{"id":461163,"date":"2026-07-31T14:12:50","date_gmt":"2026-07-31T18:12:50","guid":{"rendered":"https:\/\/autosphere.ca\/?p=461163"},"modified":"2026-07-31T14:12:50","modified_gmt":"2026-07-31T18:12:50","slug":"leau-est-le-pire-ennemi-de-lelectronique-automobile","status":"publish","type":"post","link":"https:\/\/autosphere.ca\/fr\/mecanique\/2026\/07\/31\/leau-est-le-pire-ennemi-de-lelectronique-automobile\/","title":{"rendered":"L\u2019eau est le pire ennemi de l\u2019\u00e9lectronique automobile"},"content":{"rendered":"<p><strong>Votre client vous a-t-il d\u00e9j\u00e0 mentionn\u00e9 : \u00ab J\u2019ai une lumi\u00e8re qui s&rsquo;allume de fa\u00e7on intermittente et j&rsquo;ai l&rsquo;impression que la voiture a de la difficult\u00e9 \u00e0 freiner \u00bb ?<\/strong><\/p>\n<p><span style=\"font-style: normal; font-variant: normal; text-decoration: none;\">Pour ma part, les nombreuses fois o\u00f9 j&rsquo;ai entendu ce genre de chose, le syst\u00e8me ABS \u00e9tait toujours en cause. Analyseur en main, je prends d&rsquo;abord le temps de faire un scan complet de chaque module pour v\u00e9rifier si d&rsquo;autres codes d&rsquo;erreur risquent d&rsquo;allumer des t\u00e9moins d&rsquo;anomalie. Une fois le v\u00e9hicule mont\u00e9 sur le pont \u00e9l\u00e9vateur, je prends toujours le temps de v\u00e9rifier visuellement les contacts ainsi que les connecteurs du syst\u00e8me ABS.<\/span><\/p>\n<p><span style=\"font-style: normal; font-variant: normal; text-decoration: none;\">\u00c0 d\u00e9faut d&rsquo;\u00eatre chanceux, on peut facilement trouver le probl\u00e8me en moins de 60 minutes avec le bon outillage (photo 1). Parfois, le probl\u00e8me peut \u00eatre beaucoup plus difficile \u00e0 trouver et vous donner des maux de t\u00eate, comme le montre ce fil qui a eu une intrusion d&rsquo;eau au cours des ann\u00e9es et a caus\u00e9 du vert-de-gris \u00e0 l&rsquo;int\u00e9rieur de la gaine (photo 2). Pourtant, l&rsquo;ensemble des fils est prot\u00e9g\u00e9 et l&rsquo;eau a quand m\u00eame fait des d\u00e9g\u00e2ts.<\/span><\/p>\n<p><span style=\"font-style: normal; font-variant: normal; text-decoration: none;\">Premi\u00e8re source des probl\u00e8mes \u00e9lectriques dans la m\u00e9canique, qu&rsquo;ils soient intermittents ou non, l&rsquo;eau ne donne aucun r\u00e9pit, surtout ici au Qu\u00e9bec quand elle se combine avec le calcium. Notre climat s\u00e9v\u00e8re n&rsquo;aide pas \u00e0 garder nos voitures en bonne sant\u00e9.<\/span><\/p>\n<p><span style=\"font-style: normal; font-variant: normal; text-decoration: none;\">Les probl\u00e8mes li\u00e9s au syst\u00e8me ABS sur certains mod\u00e8les de voitures am\u00e9ricaines peuvent devenir un enjeu de s\u00e9curit\u00e9 tr\u00e8s grave. G\u00e9n\u00e9ralement, lorsque votre client voit une anomalie sur le tableau de bord, vous devriez lui expliquer qu\u2019il doit communiquer avec vous le plus t\u00f4t possible afin de d\u00e9terminer la source de l\u2019erreur et de la corriger.<\/span><\/p>\n<p><span style=\"font-style: normal; font-variant: normal; text-decoration: none;\">Mais comme vous le savez d\u00e9j\u00e0, parfois ces personnes attendent d&rsquo;\u00eatre remorqu\u00e9es pour penser \u00e0 vous.<\/span><\/p>\n<p><span style=\"font-style: normal; font-variant: normal; text-decoration: none;\">J&rsquo;ai d\u00e9j\u00e0 per\u00e7u justement, sur une Chrysler 300, des probl\u00e8mes d&rsquo;ABS qui \u00e9taient caus\u00e9s par deux capteurs de vitesse de roue d\u00e9fectueux. Comme les calculateurs de la transmission et du moteur se basent sur la vitesse du v\u00e9hicule pour passer les rapports et changer de vitesse, une d\u00e9faillance majeure de l&rsquo;ABS contraint le v\u00e9hicule \u00e0 passer en mode de protection (<\/span><span style=\"font-style: italic; font-variant: normal; text-decoration: none;\">limp mode<\/span><span style=\"font-style: normal; font-variant: normal; text-decoration: none;\">) limitant la vitesse \u00e0 environ 30 km\/h dans ce cas. \u00c0 cette vitesse, sur une autoroute \u00e0 plus de 100 km\/h, ce comportement repr\u00e9sente un danger r\u00e9el et imm\u00e9diat.