{"id":3714,"date":"2024-09-09T11:15:27","date_gmt":"2024-09-09T09:15:27","guid":{"rendered":"https:\/\/www.diagnosedan.com\/?p=3714"},"modified":"2024-09-09T11:15:27","modified_gmt":"2024-09-09T09:15:27","slug":"nouveaux-fichiers-tsb-mis-en-ligne-pour-juillet-aout-2024","status":"publish","type":"post","link":"https:\/\/www.diagnosedan.com\/fr\/newly-uploaded-tsbs-july-august-2024\/","title":{"rendered":"TSB r\u00e9cemment mis en ligne : juillet\/ao\u00fbt 2024"},"content":{"rendered":"<h3>TSB r\u00e9cemment mis en ligne en juillet\/ao\u00fbt 2024 :<\/h3>\n<h4>Restez inform\u00e9 des derniers bulletins techniques (TSB) publi\u00e9s pour juillet et ao\u00fbt 2024. Avec 229 nouveaux bulletins techniques et 99 mises \u00e0 jour, nous vous fournissons des informations essentielles pour aider les m\u00e9caniciens automobiles \u00e0 relever les derniers d\u00e9fis du secteur. Ces bulletins, qui traitent de probl\u00e8mes courants tels que les fuites de liquide de refroidissement et les pannes de climatisation sur les mod\u00e8les hybrides, sont con\u00e7us pour garantir le bon fonctionnement et l'efficacit\u00e9 de votre atelier.<\/h4>\n<h3>Exemple 1 :<\/h3>\n<h2>TSB n\u00b0 11084 \u2013 Perte de liquide de refroidissement et probl\u00e8mes de climatisation sur les mod\u00e8les hybrides du groupe VAG :<\/h2>\n<p>Dans les bulletins techniques (TSB) r\u00e9cemment publi\u00e9s, des probl\u00e8mes majeurs tels que la perte de liquide de refroidissement sur les mod\u00e8les hybrides ont \u00e9t\u00e9 mis en \u00e9vidence. Sur certains mod\u00e8les hybrides du groupe VAG, tels que l'Audi A3, la VW Golf et la Skoda Octavia, un probl\u00e8me courant mais d\u00e9routant, impliquant une perte de liquide de refroidissement et parfois une panne de climatisation, peut survenir. Ce bulletin technique aborde les causes sous-jacentes et propose des solutions pratiques pour ces mod\u00e8les, ce qui permet de gagner du temps en atelier.<\/p>\n<h4>Sympt\u00f4mes typiques :<\/h4>\n<ul>\n<li>Perte de liquide de refroidissement dans le r\u00e9servoir de liquide de refroidissement haute tension : ce syst\u00e8me de refroidissement est essentiel pour la batterie hybride et les autres composants haute tension.<\/li>\n<li>Performances insuffisantes du syst\u00e8me de climatisation : il se peut que la climatisation ne refroidisse pas correctement en raison de probl\u00e8mes li\u00e9s \u00e0 la pression du fluide frigorig\u00e8ne.<\/li>\n<li>Plusieurs codes d'erreur ont \u00e9t\u00e9 enregistr\u00e9s, tels que :<br \/>\nB10ABF0 \u2013 Pression du fluide frigorig\u00e8ne de la climatisation trop faible (par intermittence)<br \/>\nP0C4A00 \u2013 Pompe de refroidissement de batterie hybride\/haute tension 1 \u2013 Signal anormal<br \/>\nP139C00 \u2013 Capteur 2 de l'indicateur de liquide de refroidissement, niveau de liquide bas<br \/>\nP16C600 \u2013 Pompe de r\u00e9frig\u00e9rant suppl\u00e9mentaire, fonctionnement \u00e0 sec<\/li>\n<\/ul>\n<h4>Ces mod\u00e8les PHEV sont \u00e9quip\u00e9s de deux r\u00e9servoirs de liquide de refroidissement distincts :<\/h4>\n<p>Un circuit haute temp\u00e9rature pour le moteur \u00e0 combustion.<br \/>\nUn circuit \u00e0 basse temp\u00e9rature pour le syst\u00e8me du v\u00e9hicule \u00e9lectrique, y compris la batterie de ce dernier.<\/p>\n<p><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2.jpg\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-medium wp-image-3717 aligncenter\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2-300x186.jpg\" alt=\"Compartiment moteur de la Volkswagen Golf GTE\" width=\"300\" height=\"186\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2-300x186.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2-1024x636.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2-768x477.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2-18x12.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2-500x311.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2-250x155.