{"id":519082,"date":"2025-12-11T05:44:12","date_gmt":"2025-12-11T10:44:12","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/"},"modified":"2025-12-11T05:44:12","modified_gmt":"2025-12-11T10:44:12","slug":"dtc-u0100-lost-communication-ecmpcm","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/","title":{"rendered":"U0100 Code Symptoms, Causes, Diagnosis &#038; Repair &#038; Reprogramming Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">U0100<\/div>\n<h1>U0100 Code Symptoms, Causes, Diagnosis &amp; Repair &amp; Reprogramming Guide<\/h1>\n<p class=\"hero-subtitle\">\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>U0100 means *Lost Communication With ECM\/PCM A* \u2013 the engine control module can\u2019t exchange data with the vehicle\u2019s network. <\/li>\n<li>Drivers usually see a Check Engine light, experience hard\u2011starts, no\u2011start, or intermittent stalling. <\/li>\n<li>Common origins are wiring\/connectors, corrupted module firmware, or a failed ECM\/PCM A hardware unit. <\/li>\n<li>A full network scan, continuity check, and module\u2011level diagnostics isolate the fault; repair may involve re\u2011programming or replacing the ECM\/PCM. <\/li>\n<li>Flagship One supplies VIN\u2011matched, pre\u2011programmed replacement modules with a lifetime warranty for a plug\u2011and\u2011drive fix. <\/li>\n<\/ul>\n<\/div>\n<h3>U0100 Code: Symptoms, Causes, and How to Diagnose and Repair Communication Failures <\/h3>\n<p>When the ECM\/PCM A cannot talk to the rest of the vehicle\u2019s control network, the Check Engine light illuminates and the powertrain may behave erratically. Drivers often notice the problem the moment they turn the key or press the start button. Early detection prevents a complete loss of driveability and avoids costly downstream damage.<\/p>\n<h4>Symptoms <\/h4>\n<ul>\n<li><strong>Check Engine lamp solid or flashing<\/strong> \u2013 the primary visual cue that the powertrain control network has detected a loss of communication. <\/li>\n<li><strong>Hard or delayed start<\/strong> \u2013 the engine cranks longer than normal before firing, or it may require a second ignition attempt. <\/li>\n<li><strong>Intermittent stalling<\/strong> \u2013 the engine may die briefly while cruising, then restart when the fault clears. <\/li>\n<li><strong>No\u2011start condition<\/strong> \u2013 in severe cases the ECM\/PCM A does not receive enough data to command fuel injection and ignition, so the engine will not start at all. <\/li>\n<li><strong>Erratic idle<\/strong> \u2013 idle speed may fluctuate wildly because the module cannot regulate fuel and spark timing consistently. <\/li>\n<\/ul>\n<p>These signs appear suddenly and may come and go as the communication link degrades.<\/p>\n<h4>Why This Happens <\/h4>\n<p>##### Faulty Wiring or Connectors <\/p>\n<p>Corroded pins, broken harness strands, or loose terminals interrupt the CAN\u2011bus or K\u2011line signals that the ECM\/PCM A uses to share sensor data and command messages. Even a single compromised pin can break the network, causing the U0100 code.<\/p>\n<p>##### Corrupted or Out\u2011of\u2011Date Firmware <\/p>\n<p>Software glitches, incomplete flash updates, or memory degradation can prevent the module from recognizing or responding to network traffic. When the ECM\/PCM A\u2019s internal checksum fails, it stops transmitting, triggering the loss\u2011of\u2011communication fault.<\/p>\n<p>##### Internal Hardware Failure <\/p>\n<p>Moisture intrusion, cracked solder joints, or failed power regulation inside the ECM\/PCM A disables its communication transceiver. A hardware fault often produces intermittent symptoms before the module becomes completely silent.<\/p>\n<h4>Diagnostic and Repair Procedures <\/h4>\n<ol>\n<li><strong>Retrieve the Code and Freeze\u2011Frame Data<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Connect a professional scan tool, read the U0100 code, and note any accompanying codes (e.g., U0101, U0121) that may indicate a broader network issue. <\/p>\n<ol>\n<li><strong>Perform a Network Scan<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Use the scan tool\u2019s CAN\u2011bus monitor to verify that other modules (TCM, BCM, TIPM) are transmitting. Absence of traffic from ECM\/PCM A confirms the loss of communication. <\/p>\n<ol>\n<li><strong>Inspect Wiring and Connectors<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Visually examine the harness between the ECM\/PCM A and the main bus for corrosion, chafing, or loose clamps. <\/p>\n<p> &#8211; Test continuity and resistance on each pin with a multimeter; values outside the manufacturer\u2019s specification (typically &lt; 0.2 \u03a9 for ground pins, 30\u201370 \u03a9 for data lines) indicate a fault. <\/p>\n<ol>\n<li><strong>Check Power and Ground Supplies<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Verify that the ECM\/PCM A receives stable voltage (usually 12.0\u201314.5 V) and a solid chassis ground. Voltage sag below 10 V during cranking suggests a supply problem that must be resolved before module work. <\/p>\n<ol>\n<li><strong>Attempt Re\u2011programming<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; If wiring and power are sound, reflash the ECM\/PCM A with the latest calibrated software using a dealer\u2011grade or OEM\u2011approved programming tool. This step resolves corrupted firmware in many cases and costs roughly $150\u2011$250 for labor and software access. <\/p>\n<ol>\n<li><strong>Evaluate Repair vs. Replacement<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; If re\u2011programming does not restore communication, or if visual inspection reveals physical damage to the module, replacement is the logical next step. <\/p>\n<p>Typical labor for the full diagnostic sequence ranges from $120 to $200, depending on shop rates and vehicle complexity.