{"id":9041,"date":"2026-01-09T14:49:35","date_gmt":"2026-01-09T19:49:35","guid":{"rendered":"https:\/\/gm-techlinkfrench.com\/?p=9041"},"modified":"2026-03-09T14:55:05","modified_gmt":"2026-03-09T18:55:05","slug":"conseils-de-diagnostic-en-cas-daffichage-dun-ecran-vide","status":"publish","type":"post","link":"https:\/\/gm-techlinkfrench.com\/?p=9041","title":{"rendered":"Conseils de diagnostic en cas d&#8217;affichage d&#8217;un \u00e9cran vide"},"content":{"rendered":"<p>Un affichage vide ou noir affectant le tableau de bord, l&#8217;\u00e9cran d&#8217;infodivertissement ou les deux, sur certains mod\u00e8les Silverado, Tahoe, Suburban, HUMMER EV, Sierra et Yukon 2022-2026; XT4 2024-2025; Encore GX, Envision, Envista, LYRIQ, Blazer EV, Colorado, Equinox, Equinox EV, Silverado HD, Silverado EV, Sierra HD, Sierra EV, Trailblazer, Traverse, Trax, Acadia, Canyon 2024-2026; CT5 2025; Enclave, CELESTIQ, Escalade, ESCALADE IQ, OPTIQ, Terrain 2025-2026; et VISTIQ 2026. Cela peut \u00eatre d\u00fb \u00e0 plusieurs probl\u00e8mes potentiels, notamment des probl\u00e8mes logiciels et mat\u00e9riels. Ces affichages d&#8217;infodivertissement et de tableau de bord comprennent l&#8217;\u00e9quipement facultatif commun des syst\u00e8mes (RPO) IVA, IVD, IVE et IOK (Fig. 5).<\/p>\n<p style=\"text-align: center;\">\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9042\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F05-Blank-3.png\" alt=\"\" width=\"740\" height=\"480\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F05-Blank-3.png 740w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F05-Blank-3-300x195.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F05-Blank-3-200x130.png 200w\" sizes=\"auto, (max-width: 740px) 100vw, 740px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 5<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>La derni\u00e8re version du document #PIC6629 recommande un certain nombre de conseils de diagnostic et fournit des r\u00e9f\u00e9rences \u00e0 des ressources PI suppl\u00e9mentaires pour les probl\u00e8mes suivants :<\/p>\n<ul>\n<li>Dommages physiques<\/li>\n<li>Tout l&#8217;affichage ou les deux affichages sont vides<\/li>\n<li>Un seul affichage est vide<\/li>\n<li>L&#8217;affichage de l&#8217;autoradio et\/ou du tableau de bord (IPC) clignote ou s&#8217;\u00e9teint, mais revient ensuite<\/li>\n<li>L&#8217;\u00e9cran tactile de l&#8217;autoradio ne r\u00e9pond pas aux commandes tactiles ou ne r\u00e9pond pas<\/li>\n<li>Le bouton de volume, le bouton Home (Accueil) et\/ou le bouton Power\/Mute (Marche\/Sourdine) ne fonctionnent pas<\/li>\n<li>Un ou plusieurs boutons physiques du syst\u00e8me CVC ne fonctionnent pas.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>CONSEIL :<\/strong> si l&#8217;affichage d&#8217;un v\u00e9hicule s&#8217;est \u00e9teint ou est devenu noir \u00e0 un moment donn\u00e9, mais qu&#8217;il n&#8217;est actuellement ni \u00e9teint ni noir, mettre \u00e0 jour l&#8217;autoradio avec le dernier logiciel, effacer tous les codes d&#8217;anomalie (DTC) et essayer de reproduire le probl\u00e8me signal\u00e9 par le client avant de poursuivre le diagnostic.<\/p>\n<p>Les conditions d&#8217;affichage sp\u00e9cifiques pouvant \u00eatre rencontr\u00e9es sur un v\u00e9hicule et les proc\u00e9dures de diagnostic associ\u00e9es couvertes dans #PIC6629 comprennent :<\/p>\n<p><strong>L&#8217;affichage est r\u00e9tro\u00e9clair\u00e9, mais aucune image ne s&#8217;affiche<\/strong>. Si le r\u00e9tro\u00e9clairage fonctionne, mais qu&#8217;aucune image n&#8217;appara\u00eet, cela signifie que l&#8217;affichage est sous tension, mais que le signal de l&#8217;autoradio est peut-\u00eatre faible ou que la connexion est mauvaise.<\/p>\n<p><strong>L&#8217;affichage semble \u00e9teint (pas de r\u00e9tro\u00e9clairage)<\/strong> \u2013 Si l&#8217;autoradio est allum\u00e9e et communique avec l&#8217;outil de diagnostic, le probl\u00e8me provient peut-\u00eatre de l&#8217;autoradio et non de l&#8217;affichage (Fig. 6).