{"id":3707,"date":"2025-10-17T10:45:30","date_gmt":"2025-10-17T08:45:30","guid":{"rendered":"https:\/\/diagzone.org\/?p=3707"},"modified":"2025-10-17T10:45:32","modified_gmt":"2025-10-17T08:45:32","slug":"iso-14230-4-kwp2000-a-guide-to-the-obd-ii-communication-protocol","status":"publish","type":"post","link":"https:\/\/diagzone.org\/cs\/iso-14230-4-kwp2000-a-guide-to-the-obd-ii-communication-protocol\/","title":{"rendered":"ISO 14230-4 (KWP2000): Pr\u016fvodce komunika\u010dn\u00edm protokolem OBD-II"},"content":{"rendered":"

ISO 14230-4, zn\u00e1m\u00fd tak\u00e9 jako KWP2000 (Keyword Protocol 2000), je komunika\u010dn\u00ed standard OBD-II vyvinut\u00fd pro diagnostiku vozidel. KWP2000 umo\u017e\u0148uje spolehlivou v\u00fdm\u011bnu dat mezi elektronick\u00fdmi \u0159\u00eddic\u00edmi jednotkami (ECU) a diagnostick\u00fdmi n\u00e1stroji pomoc\u00ed s\u00e9riov\u00e9 komunikace a \u201ekl\u00ed\u010dov\u00fdch slov\u201c pro zah\u00e1jen\u00ed p\u0159enosu dat.<\/p>\n\n\n\n

Jak funguje ISO 14230-4 (KWP2000)?<\/strong><\/p>\n\n\n\n

KWP2000 vyu\u017e\u00edv\u00e1 s\u00e9riovou komunikaci prost\u0159ednictv\u00edm K-linky, p\u0159i\u010dem\u017e k nav\u00e1z\u00e1n\u00ed spojen\u00ed mezi ECU a diagnostick\u00fdm n\u00e1strojem jsou k dispozici metody FastInit a SlowInit. P\u0159enosov\u00e1 rychlost m\u016f\u017ee dosahovat a\u017e 10,4 kb\/s, co\u017e umo\u017e\u0148uje \u010dten\u00ed a maz\u00e1n\u00ed chybov\u00fdch k\u00f3d\u016f DTC, p\u0159\u00edstup k \u017eiv\u00fdm dat\u016fm a ovl\u00e1d\u00e1n\u00ed jednotliv\u00fdch modul\u016f vozidla.<\/p>\n\n\n\n

OBD-II adapt\u00e9ry Launch podporuj\u00edc\u00ed tento protokol:<\/strong><\/p>\n\n\n\n

DBScar I, DBScar II, DBScar III, DBScar IV, DBScar V, DBScar VII<\/p>\n\n\n\n

Za\u0159\u00edzen\u00ed ThinkDiag podporuj\u00edc\u00ed tento protokol:<\/strong><\/p>\n\n\n\n

ThinkDiag, ThinkDiag 2<\/p>\n\n\n\n

Za\u0159\u00edzen\u00ed Ediag podporuj\u00edc\u00ed tento protokol:<\/strong><\/p>\n\n\n\n

Ediag YA-101, Ediag YA-201, Ediag Plus, Ediag Elite<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Typy vozidel a zna\u010dky podporovan\u00e9 protokolem:<\/strong><\/p>\n\n\n\n

Osobn\u00ed vozidla evropsk\u00fdch a asijsk\u00fdch v\u00fdrobc\u016f, p\u0159edev\u0161\u00edm Volkswagen, BMW, Mercedes-Benz, Audi, Honda, Toyota, Nissan, Mazda; modely z let 1996\u20132007.<\/p>\n\n\n\n

V\u00fdhody ISO 14230-4 (KWP2000)<\/strong><\/p>\n\n\n\n

    \n
  • Spolehliv\u00e1 a standardizovan\u00e1 komunikace pro diagnostiku OBD-II<\/li>\n\n\n\n
  • Podporuje pokro\u010dil\u00e9 diagnostick\u00e9 funkce v\u010detn\u011b \u010dten\u00ed senzor\u016f v re\u00e1ln\u00e9m \u010dase<\/li>\n\n\n\n
  • Flexibiln\u00ed pro r\u016fzn\u00e9 typy vozidel a elektronick\u00e9 moduly<\/li>\n\n\n\n
  • Kompatibiln\u00ed s r\u016fzn\u00fdmi s\u00e9riov\u00fdmi diagnostick\u00fdmi n\u00e1stroji<\/li>\n<\/ul>\n\n\n\n

