{"id":518167,"date":"2025-12-10T15:14:56","date_gmt":"2025-12-10T20:14:56","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/"},"modified":"2025-12-10T15:14:56","modified_gmt":"2025-12-10T20:14:56","slug":"dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/","title":{"rendered":"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">P2184<\/div>\n<h1>P2184 Code Symptoms, Causes, Diagnosis and Repair Costs Guide<\/h1>\n<p class=\"hero-subtitle\">\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>P2184 = Engine Coolant Temperature (ECT) Sensor 2 Circuit Low. <\/li>\n<li>Typical warnings: check\u2011engine light, coolant\u2011temp gauge reading \u201c\u2011\u2011\u201d or unusually high, reduced fuel efficiency, occasional rough idle or stall. <\/li>\n<li>Primary culprits: damaged sensor wiring, corroded connector, or loss of communication between the sensor and the vehicle\u2019s control module. <\/li>\n<li>Diagnosis: scan, verify live sensor data, perform resistance test, check module communication, and re\u2011program if needed. <\/li>\n<li>Replacement: often justified when the control module fails to interpret the sensor signal; Flagship One provides VIN\u2011matched, pre\u2011programmed modules with warranty coverage. <\/li>\n<\/ul>\n<\/div>\n<h3>Introduction <\/h3>\n<p>When the engine\u2011coolant temperature sensor on the second circuit sends a voltage that is too low, the vehicle\u2019s control module flags P2184. Drivers usually notice the check\u2011engine light illuminate, followed by coolant\u2011temperature readings that jump to the \u201c\u2011\u2011\u201d position or show a temperature far above normal operating range. Fuel consumption may climb 5\u201110 % because the engine management system enriches the mixture to protect against perceived overheating. In some cases the engine may hesitate or stall until the fault clears, especially during cold starts when the sensor\u2019s low signal prevents proper fuel\u2011trim calculation. Early identification of these signs prevents unnecessary wear and helps avoid costly coolant\u2011system damage.<\/p>\n<h2>Symptoms <\/h2>\n<ul>\n<li><strong>Check\u2011engine light<\/strong> solid or flashing. <\/li>\n<li><strong>Coolant\u2011temperature gauge<\/strong> stuck at high reading or displaying \u201c\u2011\u2011\u201d. <\/li>\n<li><strong>Reduced fuel efficiency<\/strong> (5\u201110 % higher fuel use). <\/li>\n<li><strong>Rough idle or occasional stall<\/strong> during cold\u2011start or when the engine is under light load. <\/li>\n<li><strong>Engine\u2011management warnings<\/strong> such as \u201cCold Engine\u201d or \u201cEngine Overheat\u201d messages on the instrument cluster.<\/li>\n<\/ul>\n<p>These indicators appear because the control module receives an implausibly low voltage from ECT Sensor 2 and compensates by altering fuel delivery and ignition timing.<\/p>\n<h2>Why Engine Coolant Temperature Sensor 2 Problems Occur <\/h2>\n<h3>Faulty Sensor Element <\/h3>\n<p>The sensor\u2019s thermistor can degrade over time, especially if exposed to coolant leaks or corrosion. A failing element may output a voltage below the module\u2019s minimum threshold, triggering P2184.<\/p>\n<h3>Wiring Harness Damage <\/h3>\n<p>Abrasion, chafing, or rodent damage to the sensor\u2019s harness can introduce high resistance or an open circuit. Even a small break can drop the voltage enough to register a low\u2011circuit condition.<\/p>\n<h3>Connector Corrosion or Poor Contact <\/h3>\n<p>Moisture ingress or oxidation at the sensor connector creates intermittent contact. The resulting voltage dip is interpreted as a circuit\u2011low fault.<\/p>\n<h3>Control\u2011Module Communication Failure <\/h3>\n<p>The vehicle\u2019s ECM\/PCM processes the sensor signal through its analog\u2011to\u2011digital converter. Internal board damage, failed voltage reference, or corrupted firmware can prevent the module from correctly reading a valid sensor voltage, producing P2184 even when the sensor and wiring are sound.<\/p>\n<h3>Software\/Calibration Issues <\/h3>\n<p>Out\u2011of\u2011date calibration tables or a glitch in the module\u2019s sensor\u2011mapping routine may misinterpret normal voltage ranges, causing a false low\u2011circuit code.<\/p>\n<p>*While a faulty sensor, wiring, or connector could cause the symptom, the issue may stem from the control module not communicating correctly with the system. A diagnostic scan and module communication test will determine if module replacement or reprogramming is needed.*<\/p>\n<h2>Diagnostic and Repair Procedures <\/h2>\n<ol>\n<li><strong>Retrieve the Code<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Connect a OBD\u2011II scanner capable of reading pending and stored codes. Confirm P2184 and note any related codes (e.g., P0115\u2011P0119 series).