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-2.jpg 1490w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Le circuit \u00e0 basse temp\u00e9rature (destin\u00e9 au syst\u00e8me EV) est refroidi par le compresseur de climatisation \u00e9lectrique V470, qui \u00e9vacue la chaleur du liquide de refroidissement \u00e0 l'aide d'une pompe de circulation V590, maintenant ainsi la temp\u00e9rature entre 20 et 40 \u00b0C. La chaleur du liquide de refroidissement est transf\u00e9r\u00e9e au fluide frigorig\u00e8ne via l'\u00e9changeur de chaleur haute tension, commun\u00e9ment appel\u00e9 \u201c Chiller \u201d.\u201d<\/p>\n<p>Si le niveau de liquide de refroidissement est insuffisant dans le r\u00e9servoir \u00e9tanche (1), cela peut indiquer une fuite interne de la batterie. Il convient d\u2019\u00eatre vigilant, car de nombreux voyants s\u2019allument pour alerter le conducteur en cas de niveau insuffisant de liquide de refroidissement. Si un d\u00e9faut d\u2019isolation est \u00e9galement signal\u00e9, la r\u00e9paration doit \u00eatre confi\u00e9e \u00e0 un technicien certifi\u00e9 sp\u00e9cialis\u00e9 dans les v\u00e9hicules \u00e9lectriques en raison du risque d\u2019instabilit\u00e9 de la batterie.<\/p>\n<p>Si la fuite se situe \u00e0 l'ext\u00e9rieur de la batterie, vous pouvez la r\u00e9parer et faire l'appoint de liquide de refroidissement. Veillez toutefois \u00e0 purger correctement le circuit de refroidissement conform\u00e9ment aux consignes du constructeur, \u00e0 l'aide d'un outil de diagnostic. La pr\u00e9sence d'air dans le circuit de refroidissement peut entra\u00eener une surchauffe de la batterie. En raison du caract\u00e8re critique de ce circuit de refroidissement, le niveau du r\u00e9servoir est surveill\u00e9 par un capteur de niveau (G837).<\/p>\n<p><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2.jpg\"><img decoding=\"async\" class=\"size-medium wp-image-3718 aligncenter\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2-300x194.jpg\" alt=\"R\u00e9servoir de liquide de refroidissement haute tension\" width=\"300\" height=\"194\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2-300x194.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2-1024x664.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2-768x498.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2-1536x996.jpg 1536w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2-18x12.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2-500x324.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2-250x162.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/5220_2.jpg 1626w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n<p>Le probl\u00e8me de perte de liquide de refroidissement dans le r\u00e9servoir de liquide de refroidissement du v\u00e9hicule \u00e9lectrique est g\u00e9n\u00e9ralement d\u00fb \u00e0 une fuite dans le refroidisseur, qui assure le transfert de chaleur entre le fluide frigorig\u00e8ne et le liquide de refroidissement pour refroidir la batterie (comme mentionn\u00e9 pr\u00e9c\u00e9demment). En raison de la pression plus \u00e9lev\u00e9e dans le circuit frigorifique, une fuite au niveau du refroidisseur provoque l\u2019intrusion de fluide frigorig\u00e8ne dans le circuit de refroidissement, \u201c expulsant \u201d ainsi le liquide de refroidissement du r\u00e9servoir. Cela entra\u00eene une perte de liquide de refroidissement et d\u00e9clenche plusieurs codes d\u2019erreur.<\/p>\n<p><strong>Remarque :<\/strong> Selon l'importance de la fuite dans le groupe frigorifique, ce dysfonctionnement peut ne pas d\u00e9clencher de codes d'erreur li\u00e9s au circuit frigorifique aux premiers stades de la fuite. Dans ce cas, le seul sympt\u00f4me perceptible peut \u00eatre la perte de fluide frigorig\u00e8ne.<\/p>\n<figure id=\"attachment_3720\" aria-describedby=\"caption-attachment-3720\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1.jpg\"><img decoding=\"async\" class=\"size-medium wp-image-3720\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1-300x110.jpg\" alt=\"Refroidisseur\" width=\"300\" height=\"110\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1-300x110.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1-1024x376.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1-768x282.