{"id":154,"date":"2023-01-06T16:05:45","date_gmt":"2023-01-06T15:05:45","guid":{"rendered":"https:\/\/fruba.pl\/canbus\/?page_id=154"},"modified":"2024-10-30T18:23:58","modified_gmt":"2024-10-30T17:23:58","slug":"can-messages","status":"publish","type":"page","link":"https:\/\/fruba.pl\/canbus\/can-messages\/","title":{"rendered":"CAN messages"},"content":{"rendered":"

On the subpages of this page – you’ll find my findings regarding the Fiat’s CAN messages<\/p>\n\n\n

CAN ID (11 bit)<\/th>CAN ID (29 bit)<\/th>Function<\/th>Length<\/th>Comment<\/th><\/tr><\/thead>
0x180<\/a><\/td>0x02214000<\/a><\/td>Lights & convenience<\/td>5 bytes<\/td><\/td><\/tr>
0x281<\/a><\/td>0x04214001<\/a><\/td>Engine status<\/td>8 bytes<\/td><\/td><\/tr>
0x282<\/a><\/td><\/td>Power steering<\/td><\/td><\/td><\/tr>
0x2A0<\/a><\/td>0x04294000<\/a><\/td>Speed<\/td>4 bytes<\/td>RPM’s in 0x281 must be higher than 0<\/td><\/tr>
0x380<\/a><\/td>0x06214000<\/a><\/td>Vehicle electrics<\/td>8 bytes<\/td><\/td><\/tr>
0x3C0<\/td><\/td>Steering lockout<\/td><\/td><\/td><\/tr>
0x545<\/td><\/td>Car radio status (+frequency)<\/td><\/td><\/td><\/tr>
0x565<\/td><\/td>RDS message body<\/td>7 bytes<\/td><\/td><\/tr>
0x6D7<\/td><\/td>Diagnostic message, set date & time<\/td>6 bytes<\/td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

These are the messages I know so far. All of them will be described on subpages of this page. Some of the values are bit-based (e.g. B00000001 – something is on, B00000000 – something is off) and can be summarized into one byte (e.g. B00000001 (0x01) + B00000010 (0x02) equals B00000011 (0x03) and so on).<\/p>\n\n\n\n

CAN bus is quite idiot-proof \ud83d\ude09 so – to simplify things – you can always send 8-byte long messages despite the actual length expected by the controller (it will simply ignore extra bytes) as long, as the last\/non-existent bytes will be 0x00.<\/p>\n","protected":false},"excerpt":{"rendered":"

On the subpages of this page – you’ll find my findings regarding the Fiat’s CAN messages CAN ID (11 bit) CAN ID (29 bit) Function Length Comment 0x180 0x02214000 Lights & convenience 5 bytes 0x281 0x04214001 Engine status 8 bytes 0x282 Power steering 0x2A0 0x04294000 Speed 4 bytes RPM’s in 0x281 must be higher than […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-154","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/pages\/154","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=154"}],"version-history":[{"count":18,"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/pages\/154\/revisions"}],"predecessor-version":[{"id":250,"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/pages\/154\/revisions\/250"}],"wp:attachment":[{"href":"https:\/\/fruba.pl\/canbus\/wp-json\/wp\/v2\/media?parent=154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}