<\/span><\/p>\n<p><span style=\"font-style: normal; font-variant: normal; text-decoration: none;\">Prenez bien le temps de faire vos diagnostics avec le bon outillage, ainsi vos tests seront beaucoup plus rapides et pr\u00e9cis. Bon diagnostic \u00e0 tous !<\/span><\/p>\n<div class=\"w-gallery fit_cover wp_gallery type_grid action_popup_image ratio_1x1 count_2\" style=\"--columns:2;--items-gap:8px;\"><div class=\"w-gallery-list\"><div class=\"w-gallery-item\"><div class=\"w-gallery-item-img\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/PhotoA1-1-23-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/PhotoA1-1-23-150x150.jpg 150w, https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/PhotoA1-1-23-160x160.jpg 160w, https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/PhotoA1-1-23-300x300.jpg 300w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/div><a class=\"w-gallery-item-link\" aria-label=\"PhotoA1 (1)\" href=\"https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/PhotoA1-1-23.jpg\" title=\"PhotoA1 (1)\"><\/a><\/div><div class=\"w-gallery-item\"><div class=\"w-gallery-item-img\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/photo-2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/photo-2-150x150.jpg 150w, https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/photo-2-160x160.jpg 160w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/div><a class=\"w-gallery-item-link\" aria-label=\"photo 2\" href=\"https:\/\/autosphere.ca\/wp-content\/uploads\/2026\/07\/photo-2.jpg\" title=\"photo 2\"><\/a><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Votre client vous a-t-il d\u00e9j\u00e0 mentionn\u00e9 : \u00ab J\u2019ai une lumi\u00e8re qui s&rsquo;allume de fa\u00e7on intermittente et j&rsquo;ai l&rsquo;impression que la voiture a de la difficult\u00e9 \u00e0 freiner \u00bb ? Pour ma part, les nombreuses fois o\u00f9 j&rsquo;ai entendu ce genre de chose, le syst\u00e8me ABS \u00e9tait toujours en cause. Analyseur en main, je prends&#8230;<\/p>\n","protected":false},"author":47,"featured_media":461164,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[820,632],"tags":[10424],"class_list":["post-461163","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mecanique-editorial","category-mecanique","tag-electronique-automobile"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>L\u2019eau est le pire ennemi de l\u2019\u00e9lectronique automobile - Autosphere<\/title>\n<meta name=\"description\" content=\"Votre client vous a-t-il d\u00e9j\u00e0 mentionn\u00e9 : \u00ab J\u2019ai une lumi\u00e8re qui s&#039;allume de fa\u00e7on intermittente et j&#039;ai l&#039;impression que la voiture a de la difficult\u00e9 \u00e0 freiner \u00bb ? : \u00ab J\u2019ai une lumi\u00e8re qui s&#039;allume de fa\u00e7on intermittente et j&#039;ai l&#039;impression que la voiture a de la difficult\u00e9 \u00e0 freiner \u00bb ?\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/autosphere.ca\/fr\/mecanique\/2026\/07\/31\/leau-est-le-pire-ennemi-de-lelectronique-automobile\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u2019eau est le pire ennemi de l\u2019\u00e9lectronique automobile\" \/>\n<meta property=\"og:description\" content=\"Votre client vous a-t-il d\u00e9j\u00e0 mentionn\u00e9 : \u00ab J\u2019ai une lumi\u00e8re qui s&#039;allume de fa\u00e7on intermittente et j&#039;ai l&#039;impression que la voiture a de la difficult\u00e9 \u00e0 freiner \u00bb ? : \u00ab J\u2019ai une lumi\u00e8re qui 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