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1-1536x565.jpg 1536w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1-18x7.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1-500x184.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1-250x92.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11084-1.jpg 1806w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-3720\" class=\"wp-caption-text\">\u00c9changeur de chaleur pour batterie de v\u00e9hicule \u00e9lectrique<\/figcaption><\/figure>\n<p>Ce probl\u00e8me peut \u00eatre difficile \u00e0 diagnostiquer en raison de son caract\u00e8re intermittent, mais comprendre le r\u00f4le du groupe frigorifique dans ces syst\u00e8mes aidera les techniciens \u00e0 le r\u00e9soudre plus rapidement.<\/p>\n<p>Vous trouverez ci-dessous une vid\u00e9o illustrant les sympt\u00f4mes de ce probl\u00e8me en cas de fuite importante au niveau du groupe frigorifique.<\/p>\n<div class=\"video-container\"><iframe title=\"Vid\u00e9o DDTSB n\u00b0 11084\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/zjz2h7v_mgs?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<p>Ce TSB est facile \u00e0 trouver dans DDTSB en effectuant une recherche par mots-cl\u00e9s tels que \u201c Liquide de refroidissement \u201d ou en s\u00e9lectionnant l\u2019un des sympt\u00f4mes dynamiques pr\u00e9s\u00e9lectionn\u00e9s, comme \u00ab D\u00e9faillance du syst\u00e8me EV\/hybride \u00bb. Vous pouvez \u00e9galement rechercher les codes d'erreur pertinents (s'il y en a qui ont \u00e9t\u00e9 enregistr\u00e9s) pour localiser plus efficacement ce TSB. Ce TSB comprend \u00e0 la fois un guide au format PDF et une vid\u00e9o, gr\u00e2ce aux contributions de nos utilisateurs.<\/p>\n<h3>Nouvelle d\u00e9cision DDTSB n\u00b0 11084<\/h3>\n<p><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3722 aligncenter\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084-300x133.jpg\" alt=\"\" width=\"300\" height=\"133\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084-300x133.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084-1024x455.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084-768x342.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084-1536x683.jpg 1536w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084-18x8.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084-500x222.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084-250x111.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11084.jpg 1909w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<h2>Exemple 2 :<\/h2>\n<h2>D\u00e9faut du syst\u00e8me \u00ab Travel Assist \u00bb sur les mod\u00e8les Volkswagen :<\/h2>\n<p>Les mod\u00e8les Volkswagen r\u00e9cents, \u00e0 partir de 2020, sont \u00e9quip\u00e9s du Travel Assist, un syst\u00e8me avanc\u00e9 d\u2019aide \u00e0 la conduite qui permet au v\u00e9hicule d\u2019utiliser l\u2019aide au maintien de voie et l\u2019ADAS (Advanced Driver Assistance System) d\u00e8s lors que le conducteur effleure simplement le volant. Cela diff\u00e8re des mod\u00e8les pr\u00e9c\u00e9dents, sur lesquels le syst\u00e8me exigeait un l\u00e9ger couple ou une l\u00e9g\u00e8re correction du volant pour d\u00e9tecter en permanence que le conducteur restait attentif \u00e0 la route.<\/p>\n<figure id=\"attachment_3724\" aria-describedby=\"caption-attachment-3724\" style=\"width: 300px\" class=\"wp-caption alignleft\"><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/travel-assist-button.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3724\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/travel-assist-button-300x220.jpg\" alt=\"\" width=\"300\" height=\"220\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/travel-assist-button-300x220.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/travel-assist-button-768x564.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/travel-assist-button-16x12.jpg 16w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/travel-assist-button-500x367.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/travel-assist-button-250x184.