<\/p>\n<ol>\n<li><strong>Verify Live Data<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Observe the real\u2011time voltage or temperature reading from ECT Sensor 2. A value below ~0.5 V (or a temperature far outside the 0\u2011120 \u00b0C range) confirms a low\u2011circuit condition.<\/p>\n<ol>\n<li><strong>Perform Resistance Test<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Disconnect the sensor harness. Measure resistance between sensor terminals; typical ECT sensor resistance ranges from ~1 k\u03a9 (cold) to ~100 \u03a9 (hot). Values outside this range indicate a bad sensor.<\/p>\n<ol>\n<li><strong>Inspect Wiring and Connectors<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Visually check the harness for cuts, kinks, or corrosion. Use a multimeter to measure continuity from the sensor plug to the ECM\/PCM pin. Any open circuit requires repair of the harness or replacement of the connector.<\/p>\n<ol>\n<li><strong>Module Communication Check<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; Using a dealer\u2011level scan tool, command a \u201cmodule test\u201d or \u201csensor calibration\u201d routine. Failure to read sensor data despite a good sensor and wiring points to a module\u2011side fault.<\/p>\n<ol>\n<li><strong>Reprogram\/Update the Control Module<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; If the module\u2019s software is outdated, apply the latest calibration package. Many manufacturers release updates that resolve sensor\u2011mapping anomalies that cause false P2184 codes.<\/p>\n<ol>\n<li><strong>Replace the Control Module (if needed)<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; When the module fails the communication test and reprogramming does not clear the code, replacement is warranted. Ensure the replacement unit is VIN\u2011matched and pre\u2011programmed to the vehicle\u2019s specifications.<\/p>\n<ol>\n<li><strong>Clear Codes and Verify<\/strong>\n<\/li>\n<\/ol>\n<p> &#8211; After repair, clear all codes and perform a drive cycle. Re\u2011scan after 30 minutes of operation; the absence of P2184 confirms success.<\/p>\n<p><strong>Cost Overview<\/strong> <\/p>\n<ul>\n<li>Diagnostic scan and labor: $80\u2011$150. <\/li>\n<li>Sensor resistance test and wiring repair: $50\u2011$120 for parts and labor. <\/li>\n<li>Module reprogramming (factory tool required): $100\u2011$200. <\/li>\n<li>VIN\u2011matched module replacement (including programming): $600\u2011$900 for the unit plus $200\u2011$300 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>Control\u2011module failures that prevent accurate interpretation of sensor signals often reappear after repair attempts, especially when internal circuitry is compromised by moisture or age. Temporary fixes may restore operation, but the underlying fault typically resurfaces, leading to repeated check\u2011engine lights and reduced drivability.<\/p>\n<p><strong>Flagship One specializes in VIN\u2011matched control modules, providing a plug\u2011and\u2011drive solution backed by warranty. Modern control modules are complex and integrated with security and immobilizer systems. That&#8217;s why choosing a replacement isn&#8217;t only about the hardware\u2014it&#8217;s about correct programming and compatibility. Flagship One ensures each unit is matched to your vehicle\u2019s VIN, pre\u2011programmed with the appropriate software, and supported by a warranty that covers both hardware and programming.<\/strong> <\/p>\n<h2>Preventive Maintenance <\/h2>\n<ul>\n<li><strong>Maintain proper coolant level and type.<\/strong> Low coolant can introduce air bubbles that accelerate sensor corrosion. <\/li>\n<li><strong>Inspect coolant hoses and sensor wiring<\/strong> during routine coolant flushes; replace any cracked or brittle sections. <\/li>\n<li><strong>Keep connector terminals clean.<\/strong> Apply dielectric grease after cleaning to repel moisture. <\/li>\n<li><strong>Schedule periodic software updates<\/strong> through a qualified technician; manufacturers often release calibration fixes that address sensor\u2011reading anomalies. <\/li>\n<li><strong>Avoid engine overheating<\/strong> by monitoring temperature gauges and addressing cooling\u2011system warnings promptly; excessive heat can degrade sensor elements and module components.<\/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>Coolant temperature warning on your vehicle? P2184 means Sensor 2 circuit low, risking overheating. Scan module, test sensor, then reprogram or replace.