{"id":518995,"date":"2025-12-11T04:17:04","date_gmt":"2025-12-11T09:17:04","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/"},"modified":"2025-12-11T04:17:04","modified_gmt":"2025-12-11T09:17:04","slug":"dtc-u0013-medium-speed-can-communication-bus-low","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/","title":{"rendered":"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">U0013<\/div>\n<h1>U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide<\/h1>\n<p class=\"hero-subtitle\">\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>U0013 = Medium\u2011Speed CAN Communication Bus (+) low voltage. <\/li>\n<li>Typical warnings: intermittent interior lighting, non\u2011functional power windows, door\u2011lock glitches, and a persistent \u201cU0013\u201d message on the dash. <\/li>\n<li>Most causes are wiring\u2011harness faults, connector corrosion, or a failing control module that drives the bus. <\/li>\n<li>Diagnosis requires a scan tool that can read CAN\u2011bus voltages, a visual wiring inspection, and module communication tests. <\/li>\n<li>Replacement of the affected module is often the cleanest fix; Flagship One provides VIN\u2011matched, pre\u2011programmed units. <\/li>\n<\/ul>\n<\/div>\n<h3>U0013 Code: Common Symptoms, Causes, and Repair Steps <\/h3>\n<p>Drivers who encounter a U0013 fault usually notice that body\u2011related functions become erratic. The dashboard may display a persistent \u201cU0013\u201d warning, and you might see interior lights flicker, power windows stall mid\u2011stroke, or door\u2011lock actuators fail to respond. In some cases the instrument cluster itself will lose segments of illumination or the courtesy\u2011light timer will reset repeatedly. Because the Medium\u2011Speed CAN (+) line supplies power to multiple body\u2011control modules, any voltage drop on that line can produce a cascade of minor electrical glitches that appear unrelated at first glance.<\/p>\n<h2>Symptoms <\/h2>\n<ul>\n<li><strong>Intermittent interior\u2011lighting loss<\/strong> \u2013 dome, map, or footwell lights dim or go out unexpectedly. <\/li>\n<li><strong>Power\u2011window or power\u2011door\u2011lock failure<\/strong> \u2013 windows stop moving, lock\/unlock commands are ignored, or the switches feel \u201cdead.\u201d <\/li>\n<li><strong>Instrument\u2011cluster anomalies<\/strong> \u2013 certain gauge backlights or warning\u2011light LEDs flicker or stay off. <\/li>\n<li><strong>Persistent U0013 code on the scan tool<\/strong> \u2013 the fault remains after a hard reset or battery disconnect. <\/li>\n<li><strong>Occasional loss of accessory power<\/strong> \u2013 radio or climate\u2011control display may reboot when the bus voltage dips. <\/li>\n<\/ul>\n<p>These signs point to a low\u2011voltage condition on the Medium\u2011Speed CAN (+) line rather than a single sensor or actuator malfunction.<\/p>\n<h2>Why This Happens <\/h2>\n<h3>Faulty Wiring or Connector Corrosion <\/h3>\n<p>The Medium\u2011Speed CAN (+) line runs through the vehicle\u2019s body harness, often exposed to moisture, road\u2011salt spray, and vibration. Corroded pins, broken conductors, or loose crimp connections increase resistance, pulling the voltage below the module\u2011specified threshold (typically 3.5 V \u00b1 0.5 V). When resistance spikes, the bus voltage drops enough to trigger U0013.<\/p>\n<h3>Shorted or Open Bus Segments <\/h3>\n<p>A short to ground anywhere along the bus will clamp the voltage, while an open circuit (broken wire) removes the voltage source entirely. Both conditions produce the same low\u2011voltage detection in the receiving modules.<\/p>\n<h3>Module Power\u2011Regulation Failure <\/h3>\n<p>Control modules such as the Body\u2011Control Module (BCM) or instrument\u2011cluster controller regulate the CAN (+) voltage through internal regulators. A failing regulator can no longer maintain the required bus level, causing intermittent low\u2011voltage events that propagate to all downstream devices.<\/p>\n<h3>Software Glitch or Corrupted Calibration <\/h3>\n<p>Modern modules store calibration data that defines acceptable bus\u2011voltage ranges. Corruption of this data\u2014often after a failed flash or an incomplete reprogramming\u2014can cause the module to misinterpret a normal voltage as low, repeatedly setting U0013.<\/p>\n<h2>Diagnostic and Repair Procedures <\/h2>\n<ol>\n<li><strong>Retrieve the code with a CAN\u2011capable scan tool<\/strong> \u2013 confirm U0013 and note any related codes (e.g., U0012, U0014) that indicate opposite\u2011polarity faults.\n<\/li>\n<li><strong>Perform a live\u2011data voltage scan on the Medium\u2011Speed CAN (+) line<\/strong> \u2013 measure voltage at the main connector (usually near the BCM) while the ignition is ON. Values should stay within 3.0 V\u20134.0 V. Record any dips below 3.0 V.\n<\/li>\n<li><strong>Inspect the harness visually<\/strong> \u2013 follow the bus route from the power source to each module. Look for cracked insulation, water intrusion, or corroded terminals. Clean any corrosion with electrical contact cleaner and re\u2011torque connectors to manufacturer torque specs (typically 6\u20138 Nm).\n<\/li>\n<li><strong>Continuity test<\/strong> \u2013 using a multimeter, verify that the CAN (+) conductor has low resistance (&lt; 0.1 \u03a9) from the source to each module. An open or high\u2011resistance segment confirms a wiring fault.\n<\/li>\n<li><strong>Module communication test<\/strong> \u2013 using the scan tool, command a \u201cbus\u2011off\u201d test or \u201cCAN\u2011diagnostic\u201d routine for each affected module. A module that fails to acknowledge the test likely has an internal regulator problem.