    Nev\u00fdhody a omezen\u00ed<\/strong><\/p>\n\n\n\n

      \n
    • Ni\u017e\u0161\u00ed p\u0159enosov\u00e1 rychlost ve srovn\u00e1n\u00ed s modern\u00edmi protokoly CAN<\/li>\n\n\n\n
    • Vy\u017eaduje dodate\u010dnou konfiguraci pro inicializaci FastInit a SlowInit<\/li>\n\n\n\n
    • Postupn\u011b se st\u00e1v\u00e1 zastaral\u00fdm, jak nov\u011bj\u0161\u00ed vozidla p\u0159ech\u00e1zej\u00ed na standardy CAN a UDS<\/li>\n\n\n\n
    • Kompatibilita m\u016f\u017ee b\u00fdt omezen\u00e1 u velmi nov\u00fdch model\u016f vozidel<\/li>\n<\/ul>\n\n\n\n

      Pou\u017eit\u00ed ISO 14230-4 (KWP2000)<\/strong><\/p>\n\n\n\n

      KWP2000 se pou\u017e\u00edv\u00e1 ke \u010dten\u00ed a maz\u00e1n\u00ed chybov\u00fdch k\u00f3d\u016f DTC, kontrole senzorov\u00fdch dat, testov\u00e1n\u00ed modul\u016f a resetov\u00e1n\u00ed syst\u00e9m\u016f. Tento protokol je obzvl\u00e1\u0161t\u011b relevantn\u00ed pro star\u0161\u00ed a st\u0159edn\u011b star\u00e1 vozidla, kter\u00e1 st\u00e1le pou\u017e\u00edvaj\u00ed s\u00e9riovou komunikaci OBD-II.<\/p>\n\n\n\n

      Z\u00e1v\u011br<\/strong><\/p>\n\n\n\n

      ISO 14230-4 (KWP2000) je kl\u00ed\u010dov\u00fdm standardem pro pochopen\u00ed s\u00e9riov\u00e9 diagnostiky OBD-II. P\u0159esto\u017ee jej modern\u00ed protokoly postupn\u011b nahrazuj\u00ed, znalost KWP2000 z\u016fst\u00e1v\u00e1 nezbytn\u00e1 pro diagnostiky a techniky pracuj\u00edc\u00ed s cel\u00fdm spektrem vozidel, zejm\u00e9na se star\u0161\u00edmi a st\u0159edn\u011b star\u00fdmi modely.<\/p>","protected":false},"excerpt":{"rendered":"

      ISO 14230-4, also known as KWP2000 (Keyword Protocol 2000), is an OBD-II communication standard developed for vehicle diagnostics. KWP2000 enables reliable data exchange between electronic control units (ECUs) and diagnostic tools, using serial communication and \u201ckeywords\u201d to initiate data transfer. How Does ISO 14230-4 (KWP2000) Work? KWP2000 uses serial communication over the K-line, with FastInit…<\/p>","protected":false},"author":1,"featured_media":3709,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"ISO14230-4 (KWP2000): a guide to OBD-II protocol","_seopress_titles_desc":"ISO 14230-4 (KWP2000) is a key standard for understanding serial OBD-II diagnostics. While modern protocols gradually replace it.","_seopress_robots_index":"","inline_featured_image":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_themeisle_gutenberg_block_has_review":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"iawp_total_views":293,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3707","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}]},"featured_image_src_large":["https:\/\/diagzone.org\/wp-content\/uploads\/2025\/10\/ISO-14230-4-KWP2000.jpg",600,600,false],"author_info":{"display_name":"diagzone","author_link":"https:\/\/diagzone.org\/cs\/author\/xpro5\/"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":33,"filter":"raw","cat_ID":1,"category_count":33,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/posts\/3707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/comments?post=3707"}],"version-history":[{"count":1,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/posts\/3707\/revisions"}],"predecessor-version":[{"id":3712,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/posts\/3707\/revisions\/3712"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/media\/3709"}],"wp:attachment":[{"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/media?parent=3707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/categories?post=3707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diagzone.org\/cs\/wp-json\/wp\/v2\/tags?post=3707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}