{"id":1998,"date":"2025-04-10T18:34:22","date_gmt":"2025-04-10T22:34:22","guid":{"rendered":"https:\/\/documotors.com\/?p=1998"},"modified":"2025-04-10T18:34:23","modified_gmt":"2025-04-10T22:34:23","slug":"p0126","status":"publish","type":"post","link":"https:\/\/documotors.com\/wiki\/p0126\/","title":{"rendered":"P0126"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">El <strong>c\u00f3digo DTC P0126<\/strong> indica que el motor no ha logrado alcanzar la temperatura m\u00ednima necesaria para su correcto funcionamiento dentro de un tiempo razonable tras el encendido. Esto puede deberse a problemas en el sistema de refrigeraci\u00f3n o en los sensores encargados de medir la temperatura del motor.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Este c\u00f3digo afecta la eficiencia del combustible, el control de emisiones y el rendimiento general del motor.<\/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\">La ECU espera que el motor llegue a su temperatura \u00f3ptima (entre 80 \u00b0C y 100 \u00b0C) dentro de un lapso determinado luego del arranque. Si esto no ocurre, se registra el <strong>c\u00f3digo DTC P0126<\/strong>. Las causas m\u00e1s comunes incluyen:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Termostato atascado en posici\u00f3n abierta<\/li>\n\n\n\n<li>Sensor ECT defectuoso que reporta baja temperatura constante<\/li>\n\n\n\n<li>Refrigerante de baja calidad o excesivamente fr\u00edo<\/li>\n\n\n\n<li>Aire atrapado en el sistema de refrigeraci\u00f3n<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Este c\u00f3digo es muy similar al P0125, pero m\u00e1s enfocado en el problema t\u00e9rmico en s\u00ed, no en el modo de lazo abierto.<\/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\">Con un esc\u00e1ner automotriz se debe observar la evoluci\u00f3n de la temperatura del motor desde el encendido. Si la lectura del ECT permanece muy baja por m\u00e1s de 10-15 minutos, o no pasa de los 60 \u00b0C (140 \u00b0F), es probable que el termostato est\u00e9 atascado o ausente.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tambi\u00e9n se puede comparar la lectura del sensor con un term\u00f3metro infrarrojo externo en el radiador o la culata del motor.<\/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 P0126?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00ed. El motor funcionando permanentemente por debajo de su temperatura \u00f3ptima produce mezcla rica, carbonilla, p\u00e9rdida de eficiencia y da\u00f1o potencial al sistema de escape. Adem\u00e1s, en climas fr\u00edos, el sistema de calefacci\u00f3n puede no funcionar correctamente.<\/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>Reemplazar el termostato si est\u00e1 atascado abierto o ausente.<\/li>\n\n\n\n<li>Revisar y purgar el sistema de enfriamiento para eliminar bolsas de aire.<\/li>\n\n\n\n<li>Verificar el sensor ECT y su cableado.<\/li>\n\n\n\n<li>Inspeccionar el radiador, bomba de agua y mangueras en busca de restricciones o fugas.<\/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>Realizar cambios de refrigerante y mantenimiento del sistema de enfriamiento en los intervalos recomendados.<\/li>\n\n\n\n<li>Utilizar anticongelante adecuado para el clima de operaci\u00f3n.<\/li>\n\n\n\n<li>Verificar que el termostato sea el especificado por el fabricante.<\/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 P0126<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>P0115<\/strong> \u2013 Sensor ECT: Circuito defectuoso<\/li>\n\n\n\n<li><strong>P0125<\/strong> \u2013 Temperatura insuficiente para operaci\u00f3n en lazo cerrado<\/li>\n\n\n\n<li><strong>P0128<\/strong> \u2013 Termostato: Temperatura del refrigerante por debajo de lo regulado<\/li>\n\n\n\n<li><strong>P0116<\/strong> \u2013 Sensor ECT: Rango\/funcionamiento incorrecto<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>El c\u00f3digo DTC P0126 indica que el motor no ha logrado..<\/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-1998","post","type-post","status-publish","format-standard","hentry","category-dtc","tag-codigos-dtc","tag-diagnosticos","tag-sistemas"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - 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