\n<\/li>\n<li><strong>Reprogramming attempt<\/strong> \u2013 if the module passes hardware tests but the fault persists, reflash the module with the latest factory calibration. This step eliminates corrupted software as the cause.\n<\/li>\n<li><strong>Replace the defective module<\/strong> \u2013 when a module\u2019s internal regulator is confirmed failed, install a replacement unit. Ensure the new module is VIN\u2011matched and pre\u2011programmed to the vehicle\u2019s configuration.\n<\/li>\n<li><strong>Clear codes and road\u2011test<\/strong> \u2013 after repair, clear all codes, then operate the vehicle through typical cycles (lock\/unlock, window operation, interior\u2011light use) to verify the U0013 code does not return.\n<\/li>\n<\/ol>\n<p><strong>Cost estimates<\/strong> <\/p>\n<ul>\n<li>Wiring repair and connector cleaning: $80\u2011$150 (labor). <\/li>\n<li>Module communication test with a professional scan tool: $100\u2011$130. <\/li>\n<li>Reprogramming (factory software): $150\u2011$250. <\/li>\n<li>Replacement control module (including VIN\u2011matched programming): $400\u2011$650 plus $120\u2011$180 labor. <\/li>\n<\/ul>\n<h2>When Replacement Makes Sense <\/h2>\n<div class=\"flagship-logo-section\">\n<a href=\"https:\/\/www.fs1inc.com\/\" rel=\"noopener noreferrer\" target=\"_blank\"><br \/>\n<img decoding=\"async\" alt=\"Flagship One\" class=\"flagship-logo\" src=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg\"\/><br \/>\n<\/a>\n<\/div>\n<p>If the diagnostic sequence identifies a failed internal regulator or repeated software corruption, repairing the module is often a temporary measure. Modern control modules are densely packed with micro\u2011electronics; once a regulator fails, the likelihood of subsequent component breakdown rises sharply. Replacing the unit eliminates the root cause and restores reliable bus voltage. <\/p>\n<p>Flagship One specializes in VIN\u2011matched control modules, providing a plug\u2011and\u2011drive solution backed by a comprehensive warranty. Because contemporary modules integrate security, immobilizer, and network\u2011management functions, correct programming is essential. Flagship One\u2019s pre\u2011programmed units are matched to your vehicle\u2019s production date and software version before shipping, ensuring seamless integration and eliminating dealer\u2011only re\u2011coding delays. <\/p>\n<h2>Preventive Maintenance <\/h2>\n<ul>\n<li><strong>Seal and protect harness connectors<\/strong> \u2013 apply dielectric grease to all CAN\u2011bus plugs during routine service to repel moisture. <\/li>\n<li><strong>Regular visual inspections<\/strong> \u2013 during seasonal maintenance, check the body harness for signs of abrasion, especially near suspension components and door hinges. <\/li>\n<li><strong>Maintain proper grounding<\/strong> \u2013 ensure chassis ground straps are intact and free of corrosion; a solid ground reduces overall bus resistance. <\/li>\n<li><strong>Update module software<\/strong> \u2013 follow manufacturer service bulletins that address CAN\u2011bus voltage calibration; applying these updates proactively prevents software\u2011related faults. <\/li>\n<li><strong>Avoid harsh electrical loads<\/strong> \u2013 when possible, limit simultaneous high\u2011current accessories (e.g., heated seats, rear\u2011window defrosters) during extreme cold, as excessive draw can momentarily depress bus voltage.<\/li>\n<\/ul>\n<div class=\"info-section\">\n<p><strong>Service Recommendation:<\/strong> Most issues related to this fault are diagnosed and corrected through inspection, wiring repair, and calibration rather than module replacement. For modules not typically replaced through aftermarket suppliers, diagnosis and repair should be performed by a certified automotive technician with access to factory service information and tooling.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Low Medium\u2011Speed CAN bus voltage on your vehicle can cause electrical glitches; read U0013, test the bus, and plan module reprogram or replacement.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-518995","post","type-post","status-publish","format-standard","hentry","category-auto-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide - Flagship One Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Low Medium\u2011Speed CAN bus voltage on your vehicle can cause electrical glitches; read U0013, test the bus, and plan module reprogram or replacement.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/\" \/>\n<meta property=\"og:site_name\" content=\"Flagship One Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/flagshipone\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/flagshipone\/\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-11T09:17:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg\" \/>\n<meta name=\"author\" content=\"FlagshipOne\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:site\" content=\"@theflagshipone\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"FlagshipOne\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide\",\"datePublished\":\"2025-12-11T09:17:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/\"},\"wordCount\":1073,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"articleSection\":[\"Auto News\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/\",\"name\":\"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"datePublished\":\"2025-12-11T09:17:04+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"width\":2560,\"height\":617},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0013-medium-speed-can-communication-bus-low\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"name\":\"Flagship One Blog\",\"description\":\"Flagship One Inc. OEM Engine Computers  Control Modules\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\",\"name\":\"Flagship One, Inc.