{"id":389500,"date":"2022-06-09T15:03:01","date_gmt":"2022-06-09T15:03:01","guid":{"rendered":"https:\/\/obd-diag.fr\/?p=389500"},"modified":"2023-06-26T11:26:37","modified_gmt":"2023-06-26T11:26:37","slug":"quelle-est-la-difference-entre-obd-1-et-2","status":"publish","type":"post","link":"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/","title":{"rendered":"What is the difference between OBD 1 and 2?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Summary<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Contents\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Diagnostic_Embarque_OBD_Guide_Complet\" title=\"On-Board Diagnostics (OBD): Complete Guide\">On-Board Diagnostics (OBD): Complete Guide<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Introduction_Comprendre_les_Fondamentaux_de_lOBD\" title=\"Introduction: Understanding OBD Fundamentals\">Introduction: Understanding OBD Fundamentals<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Quest-ce_que_le_Diagnostic_OBD\" title=\"What is OBD Diagnostic?\">What is OBD Diagnostic?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Les_Composants_Cles_dun_Vehicule\" title=\"The Key Components of a Vehicle\">The Key Components of a Vehicle<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#PDS_Partial_Disassembly_Service\" title=\"PDS (Partial Disassembly Service)\">PDS (Partial Disassembly Service)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#PCM_Powertrain_Control_Module\" title=\"PCM (Powertrain Control Module)\">PCM (Powertrain Control Module)<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#PDU_Unite_de_Donnees_Programmables\" title=\"PDU (Programmable Data Unit)\">PDU (Programmable Data Unit)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Fonctionnement_du_Diagnostic_OBD\" title=\"How OBD Diagnostic works\">How OBD Diagnostic works<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Les_Codes_OBD\" title=\"OBD Codes\">OBD Codes<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Prise_OBD_Un_Outil_Indispensable\" title=\"OBD socket: An essential tool\">OBD socket: An essential tool<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Cest_quoi_une_Prise_OBD\" title=\"What is an OBD socket?\">What is an OBD socket?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Comment_Utiliser_une_Prise_OBD\" title=\"How to Use an OBD Socket?\">How to Use an OBD Socket?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#Difference_entre_les_Prises_OBD1_et_OBD2\" title=\"Difference between OBD1 and OBD2 Sockets\">Difference between OBD1 and OBD2 Sockets<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/obd-diag.fr\/en\/quelle-est-la-difference-entre-obd-1-et-2\/#En_Conclusion\" title=\"In conclusion\">In conclusion<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Diagnostic_Embarque_OBD_Guide_Complet\"><\/span>On-Board Diagnostics (OBD): Complete Guide<span class=\"ez-toc-section-end\"><\/span><\/h1><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Introduction_Comprendre_les_Fondamentaux_de_lOBD\"><\/span>Introduction: Understanding OBD Fundamentals<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>It\u2019s all in the name, \u201cOn Board Diagnostics\u201d<\/strong> (OBD). Standard <strong>OBD-I<\/strong> was published in <em>1975<\/em> by <strong>Bosch<\/strong>, and the standard <strong>OBD-II<\/strong> was published in <em>1996<\/em> over there <strong>Society of Automotive Engineers (SAE)<\/strong>, not by the European Commission as indicated previously.<\/p><p>Older vehicles only had one level of diagnostics (OBD I), but most modern vehicles use OBD II for safety and performance reasons.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Quest-ce_que_le_Diagnostic_OBD\"><\/span>What is OBD Diagnostic?<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Les_Composants_Cles_dun_Vehicule\"><\/span>The Key Components of a Vehicle<span class=\"ez-toc-section-end\"><\/span><\/h3><p>THE <strong>original equipment manufacturer (OEM)<\/strong> supplies all the parts, systems and labor that go into manufacturing a vehicle. This includes the engine, transmission, chassis and other major components, but also aftermarket accessories such as audio or navigation systems.<\/p><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PDS_Partial_Disassembly_Service\"><\/span>PDS (Partial Disassembly Service)<span class=\"ez-toc-section-end\"><\/span><\/h4><p>This is a service that allows parts of your car to be dismantled and repaired without having to take it to a workshop. For example, replacing a headlight bulb or fitting new tires.<\/p><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PCM_Powertrain_Control_Module\"><\/span>PCM (Powertrain Control Module)<span class=\"ez-toc-section-end\"><\/span><\/h4><p>It is the brain of the engine. This module controls several aspects of engine operation, including fuel injection, ignition timing, emissions control and much more.<\/p><h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"PDU_Unite_de_Donnees_Programmables\"><\/span>PDU (Programmable Data Unit)<span class=\"ez-toc-section-end\"><\/span><\/h4><p>This device is programmed by the dealer with all the information necessary for the operation of the vehicle. It is usually found under the hood.