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/travel-assist-button.jpg 1024w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-3724\" class=\"wp-caption-text\">Bouton d'assistance au d\u00e9placement<\/figcaption><\/figure>\n<p>Le nouveau syst\u00e8me utilise un capteur tactile \u00ab Hands-On Detection \u00bb (HOD) int\u00e9gr\u00e9 au volant pour d\u00e9tecter la pr\u00e9sence du conducteur, ce qui le rend plus pratique que l\u2019ancien syst\u00e8me de d\u00e9tection bas\u00e9 sur le couple. Ce syst\u00e8me s'inscrit dans le cadre de l'automatisation de conduite de niveau 2 (automatisation partielle), qui permet aux conducteurs de confier au syst\u00e8me la responsabilit\u00e9 du guidage longitudinal et lat\u00e9ral dans des situations sp\u00e9cifiques. Toutefois, le conducteur doit toujours \u00eatre pr\u00eat \u00e0 reprendre le contr\u00f4le du v\u00e9hicule si n\u00e9cessaire.<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>Le volant est compos\u00e9 de plusieurs couches, notamment une armature, deux couches de mousse, un rev\u00eatement dot\u00e9 d\u2019un capteur capacitif et un rev\u00eatement en cuir. Le capteur capacitif d\u00e9tecte lorsque le conducteur touche le volant. Il est int\u00e9gr\u00e9 entre les couches de mousse et reli\u00e9 \u00e0 l'unit\u00e9 de commande de d\u00e9tection de contact du volant J1158. Cette unit\u00e9 fournit une tension alternative aux \u00e9lectrodes de mesure. Une tr\u00e8s faible capacit\u00e9 est g\u00e9n\u00e9r\u00e9e lorsqu'aucun objet ne touche le volant, ce qui entra\u00eene un faible passage de courant entre l'\u00e9lectrode et la masse de la carrosserie. Le tapis se compose de deux \u00e9lectrodes : une \u00e9lectrode de blindage, qui isole l\u2019\u00e9lectrode de d\u00e9tection de la partie interne du volant, et une \u00e9lectrode de d\u00e9tection qui agit comme une plaque de condensateur. La carrosserie du v\u00e9hicule fait office de deuxi\u00e8me plaque reli\u00e9e \u00e0 la masse, tandis que la mousse, le cuir et l\u2019air jouent le r\u00f4le de di\u00e9lectrique. L'unit\u00e9 de commande envoie des signaux \u00e0 l'unit\u00e9 de r\u00e9gulateur de vitesse adaptatif J428 via le bus LIN, qui est \u00e9galement reli\u00e9 \u00e0 l'unit\u00e9 de commande du volant multifonction J453. Le syst\u00e8me s'assure que les mains du conducteur sont sur le volant, ce qui est indispensable au bon fonctionnement du syst\u00e8me Travel Assist. Malheureusement, les garages signalent de plus en plus souvent des dysfonctionnements li\u00e9s \u00e0 ce syst\u00e8me. Le capteur \u00e9tant int\u00e9gr\u00e9 au volant, la r\u00e9paration n\u00e9cessite le remplacement complet de ce dernier, ce qui peut s\u2019av\u00e9rer tr\u00e8s co\u00fbteux.<\/p>\n<figure id=\"attachment_3725\" aria-describedby=\"caption-attachment-3725\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3725\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1-300x144.jpg\" alt=\"\" width=\"300\" height=\"144\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1-300x144.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1-1024x491.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1-768x369.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1-1536x737.jpg 1536w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1-18x9.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1-500x240.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1-250x120.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/11018_1.jpg 1834w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-3725\" class=\"wp-caption-text\">Volant avec d\u00e9tection de la pr\u00e9sence des mains<\/figcaption><\/figure>\n<h3>Codes d'erreur courants :<\/h3>\n<p>En cas de dysfonctionnement du syst\u00e8me Travel Assist, les codes d'erreur suivants peuvent \u00eatre enregistr\u00e9s :<br \/>\n\u2013 B17B8F2 \u2013 D\u00e9tection tactile du volant \u2013 D\u00e9faut du capteur<br \/>\n\u2013 U133E00 \u2013 Module de commande de la d\u00e9tection tactile du volant \u2013 Absence de communication<br \/>\n\u2013 U112300 \u2013 Bus de donn\u00e9es, valeur d'erreur re\u00e7ue<\/p>\n<h3>Avertissements :<\/h3>\n<figure id=\"attachment_3727\" aria-describedby=\"caption-attachment-3727\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3727\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1-300x122.jpg\" alt=\"\" width=\"300\" height=\"122\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1-300x122.