ambiente informa a la ECU sobre las condiciones t\u00e9rmicas exteriores, informaci\u00f3n usada en sistemas de climatizaci\u00f3n autom\u00e1tica, ventiladores de enfriamiento y en algunas estrategias de mezcla de aire y combustible. El c\u00f3digo P0071 se genera cuando la lectura del sensor est\u00e1 fuera del rango esperado o no cambia de manera coherente con el entorno, lo que podr\u00eda indicar que el sensor est\u00e1 atascado, da\u00f1ado o que el circuito tiene un problema el\u00e9ctrico.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">Diagn\u00f3stico<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Para diagnosticar este c\u00f3digo se debe comenzar con una lectura de los datos en vivo del sensor AAT mediante un esc\u00e1ner automotriz. Se debe comparar la lectura con la temperatura real del ambiente. Si la temperatura reportada por el sensor no cambia o est\u00e1 fija en un valor absurdo, puede haber una falla. Tambi\u00e9n se debe inspeccionar el cableado, verificar que no haya cortocircuitos ni conexiones sueltas y comprobar la resistencia del sensor con un mult\u00edmetro.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">\u00bfEs grave el c\u00f3digo P0071?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">No es un fallo que impida el uso del veh\u00edculo, pero puede afectar funciones como el climatizador autom\u00e1tico, la activaci\u00f3n de ventiladores o el rendimiento del motor en condiciones de arranque en fr\u00edo. Adem\u00e1s, puede generar incomodidad si el sistema HVAC (calefacci\u00f3n, ventilaci\u00f3n y aire acondicionado) trabaja de manera err\u00e1tica.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">Posibles soluciones<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Sustituir el sensor de temperatura ambiente si est\u00e1 atascado o fuera de rango.<\/li>\n\n\n\n<li>Reparar o reemplazar conectores y cableado en mal estado.<\/li>\n\n\n\n<li>Verificar que el sensor est\u00e9 montado en una ubicaci\u00f3n correcta y sin obstrucciones.<\/li>\n\n\n\n<li>Borrar el c\u00f3digo con esc\u00e1ner automotriz tras corregir la causa ra\u00edz.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">Prevenciones<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Revisar visualmente el sensor durante mantenimientos regulares.<\/li>\n\n\n\n<li>No permitir que el sensor quede expuesto a golpes, agua o productos qu\u00edmicos.<\/li>\n\n\n\n<li>Asegurar la calidad de los repuestos utilizados.<\/li>\n\n\n\n<li>Evitar la manipulaci\u00f3n del cableado si no es necesario.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" style=\"font-size:1.2em !important; border-bottom:1px solid #ccc !important; padding-bottom:0.8em !important; padding-top:1.2em !important; padding-right:25px; cursor:pointer; background:url(https:\/\/documotors.com\/wp-content\/uploads\/99174301744201836.svg) no-repeat right center; background-size:20px auto;\">C\u00f3digos relacionados con el P0071<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>P0070<\/strong> \u2013 Sensor de temperatura ambiente, circuito<\/li>\n\n\n\n<li><strong>P0072<\/strong> \u2013 Sensor de temperatura ambiente, se\u00f1al baja<\/li>\n\n\n\n<li><strong>P0073<\/strong> \u2013 Sensor de temperatura ambiente, se\u00f1al alta<\/li>\n\n\n\n<li><strong>P0110<\/strong> \u2013 Sensor IAT, mal funcionamiento<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>El c\u00f3digo DTC P0071 indica que la ECU ha detectado un..<\/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-1868","post","type-post","status-publish","format-standard","hentry","category-dtc","tag-codigos-dtc","tag-diagnosticos","tag-sistemas"],"yoast_head":"<!-- This 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