<\/p>\n<h4>When Replacement Makes More Sense Than Repair <\/h4>\n<p>A repaired ECM\/PCM A may function temporarily, but internal damage such as cracked solder joints or moisture\u2011induced corrosion often re\u2011emerges after a short drive. When repair costs approach or exceed $500, or when the module has a history of intermittent failures, a new unit offers greater reliability.<\/p>\n<p>Modern control modules are tightly integrated with security, immobilizer, and emission\u2011control systems. That integration means a replacement must be programmed with the vehicle\u2019s exact VIN, software version, and calibration data. An improperly programmed module can trigger additional codes, cause driveability issues, or even disable the anti\u2011theft system.<\/p>\n<p><strong>Flagship One specializes in VIN\u2011matched control modules, providing a plug\u2011and\u2011drive solution backed by a lifetime warranty.<\/strong> Replacement units vary depending on production date and software version, so the correct module is matched by VIN before programming. The pre\u2011programmed unit arrives ready for installation, eliminating dealer\u2011only re\u2011coding steps and reducing vehicle downtime.<\/p>\n<h4>Preventive Maintenance <\/h4>\n<ul>\n<li><strong>Routine Harness Inspection<\/strong> \u2013 During regular service, have a technician check the ECM\/PCM A harness for signs of wear, especially in areas where the harness rubs against metal or heat shields. <\/li>\n<li><strong>Corrosion Guard<\/strong> \u2013 Apply dielectric grease to connector pins in high\u2011humidity climates to repel moisture. <\/li>\n<li><strong>Software Updates<\/strong> \u2013 Keep the ECM\/PCM A firmware current; manufacturers release updates that address known communication bugs. <\/li>\n<li><strong>Battery Health<\/strong> \u2013 Maintain a healthy battery and charging system; voltage spikes or drops can stress the module\u2019s power regulation circuits. <\/li>\n<li><strong>Secure Ground Paths<\/strong> \u2013 Ensure chassis grounds remain tight and free of paint or corrosion, as a poor ground can mimic communication loss.<\/li>\n<\/ul>\n<h4>Frequently Asked Questions <\/h4>\n<p><strong>What does a flashing Check Engine light mean with a U0100 code?<\/strong> <\/p>\n<p>A flashing lamp indicates a severe misfire condition, but when paired with U0100 it usually means the ECM\/PCM A has lost communication while the engine is under load. The vehicle should be stopped promptly and scanned to prevent engine damage.<\/p>\n<p><strong>How much does an ECM\/PCM replacement cost for a U0100 fault?<\/strong> <\/p>\n<p>Replacement units typically range from $800 to $1,200 for the hardware, plus $200\u2011$300 labor for installation and VIN\u2011specific programming. Prices vary by vehicle make, model year, and required software calibration.<\/p>\n<p><strong>Can a bad battery cause a U0100 code?<\/strong> <\/p>\n<p>A severely depleted or failing battery can produce voltage drops that interrupt the ECM\/PCM A\u2019s communication bus. While the battery itself is not the primary culprit, a weak power source should be verified before concluding the module is at fault.<\/p>\n<p><strong>Is it safe to drive with a solid Check Engine light and a U0100 code?<\/strong> <\/p>\n<p>Driving is possible if the engine starts and runs, but the loss of communication can lead to unpredictable idle, stalling, or a complete no\u2011start. It is advisable to diagnose and resolve the issue within a few days to avoid being stranded.<\/p>\n<p><strong>Do I need a dealer to re\u2011program a replacement ECM\/PCM?<\/strong> <\/p>\n<p>No. A VIN\u2011matched, pre\u2011programmed module from Flagship One arrives ready for plug\u2011and\u2011drive installation. Professional re\u2011programming tools are still required for verification, but the extensive dealer\u2011only coding step is eliminated.<\/p>\n<p>Systematic diagnosis\u2014scanning for U0100, confirming network traffic, inspecting wiring, and testing power integrity\u2014isolates the communication fault. If re\u2011programming does not restore function, replace the ECM\/PCM A with a VIN\u2011matched unit. Flagship One provides pre\u2011programmed, lifetime\u2011warranty modules that arrive ready for plug\u2011and\u2011drive installation, minimizing downtime and ensuring reliable engine control.