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1-1024x418.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1-768x313.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1-1536x627.jpg 1536w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1-18x7.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1-500x204.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1-250x102.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/Warning-1.jpg 1916w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-3727\" class=\"wp-caption-text\">Avertissement \u00ab Travel Assist \u00bb<\/figcaption><\/figure>\n<p>Solution pratique :<\/p>\n<ul>\n<li>V\u00e9rifiez s'il existe des campagnes d'entretien : il se peut que le constructeur ait lanc\u00e9 une campagne d'entretien sur certains mod\u00e8les afin de r\u00e9soudre ce probl\u00e8me connu.<\/li>\n<li>Remplacer le volant : si le tapis tactile est d\u00e9fectueux, il faudra remplacer l'ensemble du volant, car le capteur y est int\u00e9gr\u00e9.<\/li>\n<li>V\u00e9rifiez les lignes de communication Linbus : assurez-vous que la communication entre l'unit\u00e9 de commande du capteur et la passerelle du v\u00e9hicule est correcte afin d'exclure tout probl\u00e8me de c\u00e2blage.<\/li>\n<li>R\u00e9initialiser le syst\u00e8me : apr\u00e8s avoir remplac\u00e9 les composants n\u00e9cessaires, effectuez une r\u00e9initialisation du syst\u00e8me afin d'effacer les codes d'erreur et de v\u00e9rifier que le syst\u00e8me fonctionne correctement.<\/li>\n<\/ul>\n<h3>Remarque finale :<\/h3>\n<p>En raison du co\u00fbt \u00e9lev\u00e9 d'un nouveau volant, certains garages choisissent de mettre en place une solution de \u201c contournement \u201d qui fait croire au syst\u00e8me d'aide \u00e0 la conduite que le conducteur a toujours les mains sur le volant. Nous conseillons aux garages professionnels de bien r\u00e9fl\u00e9chir avant de recourir \u00e0 cette solution, car cela pourrait entra\u00eener des situations dangereuses dans lesquelles le conducteur serait en mesure de conduire sans toucher le volant. Si un accident se produisait et que cette modification s'av\u00e9rait en \u00eatre la cause, le garage responsable pourrait faire face \u00e0 de graves cons\u00e9quences.<\/p>\n<h3>Nouvelle d\u00e9cision DDTSB n\u00b0 11018<\/h3>\n<figure id=\"attachment_3726\" aria-describedby=\"caption-attachment-3726\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3726\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018-300x136.jpg\" alt=\"\" width=\"300\" height=\"136\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018-300x136.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018-1024x464.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018-768x348.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018-1536x697.jpg 1536w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018-18x8.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018-500x227.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018-250x113.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-11018.jpg 1914w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-3726\" class=\"wp-caption-text\">DDTSB n\u00b0 11018<\/figcaption><\/figure>\n<h2>Exemple 3 :<\/h2>\n<h2>Probl\u00e8mes li\u00e9s au GPF chez Renault \/ Dacia :<\/h2>\n<p>Les techniciens travaillant sur <strong>Renault et Dacia<\/strong> mod\u00e8les avec le <strong>Moteur 1,3 TCe (H5H)<\/strong>, notamment celles provenant de <strong>\u00c0 partir de 2018<\/strong>, peuvent rencontrer des probl\u00e8mes avec le <strong>Filtre \u00e0 particules pour essence (GPF)<\/strong> syst\u00e8me. Un probl\u00e8me courant est la d\u00e9faillance du <strong>capteur de pression diff\u00e9rentielle<\/strong>, qui surveille le bon fonctionnement du GPF. Lorsque ce capteur tombe en panne, cela d\u00e9clenche souvent le <strong>t\u00e9moin \u00ab Check Engine \u00bb<\/strong>, en enregistrant les codes d'erreur tels que <strong>P2453 \/ P2453 29 \/ DTC245329 (selon la mani\u00e8re dont votre outil de diagnostic interpr\u00e8te le code d'erreur)<\/strong><\/p>\n<p>Le <strong>capteur de pression diff\u00e9rentielle<\/strong> joue un r\u00f4le crucial dans le suivi des performances de la <strong>Filtre \u00e0 particules pour essence (GPF)<\/strong> syst\u00e8me. Cependant, le diagnostic des probl\u00e8mes li\u00e9s \u00e0 ce capteur peut s'av\u00e9rer particuli\u00e8rement difficile en raison de son utilisation de <strong>Signaux SENT (Single Edge Nibble Transmission)<\/strong>. De nombreux techniciens ignorent peut-\u00eatre que ce capteur fonctionne en mode SENT, ce qui peut entra\u00eener des erreurs de diagnostic. Si vous essayez de diagnostiquer ce capteur \u00e0 l'aide d'un voltm\u00e8tre classique, vous risquez de ne pas observer de variations de tension significatives pendant la conduite, ce qui pourrait vous amener \u00e0 rechercher la cause d'un probl\u00e8me qui n'est pas celui qui se pose r\u00e9ellement.<\/p>\n<p>Depuis environ <strong>2017<\/strong>, de plus en plus de capteurs \u00e9quipant les v\u00e9hicules modernes utilisent la technologie SENT. Le d\u00e9fi pour de nombreux techniciens consiste simplement \u00e0 savoir si le capteur sur lequel ils travaillent fonctionne avec un syst\u00e8me de communication SENT. Sans cette information, les techniciens risquent d\u2019interpr\u00e9ter de mani\u00e8re erron\u00e9e les donn\u00e9es du capteur et de poser un diagnostic erron\u00e9 concernant le <strong>GPF<\/strong> comme \u00e9tant d\u00e9fectueux, au lieu de reconna\u00eetre le v\u00e9ritable probl\u00e8me li\u00e9 au syst\u00e8me bas\u00e9 sur SENT <strong>capteur de pression diff\u00e9rentielle<\/strong>.<\/p>\n<figure id=\"attachment_3741\" aria-describedby=\"caption-attachment-3741\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3741\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1-300x147.jpg\" alt=\"\" width=\"300\" height=\"147\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1-300x147.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1-1024x503.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1-768x377.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1-18x9.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1-500x246.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1-250x123.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/10885_1.jpg 1156w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-3741\" class=\"wp-caption-text\">Capteur de pression GPF<\/figcaption><\/figure>\n<p>Le <strong>caract\u00e8re intermittent<\/strong> Ces d\u00e9faillances des capteurs ajoutent une couche suppl\u00e9mentaire de complexit\u00e9 au processus de diagnostic. Sans les outils ad\u00e9quats ni la ma\u00eetrise de l'interpr\u00e9tation des signaux SENT, il devient difficile de d\u00e9terminer la nature exacte du probl\u00e8me, ce qui complique encore davantage les r\u00e9parations.<\/p>\n<ul>\n<li>Solution pratique<br \/>\nV\u00e9rifiez le c\u00e2blage : assurez-vous que le c\u00e2blage entre le capteur et l'ECU est en bon \u00e9tat. V\u00e9rifiez que l'alimentation 5 V et la masse sont stables.<\/li>\n<li>Remplacer le module de capteurs : si le c\u00e2blage est en bon \u00e9tat, le remplacement du module de capteurs fourni constitue g\u00e9n\u00e9ralement la solution, car tous les capteurs sont regroup\u00e9s au sein d'un m\u00eame module.