{"id":7337,"date":"2026-04-12T17:59:48","date_gmt":"2026-04-12T17:59:48","guid":{"rendered":"https:\/\/gm-techlinkspanish.com\/?p=7337"},"modified":"2026-05-12T18:01:39","modified_gmt":"2026-05-12T18:01:39","slug":"verifique-el-conector-de-55-vias-si-los-codigos-dtc-relacionados-con-bujias-prec-estan-establecidos","status":"publish","type":"post","link":"https:\/\/gm-techlinkspanish.com\/?p=7337","title":{"rendered":"Verifique el conector de 55 v\u00edas si los c\u00f3digos DTC relacionados con Buj\u00edas prec est\u00e1n establecidos"},"content":{"rendered":"<p>Es posible que varios c\u00f3digos DTC relacionados con las buj\u00edas prec est\u00e9n establecidos en algunas camionetas Silverado 2500HD\/3500HD y Sierra 2500HD\/3500HD 2024-2026 equipados con el motor di\u00e9sel Duramax de 6.6L (RPO L5P).<\/p>\n<p>Los DTC pueden incluir:<\/p>\n<ul>\n<li>P066A (Circuito de control de buj\u00eda del cilindro 1 bajo)<\/li>\n<li>P066C (Circuito de control de buj\u00eda del cilindro 2 bajo)<\/li>\n<li>P066E (Circuito de control de buj\u00eda del cilindro 3 bajo)<\/li>\n<li>P067A (Circuito de control de buj\u00eda del cilindro 4 bajo)<\/li>\n<li>P067C (Circuito de control de buj\u00eda del cilindro 5 bajo)<\/li>\n<li>P067E (Circuito de control de buj\u00eda del cilindro 6 bajo)<\/li>\n<li>P068C (Circuito de control de buj\u00eda del cilindro 7 bajo)<\/li>\n<li>P068E (Circuito de control de buj\u00eda del cilindro 8 bajo)<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Estos c\u00f3digos DTC pueden ser causados por un fusible fundido o una terminal doblada en el conector de 55 v\u00edas X950D (Arn\u00e9s de cableado del chasis al motor de Arn\u00e9s de cableado del motor).<\/p>\n<p>Si el fusible F5 (F5BA) est\u00e1 abierto, resultar\u00e1 en que los cilindros 1, 4, 6 y 7 establezcan c\u00f3digos DTC simult\u00e1neamente. Si el fusible F6 (F6BA) est\u00e1 abierto, resultar\u00e1 en que los cilindros 2,3,5 y 8 establezcan c\u00f3digos DTC simult\u00e1neamente.<\/p>\n<p>Los da\u00f1os de terminal del conector de 55 v\u00edas X950D tambi\u00e9n resultar\u00e1n en el establecimiento de c\u00f3digos DTC individuales.<\/p>\n<p><strong>CONSEJO:<\/strong> No reemplace ni manipule ninguna buj\u00eda prec antes de verificar si hay alguna terminal doblada en el Ensamble de fusibles de la unidad de distribuci\u00f3n de la bater\u00eda (BDU) (Fig. 1) en el conector de 55 v\u00edas X950D.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-7340\" src=\"https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F01-Fuse-3.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F01-Fuse-3.png 740w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F01-Fuse-3-300x195.png 300w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F01-Fuse-3-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 1<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Verifique si hay alg\u00fan fusible fundido<\/strong><\/p>\n<p>Verifique si hay 12 voltios en la terminal de anillo de la BDU mientras mueves el cable. (Fig. 2) En algunos casos de fusibles fundidos, har\u00e1n contacto de forma intermitente. Si el contacto del fusible es intermitente o si el fusible est\u00e1 fundido, puede que sea necesario reemplazar el ensamble BDU.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-7339\" src=\"https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F02-Fuse-1-1024x734.png\" alt=\"\" width=\"740\" height=\"530\" srcset=\"https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F02-Fuse-1-1024x734.png 1024w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F02-Fuse-1-300x215.png 300w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F02-Fuse-1-768x550.png 768w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F02-Fuse-1-780x559.png 780w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F02-Fuse-1-1160x831.png 1160w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F02-Fuse-1.png 1200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 2<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Separe el conector X950D desconectando el CPA rojo y apretando las esquinas del conector. Verifique si hay terminales dobladas en el conector X950D (Fig. 3) que puedan provocar el establecimiento de los c\u00f3digos DTC P0671, P0672, P0673, P0674, P0675, P0676, P0677 y\/o P0678 del circuito de control de Buj\u00edas prec.<\/p>\n<p style=\"text-align: center;\">\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-large wp-image-7338\" src=\"https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F03-Fuse-2-1024x688.png\" alt=\"\" width=\"740\" height=\"497\" srcset=\"https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F03-Fuse-2-1024x688.png 1024w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F03-Fuse-2-300x202.png 300w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F03-Fuse-2-768x516.png 768w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F03-Fuse-2-780x524.png 780w, https:\/\/gm-techlinkspanish.com\/wp-content\/uploads\/2026\/05\/F03-Fuse-2.png 1123w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 3<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Consulte el Bolet\u00edn #26-NA-077 para obtener informaci\u00f3n adicional.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Gracias a Larry Yaw<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Es posible que varios c\u00f3digos DTC relacionados con las buj\u00edas prec est\u00e9n establecidos en algunas camionetas Silverado 2500HD\/3500HD y Sierra 2500HD\/3500HD 2024-2026 equipados con el motor di\u00e9sel Duramax de 6.6L [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[90],"tags":[],"class_list":["post-7337","post","type-post","status-publish","format-standard","hentry","category-2026-april"],"_links":{"self":[{"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=\/wp\/v2\/posts\/7337","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7337"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=\/wp\/v2\/posts\/7337\/revisions"}],"predecessor-version":[{"id":7341,"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=\/wp\/v2\/posts\/7337\/revisions\/7341"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7337"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7337"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkspanish.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7337"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}