\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/web-lg-fs1-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2019\\\/06\\\/web-lg-fs1-logo.png\",\"width\":1341,\"height\":1098,\"caption\":\"Flagship One, Inc.\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/flagshipone\",\"https:\\\/\\\/x.com\\\/theflagshipone\",\"https:\\\/\\\/www.instagram.com\\\/flagship_one\",\"https:\\\/\\\/www.youtube.com\\\/channel\\\/UC0oyKphffBM2qkJ-gKPmMXw\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\",\"name\":\"FlagshipOne\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g\",\"caption\":\"FlagshipOne\"},\"description\":\"The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules.\",\"sameAs\":[\"https:\\\/\\\/www.fs1inc.com\\\/\",\"https:\\\/\\\/www.facebook.com\\\/flagshipone\\\/\",\"https:\\\/\\\/www.instagram.com\\\/flagship_one\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/fs1inc\"],\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/author\\\/flagship1inc\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide - Flagship One Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/","og_locale":"en_US","og_type":"article","og_title":"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide - Flagship One Blog","og_description":"Low Medium\u2011Speed CAN bus voltage on your vehicle can cause electrical glitches; read U0013, test the bus, and plan module reprogram or replacement.","og_url":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/","og_site_name":"Flagship One Blog","article_publisher":"https:\/\/www.facebook.com\/flagshipone","article_author":"https:\/\/www.facebook.com\/flagshipone\/","article_published_time":"2025-12-11T09:17:04+00:00","og_image":[{"url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","type":"","width":"","height":""}],"author":"FlagshipOne","twitter_card":"summary_large_image","twitter_creator":"@theflagshipone","twitter_site":"@theflagshipone","twitter_misc":{"Written by":"FlagshipOne","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide","datePublished":"2025-12-11T09:17:04+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/"},"wordCount":1073,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","articleSection":["Auto News"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/","url":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/","name":"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/#primaryimage"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","datePublished":"2025-12-11T09:17:04+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/#primaryimage","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","width":2560,"height":617},{"@type":"BreadcrumbList","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0013-medium-speed-can-communication-bus-low\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"U0013 Code Symptoms, Causes, and Repair Procedures \u2013 Detailed Guide"}]},{"@type":"WebSite","@id":"https:\/\/www.fs1inc.com\/blog\/#website","url":"https:\/\/www.fs1inc.com\/blog\/","name":"Flagship One Blog","description":"Flagship One Inc. OEM Engine Computers  Control Modules","publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.fs1inc.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.fs1inc.com\/blog\/#organization","name":"Flagship One, Inc.","url":"https:\/\/www.fs1inc.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2019\/06\/web-lg-fs1-logo.png","contentUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2019\/06\/web-lg-fs1-logo.png","width":1341,"height":1098,"caption":"Flagship One, Inc."},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/flagshipone","https:\/\/x.com\/theflagshipone","https:\/\/www.instagram.com\/flagship_one","https:\/\/www.youtube.com\/channel\/UC0oyKphffBM2qkJ-gKPmMXw"]},{"@type":"Person","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700","name":"FlagshipOne","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/351b81e51993825aea73280c48061a7205fdd2189730ebbdee5d63894c5cebb4?s=96&d=mm&r=g","caption":"FlagshipOne"},"description":"The world's top supplier of programmed OEM (Original Equipment Manufacturer) Powertrain Control Modules (PCM), Engine Control Modules (ECM), Injection Control Modules (IDM), Body Control Modules (BCM), Transmission Control Modules (TCM), Engine Control Units and all other car control units. With over a decade in the business, we are the most reliable source when it comes to programming services for replacement engine control modules.","sameAs":["https:\/\/www.fs1inc.com\/","https:\/\/www.facebook.com\/flagshipone\/","https:\/\/www.instagram.com\/flagship_one\/","https:\/\/www.linkedin.com\/company\/fs1inc"],"url":"https:\/\/www.fs1inc.com\/blog\/author\/flagship1inc\/"}]}},"_links":{"self":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/518995","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/comments?post=518995"}],"version-history":[{"count":0,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/518995\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=518995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=518995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=518995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}