<\/p>\n<div class=\"cta-section\">\n<h2>VIN-Programmed Control Module Replacement<\/h2>\n<p>Flagship One provides VIN-programmed, OEM engine and powertrain control modules backed by lifetime warranty. Units arrive pre-programmed to your vehicle&#8217;s specifications for plug-and-drive installation.<\/p>\n<p><a class=\"cta-button\" href=\"https:\/\/www.fs1inc.com\/\">View Products<\/a>\n<\/div>\n<div class=\"content-section\">\n<h2>Frequently Asked Questions<\/h2>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Your vehicle won\u2019t start? Lost communication with ECM\/PCM A disables engine control\u2014run a network scan, inspect wiring, and arrange repair\/reprogramming.<\/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-519082","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>U0100 Code Symptoms, Causes, Diagnosis &amp; Repair &amp; Reprogramming 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-u0100-lost-communication-ecmpcm\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"U0100 Code Symptoms, Causes, Diagnosis &amp; Repair &amp; Reprogramming Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Your vehicle won\u2019t start? Lost communication with ECM\/PCM A disables engine control\u2014run a network scan, inspect wiring, and arrange repair\/reprogramming.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/\" \/>\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=\"2025-12-11T10:44:12+00:00\" \/>\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=\"6 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-u0100-lost-communication-ecmpcm\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0100-lost-communication-ecmpcm\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"U0100 Code Symptoms, Causes, Diagnosis &#038; Repair &#038; Reprogramming Guide\",\"datePublished\":\"2025-12-11T10:44:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0100-lost-communication-ecmpcm\\\/\"},\"wordCount\":1292,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"articleSection\":[\"Auto News\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0100-lost-communication-ecmpcm\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0100-lost-communication-ecmpcm\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0100-lost-communication-ecmpcm\\\/\",\"name\":\"U0100 Code Symptoms, Causes, Diagnosis & Repair & Reprogramming Guide - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"datePublished\":\"2025-12-11T10:44:12+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0100-lost-communication-ecmpcm\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0100-lost-communication-ecmpcm\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-u0100-lost-communication-ecmpcm\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"U0100 Code Symptoms, Causes, Diagnosis &#038; Repair &#038; Reprogramming 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":"U0100 Code Symptoms, Causes, Diagnosis & Repair & Reprogramming 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-u0100-lost-communication-ecmpcm\/","og_locale":"en_US","og_type":"article","og_title":"U0100 Code Symptoms, Causes, Diagnosis & Repair & Reprogramming Guide - Flagship One Blog","og_description":"Your vehicle won\u2019t start? Lost communication with ECM\/PCM A disables engine control\u2014run a network scan, inspect wiring, and arrange repair\/reprogramming.","og_url":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/","og_site_name":"Flagship One Blog","article_publisher":"https:\/\/www.facebook.com\/flagshipone","article_author":"https:\/\/www.facebook.com\/flagshipone\/","article_published_time":"2025-12-11T10:44:12+00:00","author":"FlagshipOne","twitter_card":"summary_large_image","twitter_creator":"@theflagshipone","twitter_site":"@theflagshipone","twitter_misc":{"Written by":"FlagshipOne","Est. reading time":"6 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"U0100 Code Symptoms, Causes, Diagnosis &#038; Repair &#038; Reprogramming Guide","datePublished":"2025-12-11T10:44:12+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/"},"wordCount":1292,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"articleSection":["Auto News"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/","url":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/","name":"U0100 Code Symptoms, Causes, Diagnosis & Repair & Reprogramming Guide - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"datePublished":"2025-12-11T10:44:12+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-u0100-lost-communication-ecmpcm\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"U0100 Code Symptoms, Causes, Diagnosis &#038; Repair &#038; Reprogramming 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\/519082","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=519082"}],"version-history":[{"count":0,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/519082\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=519082"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=519082"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=519082"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}