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9043\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F06-Blank-1.png\" alt=\"\" width=\"1593\" height=\"776\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F06-Blank-1.png 1593w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F06-Blank-1-300x146.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F06-Blank-1-1024x499.png 1024w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F06-Blank-1-768x374.png 768w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F06-Blank-1-1536x748.png 1536w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F06-Blank-1-780x380.png 780w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F06-Blank-1-1160x565.png 1160w\" sizes=\"auto, (max-width: 1593px) 100vw, 1593px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 6<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Un ou les deux affichages clignotent et deviennent noirs, mais reviennent par la suite<\/strong> \u2013 Les connexions d&#8217;alimentation et de mise \u00e0 la terre au niveau des affichages ou du c\u00e2ble LVDS entre l&#8217;affichage et l&#8217;autoradio peuvent pr\u00e9senter un probl\u00e8me de connexion (Fig. 7).<\/p>\n<p>&nbsp;<\/p>\n<p style=\"text-align: center;\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-9044\" src=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F07-Blank-2.png\" alt=\"\" width=\"1476\" height=\"711\" srcset=\"https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F07-Blank-2.png 1476w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F07-Blank-2-300x145.png 300w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F07-Blank-2-1024x493.png 1024w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F07-Blank-2-768x370.png 768w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F07-Blank-2-780x376.png 780w, https:\/\/gm-techlinkfrench.com\/wp-content\/uploads\/2026\/03\/F07-Blank-2-1160x559.png 1160w\" sizes=\"auto, (max-width: 1476px) 100vw, 1476px\" \/><\/p>\n<p style=\"text-align: center;\"><strong>Fig. 7<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>L&#8217;\u00e9cran tactile de l&#8217;autoradio ne r\u00e9pond pas aux commandes ou l&#8217;autoradio semble red\u00e9marrer<\/strong> \u2013 V\u00e9rifier les connexions au niveau de l&#8217;affichage, puis d\u00e9brancher et rebrancher la batterie.<\/p>\n<p><strong>Bouton de volume, bouton d&#8217;accueil et\/ou bouton d&#8217;alimentation\/sourdine inop\u00e9rants<\/strong> \u2013 V\u00e9rifier que les boutons du volant fonctionnent avant de poursuivre le diagnostic.<\/p>\n<p><strong>Les boutons physiques du syst\u00e8me CVC ne fonctionnent pas<\/strong> \u2013 V\u00e9rifier le contr\u00f4le du syst\u00e8me CVC via l&#8217;\u00e9cran tactile.<\/p>\n<p>Lors du diagnostic, veiller \u00e0 toujours v\u00e9rifier les codes d&#8217;anomalie (DTC) et, si l&#8217;affichage revient \u00e0 la normale, mettre \u00e0 jour le logiciel de l&#8217;autoradio.<\/p>\n<p>Se reporter \u00e0 la r\u00e9f\u00e9rence #PIC6629 pour obtenir les instructions compl\u00e8tes.<\/p>\n<p>&nbsp;<\/p>\n<p><em>&#8211; Merci \u00e0 Steve Morris<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un affichage vide ou noir affectant le tableau de bord, l&#8217;\u00e9cran d&#8217;infodivertissement ou les deux, sur certains mod\u00e8les Silverado, Tahoe, Suburban, HUMMER EV, Sierra et Yukon 2022-2026; XT4 2024-2025; Encore [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[],"class_list":["post-9041","post","type-post","status-publish","format-standard","hentry","category-2026-january"],"_links":{"self":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9041","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=9041"}],"version-history":[{"count":1,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9041\/revisions"}],"predecessor-version":[{"id":9045,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=\/wp\/v2\/posts\/9041\/revisions\/9045"}],"wp:attachment":[{"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9041"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9041"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gm-techlinkfrench.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9041"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}