{"id":83,"date":"2022-12-29T12:11:01","date_gmt":"2022-12-29T11:11:01","guid":{"rendered":"https:\/\/fruba.pl\/canbus\/?page_id=83"},"modified":"2023-01-06T09:46:39","modified_gmt":"2023-01-06T08:46:39","slug":"fiats-can-bus","status":"publish","type":"page","link":"https:\/\/fruba.pl\/canbus\/fiats-can-bus\/","title":{"rendered":"Fiat&#8217;s CAN bus"},"content":{"rendered":"\n<p>As said in the <a href=\"https:\/\/fruba.pl\/canbus\/what-is-canbus\/\" data-type=\"page\" data-id=\"29\">general overview of a CAN bus network<\/a> &#8211; the Fiat has more than one CAN bus. As it&#8217;s rather simple car &#8211; it uses two buses: drivetrain CAN and infotainment CAN. Drivetrain CAN is responsible for the critical car components such as ECU, AIR-BAG, automatic gearbox and runs at a speed of 500kbps. The infotainment CAN is responsible for alle of the non-mission-critical information distribution such as the instrument cluster, radio, parking sensors, air conditioning etc. It runs at thw lower speed of 50kbps.<\/p>\n\n\n\n<p>Like most of the cars &#8211; the Fiat has also a third CAN bus, which is used for diagnostics (and it&#8217;s available in the OBD connector). However, unlike most of the cars &#8211; the gateway (which is built into BCM &#8211; <em>Board Control Module<\/em>) is not filtering any messages, so it&#8217;s simplier for us, hackers, to connect directly to any connector that has CAN bus available. Thanks to that, we can send diagnostic messages to the instrument cluster, without a need for using a gateway. Also, it allows us to send live data directly to the cluster, so we can use it for building our hardware simulators.<\/p>\n\n\n\n<p>I&#8217;ll provide all necessary wiring diagrams and pinouts on subpages of this page.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As said in the general overview of a CAN bus network &#8211; the Fiat has more than one CAN bus. As it&#8217;s rather simple car &#8211; it uses two buses: drivetrain CAN and infotainment CAN. Drivetrain CAN is responsible for the critical car components such as ECU, AIR-BAG, automatic gearbox and runs at a speed [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-83","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/pages\/83","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/comments?post=83"}],"version-history":[{"count":1,"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/pages\/83\/revisions"}],"predecessor-version":[{"id":84,"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/pages\/83\/revisions\/84"}],"wp:attachment":[{"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/media?parent=83"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}