{"id":7756,"date":"2022-06-15T12:01:45","date_gmt":"2022-06-15T16:01:45","guid":{"rendered":"https:\/\/gm-techlinkfrench.com\/?p=7756"},"modified":"2022-09-15T12:06:42","modified_gmt":"2022-09-15T16:06:42","slug":"message-de-capot-ouvert-provenant-de-la-contamination-du-liquide-de-refroidissement","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=7756","title":{"rendered":"Message de capot ouvert provenant de la contamination du liquide de refroidissement"},"content":{"rendered":"<p style=\"font-weight: 400;\">Il peut y avoir un message de capot ouvert affich\u00e9 dans le centralisateur informatique de bord sur certains mod\u00e8les Impala 2014-2020 alors que le capot est compl\u00e8tement ferm\u00e9. Le t\u00e9moin d&#8217;anomalie (MIL) de v\u00e9rification du moteur peut \u00eatre allum\u00e9 et le code d&#8217;anomalie (DTC) P257D (performance du contacteur de capot du moteur) peut aussi \u00eatre \u00e9tabli.<\/p>\n<p style=\"font-weight: 400;\">Si ces conditions sont trouv\u00e9es, d\u00e9brancher la sonde de temp\u00e9rature de liquide de refroidissement du moteur (ECT) et v\u00e9rifier si le liquide de refroidissement fuit \u00e0 l&#8217;interne, provoquant un effet de m\u00e8che des circuits 410 et 2761. (Fig. 4)<\/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-16406\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2022\/06\/F04-hood-1.png\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 4<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\">Retracer les circuits jusqu&#8217;au connecteur X3 au module de commande du moteur (ECM). Rechercher toute contamination de liquide de refroidissement ou de corrosion aux broches 7, 8, 23 et 24. (Fig. 5)<\/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-16407\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2022\/06\/F05-hood-2.png\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 5<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\">La contamination peut causer un court-circuit \u00e0 travers les circuits 5350 et 470 aux broches 7 et 23, ce qui correspond au signal de contacteur de capot ouvert et \u00e0 la r\u00e9f\u00e9rence basse tension de capteur. (Fig. 6)<\/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-16408\" src=\"https:\/\/gm-techlink.com\/wp-content\/uploads\/2022\/06\/F06-hood-3.png\" alt=\"\" width=\"740\" height=\"480\" \/><strong>Fig. 6<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p style=\"font-weight: 400;\">Si la corrosion ou la d\u00e9coloration du liquide de refroidissement est trouv\u00e9e, remplacer les circuits 410 et 2761 de la sonde de temp\u00e9rature du liquide de refroidissement du moteur (ECT) au connecteur X3 de module de commande du moteur. Remplacer la sonde de temp\u00e9rature du liquide de refroidissement et remplacer ou nettoyer le connecteur X3 au module de commande du moteur (ECM).<\/p>\n<p style=\"font-weight: 400;\">Pour obtenir de plus amples renseignements et les num\u00e9ros de pi\u00e8ce, se reporter \u00e0 #PIC6460.<\/p>\n<p style=\"font-weight: 400;\"><em>&#8211; Merci \u00e0 David Antal<\/em><\/p>\n<p style=\"font-weight: 400;\">\n","protected":false},"excerpt":{"rendered":"<p>Il peut y avoir un message de capot ouvert affich\u00e9 dans le centralisateur informatique de bord sur certains mod\u00e8les Impala 2014-2020 alors que le capot est compl\u00e8tement ferm\u00e9. Le t\u00e9moin [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[45],"tags":[],"class_list":["post-7756","post","type-post","status-publish","format-standard","hentry","category-2022-june"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7756","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=7756"}],"version-history":[{"count":2,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7756\/revisions"}],"predecessor-version":[{"id":7758,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/7756\/revisions\/7758"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}