<\/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-518167","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>P2184 Code Symptoms, Causes, Diagnosis and Repair Costs 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-p2184-engine-coolant-temperature-sensor-2-circuit-low\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs Guide - Flagship One Blog\" \/>\n<meta property=\"og:description\" content=\"Coolant temperature warning on your vehicle? P2184 means Sensor 2 circuit low, risking overheating. Scan module, test sensor, then reprogram or replace.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-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=\"2025-12-10T20:14:56+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-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/\"},\"author\":{\"name\":\"FlagshipOne\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#\\\/schema\\\/person\\\/a3cf463514bd03eb7656953ef8f75700\"},\"headline\":\"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs Guide\",\"datePublished\":\"2025-12-10T20:14:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/\"},\"wordCount\":1085,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-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-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/\",\"url\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/\",\"name\":\"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs Guide - Flagship One Blog\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/12\\\/fs1inc_logo2-scaled.jpg\",\"datePublished\":\"2025-12-10T20:14:56+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-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-p2184-engine-coolant-temperature-sensor-2-circuit-low\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.fs1inc.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs 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":"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs 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-p2184-engine-coolant-temperature-sensor-2-circuit-low\/","og_locale":"en_US","og_type":"article","og_title":"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs Guide - Flagship One Blog","og_description":"Coolant temperature warning on your vehicle? P2184 means Sensor 2 circuit low, risking overheating. Scan module, test sensor, then reprogram or replace.","og_url":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/","og_site_name":"Flagship One Blog","article_publisher":"https:\/\/www.facebook.com\/flagshipone","article_author":"https:\/\/www.facebook.com\/flagshipone\/","article_published_time":"2025-12-10T20:14:56+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-p2184-engine-coolant-temperature-sensor-2-circuit-low\/#article","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/"},"author":{"name":"FlagshipOne","@id":"https:\/\/www.fs1inc.com\/blog\/#\/schema\/person\/a3cf463514bd03eb7656953ef8f75700"},"headline":"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs Guide","datePublished":"2025-12-10T20:14:56+00:00","mainEntityOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/"},"wordCount":1085,"commentCount":0,"publisher":{"@id":"https:\/\/www.fs1inc.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-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-p2184-engine-coolant-temperature-sensor-2-circuit-low\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/","url":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/","name":"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs Guide - Flagship One Blog","isPartOf":{"@id":"https:\/\/www.fs1inc.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/#primaryimage"},"image":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/#primaryimage"},"thumbnailUrl":"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2025\/12\/fs1inc_logo2-scaled.jpg","datePublished":"2025-12-10T20:14:56+00:00","breadcrumb":{"@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-low\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.fs1inc.com\/blog\/dtc-p2184-engine-coolant-temperature-sensor-2-circuit-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-p2184-engine-coolant-temperature-sensor-2-circuit-low\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.fs1inc.com\/blog\/"},{"@type":"ListItem","position":2,"name":"P2184 Code Symptoms, Causes, Diagnosis and Repair Costs 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\/518167","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=518167"}],"version-history":[{"count":0,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/posts\/518167\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/media?parent=518167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/categories?post=518167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fs1inc.com\/blog\/wp-json\/wp\/v2\/tags?post=518167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}