{"id":519605,"date":"2025-12-11T13:39:12","date_gmt":"2025-12-11T18:39:12","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/"},"modified":"2025-12-11T13:39:12","modified_gmt":"2025-12-11T18:39:12","slug":"dtc-u0673-lost-communication-ion-sense-module","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/","title":{"rendered":"U0673 Code Symptoms, Causes, Diagnostic Guide &#038; Repair Steps"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">U0673<\/div>\n<h1>U0673 Code Symptoms, Causes, Diagnostic Guide &amp; Repair Steps<\/h1>\n<p class=\"hero-subtitle\">\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>U0673 means the vehicle\u2019s control network cannot talk to the Ion Sense Module. <\/li>\n<li>Drivers usually see a malfunction indicator lamp (MIL) plus battery\u2011charge or electrical\u2011system warnings. <\/li>\n<li>The most common causes are wiring\/connectors problems, module power loss, or corrupted module software. <\/li>\n<li>Diagnosis requires a scan tool, communication\u2011test on the CAN bus, and verification of voltage\/power at the module. <\/li>\n<li>Replacement is often the most reliable fix; Flagship One provides VIN\u2011matched, pre\u2011programmed modules with a warranty. <\/li>\n<\/ul>\n<\/div>\n<h3>U0673 Code \u2013 Symptoms, Causes, and How to Fix the Problem <\/h3>\n<p>Your dashboard lights up with the check\u2011engine lamp, and you may notice the battery\u2011charge warning blinking or the vehicle\u2019s \u201celectrical system\u201d alert appearing intermittently. Those warnings are the first clues that the Ion Sense Module has stopped communicating with the vehicle\u2019s control network. Because the module supplies ion\u2011sense data used for emissions monitoring and battery\u2011state calculations, loss of communication can cause the engine control unit to disable related functions, resulting in the warning lights you see. Early identification prevents the fault from triggering additional diagnostics or causing the vehicle to fail emissions testing. <\/p>\n<h2>Symptoms <\/h2>\n<ul>\n<li><strong>Malfunction Indicator Lamp (MIL) illuminated<\/strong> \u2013 the check\u2011engine light comes on as soon as the control unit registers the loss of communication. <\/li>\n<li><strong>Battery\u2011charge or \u201cElectrical System\u201d warning<\/strong> \u2013 a flashing or steady battery icon may appear, indicating the system cannot verify proper battery status. <\/li>\n<li><strong>Intermittent \u201cService Engine Soon\u201d or \u201cEmissions\u201d messages<\/strong> \u2013 the vehicle may display a generic service\u2011engine notice without obvious drivability issues. <\/li>\n<li><strong>Reduced fuel\u2011efficiency readings<\/strong> \u2013 the instrument cluster may show a temporary drop in MPG because the engine control unit disables ion\u2011sense compensation. <\/li>\n<\/ul>\n<p>These signs are purely electrical\/diagnostic; they do not affect engine power, acceleration, or braking. <\/p>\n<h2>Why This Happens <\/h2>\n<h3>Faulty Wiring or Connectors <\/h3>\n<p>The Ion Sense Module communicates over the CAN bus. Corroded pins, broken harnesses, or loose connectors can interrupt the data stream, causing the control unit to log U0673. <\/p>\n<h3>Power\u2011Supply Failure to the Module <\/h3>\n<p>The module requires a stable 12 V supply with proper ground. A blown fuse, a bad voltage regulator, or a short to ground can starve the module, leading to loss of communication. <\/p>\n<h3>Software Corruption or Incompatible Calibration <\/h3>\n<p>If the module\u2019s firmware becomes corrupted during a previous reflash or if a software update was interrupted, the module may stop responding to network requests. <\/p>\n<h3>Internal Module Failure <\/h3>\n<p>Water intrusion, solder joint fatigue, or component burnout inside the Ion Sense Module can prevent it from transmitting data, even though the external wiring appears intact. <\/p>\n<h2>Diagnostic and Repair Procedures <\/h2>\n<ol>\n<li><strong>Read the DTC with a professional scan tool<\/strong> \u2013 confirm U0673 and note any additional codes that may point to wiring (e.g., B\u2011codes) or power\u2011supply issues.\n<\/li>\n<li><strong>Inspect the Ion Sense Module harness<\/strong> \u2013 verify connector pins for corrosion, ensure the clip is fully seated, and check the wiring for cracks or chafing.\n<\/li>\n<li><strong>Perform a CAN\u2011bus communication test<\/strong> \u2013 most scan tools can ping the module; a \u201cno response\u201d confirms a communication loss.\n<\/li>\n<li><strong>Check module voltage and ground<\/strong> \u2013 measure voltage at the module\u2019s power lead while the ignition is on; it should read 11.8\u201112.5 V. Ground resistance should be less than 0.1 \u03a9.\n<\/li>\n<li><strong>Clear the code and monitor<\/strong> \u2013 after correcting any wiring or power issues, clear the DTC and drive the vehicle for at least 30 minutes to see if it returns.\n<\/li>\n<li><strong>Reflash or update the module software<\/strong> \u2013 if the module powers correctly but still fails to communicate, attempt a factory\u2011approved software update using the vehicle manufacturer\u2019s reprogramming tool.\n<\/li>\n<li><strong>Evaluate module health<\/strong> \u2013 if the module still does not respond after wiring, power, and software checks, internal failure is likely.\n<\/li>\n<\/ol>\n<p><strong>Typical costs<\/strong> <\/p>\n<ul>\n<li>Professional scan tool rental or shop labor: $80\u2011$150. <\/li>\n<li>Wiring repair or connector replacement: $50\u2011$120 for parts and labor. <\/li>\n<li>Module reflash (factory tool): $100\u2011$200, depending on labor rates. <\/li>\n<\/ul>\n<p>If internal failure is confirmed, replacement is the most reliable solution. <\/p>\n<h2>When Replacement Makes More Sense Than Repair <\/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>When the Ion Sense Module shows no response after thorough wiring, power, and software verification, the internal circuitry is likely compromised. Temporary repairs such as solder\u2011joint rework may restore function briefly, but moisture ingress or component burnout often recurs, leading to repeated DTCs and additional diagnostic time. <\/p>\n<p>Modern control modules are tightly integrated with vehicle security, immobilizer, and emissions systems. Choosing a replacement isn\u2019t just about the hardware; it\u2019s about ensuring the new unit is correctly programmed to match the vehicle\u2019s VIN and software version. <\/p>\n<p><strong>Flagship One specializes in VIN\u2011matched control modules, providing a plug\u2011and\u2011drive solution backed by warranty.