{"id":1288,"date":"2015-06-01T10:00:45","date_gmt":"2015-06-01T14:00:45","guid":{"rendered":"http:\/\/commons.pratt.edu\/open-source\/?p=416"},"modified":"2015-06-01T10:00:45","modified_gmt":"2015-06-01T14:00:45","slug":"obdii-breakout-board","status":"publish","type":"post","link":"https:\/\/www.kornequipped.com\/blog\/?p=1288","title":{"rendered":"OBDII Breakout Board"},"content":{"rendered":"\n<p>Sometimes I need to work on a car&#8217;s PCM but dont want to go out to the garage. I made a little breakout board so I can run it on the bench. Great for making tunes for other people. Just have them bring over the PCM and you can flash it and send them on their way&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0086.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>I used a standard ALDL connector so any ODBII tool will connect. great for writing scan tool code too.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0087.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>There is a small toggle switch that controls the ignition line to the PCM<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0088.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>I test connectivity first with a $12 ELM327 and ElmScan since I dont want to hurt the expensive $500 HP Tuners box&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0089.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>When the ELM327 works I connect up with HP Tuners<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0090.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>It only takes 4 wires. you see a 5th wire here because one wire had to go to two pins&#8230;.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0091.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>There are some nice pinout guides out there for bench flashing most PCM&#8217;s<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0092.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>You can even add a gauge cluster<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0093.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>This only needs 3 wires.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/IMG_0094.JPG\" alt=\"\" \/><\/figure>\n\n\n\n<p>Air Bag Modules can be scanned too. Don&#8217;t expect to find much info out there on these&#8230;&#8230;..<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/es.pratt.edu\/Commons\/Images\/technology\/obdii\/obdii7.png\" alt=\"\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Sometimes I need to work on a car&#8217;s PCM but dont want to go out to the garage. I made a little breakout board so I can run it on the bench. Great for making tunes for other people. Just have them bring over the PCM and you can flash it and send them on [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7,17],"tags":[],"class_list":["post-1288","post","type-post","status-publish","format-standard","hentry","category-automotive","category-tools"],"_links":{"self":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1288"}],"version-history":[{"count":0,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1288\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kornequipped.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}