<\/li>\n<\/ul>\n<h3>Nouvelle norme DDTSB n\u00b0 10885 :<\/h3>\n<figure id=\"attachment_3742\" aria-describedby=\"caption-attachment-3742\" style=\"width: 211px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/2024-09-09_10h56_01.png\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3742\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/2024-09-09_10h56_01-211x300.png\" alt=\"\" width=\"211\" height=\"300\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/2024-09-09_10h56_01-211x300.png 211w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/2024-09-09_10h56_01-8x12.png 8w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/2024-09-09_10h56_01-352x500.png 352w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/2024-09-09_10h56_01-176x250.png 176w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/2024-09-09_10h56_01.png 494w\" sizes=\"(max-width: 211px) 100vw, 211px\" \/><\/a><figcaption id=\"caption-attachment-3742\" class=\"wp-caption-text\">DDTSB n\u00b0 10885<\/figcaption><\/figure>\n<p>Ce probl\u00e8me met en \u00e9vidence la complexit\u00e9 des syst\u00e8mes modernes de surveillance des gaz d\u2019\u00e9chappement, mais il peut \u00eatre r\u00e9solu efficacement gr\u00e2ce \u00e0 une approche diagnostique adapt\u00e9e. Si vous ignorez que ces capteurs utilisent des signaux SENT, cela pourrait induire en erreur votre diagnostic. Dans ce bulletin technique (TSB), nous faisons \u00e9galement r\u00e9f\u00e9rence \u00e0 deux m\u00e9thodes de mesure (programmes d'autoformation) qui expliquent les principes de fonctionnement de base des signaux SENT et comment utiliser la proc\u00e9dure de d\u00e9codage PICO pour analyser le signal.<\/p>\n<figure id=\"attachment_3731\" aria-describedby=\"caption-attachment-3731\" style=\"width: 300px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3731\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding-300x134.jpg\" alt=\"\" width=\"300\" height=\"134\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding-300x134.jpg 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding-1024x456.jpg 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding-768x342.jpg 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding-1536x684.jpg 1536w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding-18x8.jpg 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding-500x223.jpg 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding-250x111.jpg 250w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2024\/09\/DDTSB-Measuring-Method-SENT-PICO-decoding.jpg 1886w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><figcaption id=\"caption-attachment-3731\" class=\"wp-caption-text\">M\u00e9thode de mesure DDTSB : d\u00e9codage SENT PICO<\/figcaption><\/figure>\n<h3 style=\"text-align: center;\">Optimisez l'efficacit\u00e9 de votre atelier gr\u00e2ce \u00e0 DDTSB. Acc\u00e9dez \u00e0 une vaste base de donn\u00e9es contenant des milliers de TSB exclusifs du march\u00e9 des pi\u00e8ces de rechange pour am\u00e9liorer la pr\u00e9cision de vos diagnostics, gagner du temps et r\u00e9ussir vos r\u00e9parations d\u00e8s la premi\u00e8re intervention. DDTSB : votre investissement pour des solutions plus rapides et une rentabilit\u00e9 accrue. Le temps, c'est de l'argent : \u00e9conomisez les deux gr\u00e2ce \u00e0 \u00a0<a href=\"http:\/\/www.ddtsb.com\/\" target=\"_new\" rel=\"noopener\">DDTSB<\/a><a href=\"http:\/\/www.ddtsb.com\"><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-3378 aligncenter\" src=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-300x47.png\" alt=\"Logo de DiagnoseDanTSB\" width=\"300\" height=\"47\" srcset=\"https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-300x47.png 300w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-1024x162.png 1024w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-768x122.png 768w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-1536x243.png 1536w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-2048x324.png 2048w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-18x3.png 18w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-500x79.png 500w, https:\/\/www.diagnosedan.com\/wp-content\/uploads\/2023\/08\/DD_TSB_LOGO-250x40.png 250w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/h3>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Newly uploaded TSBs July\/August 2024: Stay updated with the newly uploaded TSBs for July and August 2024. With 229 new TSBs and 99 updates, we provide vital information to help auto mechanics tackle the latest automotive challenges. These bulletins, including common issues like coolant loss and A\/C failure in hybrid models, are designed to keep 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