<\/strong> Their inventory includes pre\u2011programmed Ion Sense Modules that are calibrated to the exact specifications of each vehicle, eliminating the need for on\u2011site coding. The warranty covers both functional performance and software integrity, giving you confidence that the replacement will communicate reliably with the vehicle\u2019s network. <\/p>\n<h2>Preventive Maintenance <\/h2>\n<ul>\n<li><strong>Regularly inspect wiring harnesses<\/strong> in the engine bay for signs of wear, especially near heat sources and moving parts. <\/li>\n<li><strong>Clean connector pins<\/strong> with a dielectric cleaner during scheduled service intervals to prevent corrosion. <\/li>\n<li><strong>Verify fuse integrity<\/strong> for the Ion Sense Module\u2019s power circuit during routine maintenance; replace any blown fuses promptly. <\/li>\n<li><strong>Keep the battery and charging system healthy<\/strong> \u2013 a stable voltage supply reduces stress on all control modules. <\/li>\n<li><strong>Schedule software updates<\/strong> at the manufacturer\u2019s recommended intervals; many dealers release calibration patches that address communication glitches.<\/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>Your vehicle lost communication with the Ion Sense Module\u2014essential for emissions. Scan the network, check wiring, and plan module repair 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-519605","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>U0673 Code Symptoms, Causes, Diagnostic Guide &amp; Repair Steps - 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-u0673-lost-communication-ion-sense-module\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"U0673 Code Symptoms, Causes, Diagnostic Guide &amp; Repair Steps - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Your vehicle lost communication with the Ion Sense Module\u2014essential for emissions. Scan the network, check wiring, and plan module repair or replacement.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/\" \/>\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=\"2025-12-11T18:39:12+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-u0673-lost-communication-ion-sense-module\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"U0673 Code Symptoms, Causes, Diagnostic Guide &#038; Repair Steps\",\"datePublished\":\"2025-12-11T18:39:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/\"},\"wordCount\":963,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/#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-u0673-lost-communication-ion-sense-module\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/\",\"name\":\"U0673 Code Symptoms, Causes, Diagnostic Guide & Repair Steps - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"datePublished\":\"2025-12-11T18:39:12+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0673-lost-communication-ion-sense-module\\\/#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-u0673-lost-communication-ion-sense-module\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"U0673 Code Symptoms, Causes, Diagnostic Guide &#038; Repair Steps\"}]},{\"@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":"U0673 Code Symptoms, Causes, Diagnostic Guide & Repair Steps - 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-u0673-lost-communication-ion-sense-module\/","og_locale":"en_US","og_type":"article","og_title":"U0673 Code Symptoms, Causes, Diagnostic Guide & Repair Steps - Flagship One Blog","og_description":"Your vehicle lost communication with the Ion Sense Module\u2014essential for emissions. Scan the network, check wiring, and plan module repair or replacement.","og_url":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/","og_site_name":"Flagship One Blog","article_publisher":"https:\/\/www.facebook.com\/flagshipone","article_author":"https:\/\/www.facebook.com\/flagshipone\/","article_published_time":"2025-12-11T18:39:12+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-u0673-lost-communication-ion-sense-module\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"U0673 Code Symptoms, Causes, Diagnostic Guide &#038; Repair Steps","datePublished":"2025-12-11T18:39:12+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/"},"wordCount":963,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/#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-u0673-lost-communication-ion-sense-module\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/","url":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/","name":"U0673 Code Symptoms, Causes, Diagnostic Guide & Repair Steps - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/#primaryimage"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","datePublished":"2025-12-11T18:39:12+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0673-lost-communication-ion-sense-module\/#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-u0673-lost-communication-ion-sense-module\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"U0673 Code Symptoms, Causes, Diagnostic Guide &#038; Repair Steps"}]},{"@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\/519605","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=519605"}],"version-history":[{"count":0,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/519605\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=519605"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=519605"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=519605"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}