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Fonctionnement_du_Diagnostic_OBD\"><\/span>How OBD Diagnostic works<span class=\"ez-toc-section-end\"><\/span><\/h3><p>The on-board diagnostic system consists of two main elements:<\/p><ol class=\"wp-block-list\"><li>A component that <strong>analysis<\/strong> information from the car&#039;s sensors.<\/li>\n\n<li>A component that <strong>poster<\/strong> these informations.<\/li><\/ol><p>Le diagnostic OBD est essentiel pour v\u00e9rifier les performances des unit\u00e9s de contr\u00f4le \u00e9lectronique (<a href=\"https:\/\/obd-diag.fr\/en\/product\/renolink-programmateur-ecu-v1-94-v1-87-cable-de-diagnostic-obd2-interface-pour-renault-dacia-codage-de-cle-airbag-reno-link-1-87\/\">ECU<\/a>) et pour identifier les d\u00e9fauts qui peuvent \u00eatre r\u00e9par\u00e9s automatiquement ou n\u00e9cessitent l&#8217;intervention d&#8217;un professionnel.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Les_Codes_OBD\"><\/span>OBD Codes<span class=\"ez-toc-section-end\"><\/span><\/h3><p>The on-board diagnostic code is a series of letters and numbers accessible via the dashboard. There are different types of OBD codes, including warning codes which are indicators of potential safety issues.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Prise_OBD_Un_Outil_Indispensable\"><\/span>OBD socket: An essential tool<span class=\"ez-toc-section-end\"><\/span><\/h2><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Cest_quoi_une_Prise_OBD\"><\/span>What is an OBD socket?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>Every car has a diagnostic trouble code (DTC), which is stored on a memory chip inside the ECU. If there is a problem, the ECU sends a signal to the OBD port which triggers a warning light on the dashboard.<\/p><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Comment_Utiliser_une_Prise_OBD\"><\/span>How to Use an OBD Socket?<span class=\"ez-toc-section-end\"><\/span><\/h3><p>To exploit this technology, you must:<\/p><ol class=\"wp-block-list\"><li>Connect a cord from the OBD reader to a computer via the USB port.<\/li>\n\n<li>Install the software from a CD.<\/li>\n\n<li>Run the program.<\/li>\n\n<li>The program will search for the codes.<\/li>\n\n<li>If a code indicates a problem, it will be displayed.<\/li>\n\n<li>You can run the program until all codes are found.<\/li>\n\n<li>Press \u201cClear\u201d to remove the codes.<\/li>\n\n<li>Press \u201cSave\u201d to save the information.<\/li>\n\n<li>Close the program.<\/li><\/ol><h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Difference_entre_les_Prises_OBD1_et_OBD2\"><\/span>Difference between OBD1 and OBD2 Sockets<span class=\"ez-toc-section-end\"><\/span><\/h3><p><strong>OBD1<\/strong> is used for cars before the year 2000 and has a plug-in type configuration. <strong>OBD2<\/strong> is used for cars after 2000 and has a socket type configuration.<\/p><p>OBD2 is more advanced, with high current output, two digital data lines, four analog signal lines, and three ground lines.<\/p><h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"En_Conclusion\"><\/span>In conclusion<span class=\"ez-toc-section-end\"><\/span><\/h2><p><strong>OBD<\/strong> is an essential technology for vehicle diagnosis and maintenance. It is important to understand how it works and how to use it effectively to ensure the performance and safety of your vehicle.<\/p>","protected":false},"excerpt":{"rendered":"<p>Diagnostic Embarqu\u00e9 (OBD): Guide Complet Introduction: Comprendre les Fondamentaux de l&#8217;OBD Tout est dans le nom, &#8220;On Board Diagnostics&#8221; (OBD). La norme OBD-I a \u00e9t\u00e9 publi\u00e9e en 1975 par Bosch, et la norme OBD-II a \u00e9t\u00e9 publi\u00e9e en 1996 par la Society of Automotive Engineers (SAE), non pas par la Commission europ\u00e9enne comme indiqu\u00e9 auparavant. [&hellip;]<\/p>","protected":false},"author":1,"featured_media":394494,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-389500","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-obd-diag-fr"],"acf":[],"featured_image_src":{"landsacpe":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/06\/Quelle-est-la-difference-entre-OBD-1-et-2.png",890,445,false],"list":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/06\/Quelle-est-la-difference-entre-OBD-1-et-2.png",463,232,false],"medium":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/06\/Quelle-est-la-difference-entre-OBD-1-et-2-300x150.png",300,150,true],"full":["https:\/\/obd-diag.fr\/wp-content\/uploads\/2023\/06\/Quelle-est-la-difference-entre-OBD-1-et-2.png",2560,1280,false]},"_links":{"self":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts\/389500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/comments?post=389500"}],"version-history":[{"count":0,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/posts\/389500\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/media\/394494"}],"wp:attachment":[{"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/media?parent=389500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/categories?post=389500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/obd-diag.fr\/en\/wp-json\/wp\/v2\/tags?post=389500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}