{"id":7920,"date":"2023-03-08T01:00:24","date_gmt":"2023-03-08T06:00:24","guid":{"rendered":"https:\/\/gm-techlinkfrench.com\/?p=7920"},"modified":"2023-05-08T15:16:15","modified_gmt":"2023-05-08T19:16:15","slug":"des-fusibles-ouverts-provoquent-la-memorisation-de-codes-danomalie-de-bougie-de-prechauffage","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=7920","title":{"rendered":"Des fusibles ouverts provoquent la m\u00e9morisation de codes d&#8217;anomalie de bougie de pr\u00e9chauffage"},"content":{"rendered":"<p style=\"font-weight: 400;\">Le t\u00e9moin MIL de v\u00e9rification du moteur et plusieurs codes d&#8217;anomalie li\u00e9s aux bougies de pr\u00e9chauffage peuvent \u00eatre activ\u00e9s sur certains mod\u00e8les Silverado 2500HD\/3500HD et Sierra 2500HD\/3500HD de 2024 \u00e9quip\u00e9s du moteur diesel Duramax de 6,6 litres (EFC L5P). Parmi les codes d&#8217;anomalie pouvant \u00eatre m\u00e9moris\u00e9s dans le module de commande du moteur (ECM)\u00a0:<\/p>\n<ul>\n<li>P066A (circuit de commande de bougie de pr\u00e9chauffage du cylindre 1 bas)<\/li>\n<li>P066C (circuit de commande de bougie de pr\u00e9chauffage du cylindre 2 bas)<\/li>\n<li>P066E (circuit de commande de bougie de pr\u00e9chauffage du cylindre 3 bas)<\/li>\n<li>P067A (circuit de commande de bougie de pr\u00e9chauffage du cylindre 4 bas)<\/li>\n<li>P067C (circuit de commande de bougie de pr\u00e9chauffage du cylindre 5 bas)<\/li>\n<li>P067E (circuit de commande de bougie de pr\u00e9chauffage du cylindre 6 bas)<\/li>\n<li>P068C (circuit de commande de bougie de pr\u00e9chauffage du cylindre 7 bas)<\/li>\n<li>P068E (circuit de commande de bougie de pr\u00e9chauffage du cylindre 8 bas)<\/li>\n<\/ul>\n<p style=\"font-weight: 400;\">Si le fusible F5 (F5BA) est ouvert, les cylindres 1, 4, 6 et 7 d\u00e9clenchent simultan\u00e9ment les codes d&#8217;anomalie P066A, P067A, P067E et P068C. Un fusible F6 (F6BA) ouvert entra\u00eene l&#8217;activation simultan\u00e9e des codes d&#8217;anomalie P066C, P066E, P067C et P068E pour les cylindres 2, 3, 5 et 8.<\/p>\n<p style=\"font-weight: 400;\">En outre, des dommages aux bornes du connecteur X950D \u00e0 55 voies peuvent entra\u00eener la m\u00e9morisation des codes d&#8217;anomalie P0671, P0672, P0673, P0674, P0675, P0676, P0677 ou P0678 du circuit de commande de bougies de pr\u00e9chauffage.<\/p>\n<p style=\"font-weight: 400;\">Avant de remplacer des bougies de pr\u00e9chauffage ou d&#8217;y toucher, v\u00e9rifier qu&#8217;aucun fusible de l&#8217;unit\u00e9 de distribution de batterie (BDU) n&#8217;est grill\u00e9. (Fig. 15) S&#8217;assurer de la pr\u00e9sence de 12\u00a0V sur la borne annulaire de la BDU tout en remuant le c\u00e2ble. Certains fusibles grill\u00e9s \u00e9tablissent un contact par intermittence.<\/p>\n<p style=\"font-weight: 400;\">Si un fusible est intermittent ou ouvert, remplacer l&#8217;ensemble BDU. Veiller \u00e0 serrer toutes les fixations au couple sp\u00e9cifi\u00e9. Ne pas serrer excessivement. L&#8217;\u00e9crou de 10 mm doit \u00eatre serr\u00e9 \u00e0 6 Nm. Les \u00e9crous de 13 mm doivent \u00eatre serr\u00e9s \u00e0 15 Nm.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400; text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17388\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2023\/03\/F15-blown-fuse-1.png\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 15<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\">V\u00e9rifier \u00e9galement que les bornes du connecteur X950D \u00e0 55 voies ne sont pas pli\u00e9es. (Fig. 16) Le connecteur X950D peut \u00eatre s\u00e9par\u00e9 en d\u00e9sengageant la fixation CPA rouge et en serrant les coins du connecteur.<\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400; text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-17389\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2023\/03\/F16-blown-fuse-2.png\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 16<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\">Pour plus de renseignements, se reporter au PIP5911.<\/p>\n<p style=\"font-weight: 400;\"><em>&#8211; Merci \u00e0 Steven Ulch<\/em><\/p>\n<p style=\"font-weight: 400;\"><em>\u00a0<\/em><\/p>\n<p style=\"font-weight: 400;\"><em>\u00a0<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Le t\u00e9moin MIL de v\u00e9rification du moteur et plusieurs codes d&#8217;anomalie li\u00e9s aux bougies de pr\u00e9chauffage peuvent \u00eatre activ\u00e9s sur certains mod\u00e8les Silverado 2500HD\/3500HD et Sierra 2500HD\/3500HD de 2024 \u00e9quip\u00e9s [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[50],"tags":[],"class_list":["post-7920","post","type-post","status-publish","format-standard","hentry","category-2023-march"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7920","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7920"}],"version-history":[{"count":2,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7920\/revisions"}],"predecessor-version":[{"id":7950,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7920\/revisions\/7950"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}