{"id":78035,"date":"2025-08-24T13:42:58","date_gmt":"2025-08-24T18:42:58","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=78035"},"modified":"2025-08-24T13:42:58","modified_gmt":"2025-08-24T18:42:58","slug":"p0681-obd2-cylinder-11-glow-plug-circuit-open","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open","title":{"rendered":"P0681 OBD2: Cylinder 11 Glow Plug Circuit\/Open"},"content":{"rendered":"<p>The P0681 OBD-II code refers to an issue with the glow plug circuit for cylinder 11 in diesel engines. This code is activated when the engine control module (PCM) detects that the glow plug is not operating as it should, which can lead to difficulties in starting the engine, especially in cold weather.<\/p>\n<h2>What Does the P0681 Code Mean?<\/h2>\n<p>The P0681 code indicates that the PCM has identified a malfunction with the glow plug circuit for cylinder 11. The glow plugs are essential components in diesel engines, designed to preheat the combustion chamber to ensure smooth engine starting. When the glow plug for this specific cylinder is faulty or not functioning, it affects the engine&#8217;s ability to start in cold conditions.<\/p>\n<h2>What Causes the P0681 Code?<\/h2>\n<p>Several factors can trigger the P0681 code, including:<\/p>\n<ul>\n<li>Glow plug control module failure<\/li>\n<li>Glow plug failure<\/li>\n<li>Glow plug wiring harness failure<\/li>\n<\/ul>\n<p>Any of these issues can prevent the glow plug from receiving the necessary voltage or functioning properly, leading to the activation of the P0681 code.<\/p>\n<h2>What Are the Symptoms of the P0681 Code?<\/h2>\n<p>When the P0681 code is present, you may experience the following symptoms:<\/p>\n<ul>\n<li>Engine may not start<\/li>\n<li>Hard or no start in cold weather<\/li>\n<\/ul>\n<p>These symptoms can significantly hinder the vehicle&#8217;s usability, especially in colder climates.<\/p>\n<h2>How Serious Is the P0681 Code?<\/h2>\n<p>The P0681 code is considered urgent. Immediate action is necessary as it can lead to severe engine damage if not addressed promptly. Ignoring this code may also result in unsafe driving conditions, especially when starting the vehicle in cold weather.<\/p>\n<h2>How to Diagnose the P0681 Code<\/h2>\n<p>To diagnose the P0681 code, a mechanic will typically follow these steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P0681 code.<\/li>\n<li>Inspect the glow plug control module and wiring harness for any visible damage or corrosion.<\/li>\n<li>Test the glow plug for continuity and proper operation.<\/li>\n<li>Check the PCM to ensure it is functioning correctly.<\/li>\n<\/ol>\n<p>Proper diagnosis will help identify the root cause of the issue, allowing for an effective repair.<\/p>\n<h2>Common Repairs for the P0681 Code<\/h2>\n<p>Repairs for the P0681 code may include:<\/p>\n<ul>\n<li>Replacing the faulty glow plug<\/li>\n<li>Repairing or replacing the glow plug control module<\/li>\n<li>Fixing any damaged wiring in the glow plug circuit<\/li>\n<\/ul>\n<p>Each repair will depend on the specific issue identified during the diagnostic process.<\/p>\n<h2>How Much Does It Cost to Fix the P0681 Code?<\/h2>\n<p>The cost to fix the P0681 code can vary widely based on the specific repairs needed. On average, you can expect to pay between $100 and $500, depending on labor rates and the cost of parts. Replacing a glow plug is typically less expensive than replacing the control module or repairing wiring.<\/p>\n<h2>Can I Fix the P0681 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may tackle the repair of the P0681 code, it is crucial to have a good understanding of diesel engine systems and the electrical components involved. If you&#8217;re not confident in your skills, it&#8217;s best to seek help from a professional mechanic to ensure the issue is diagnosed and repaired correctly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0681 OBD-II code refers to an issue with the glow plug circuit for cylinder 11 in diesel engines. This code is activated when the engine control module (PCM) detects that the glow plug is not operating as it should, which can lead to difficulties in starting the engine, especially in cold weather. What Does &hellip;<\/p>\n","protected":false},"author":26,"featured_media":93713,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_uag_custom_page_level_css":"","footnotes":""},"categories":[11987],"tags":[],"class_list":["post-78035","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-p-obd2-codes-powertrain"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.6 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P0681 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0681 code, what causes cylinder 11 glow plug circuit\/open issues, and how to diagnose and fix common problems to maintain optimal engine performance.\" \/>\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.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0681 OBD2: Cylinder 11 Glow Plug Circuit\/Open\" \/>\n<meta property=\"og:description\" content=\"The P0681 OBD-II code refers to an issue with the glow plug circuit for cylinder 11 in diesel engines. This code is activated when the engine control\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open\" \/>\n<meta property=\"og:site_name\" content=\"eManualOnline Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/EmanualOnline\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/jee514\" \/>\n<meta property=\"article:published_time\" content=\"2025-08-24T18:42:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"675\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"JC Landry\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:site\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"JC Landry\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0681 OBD2: Cylinder 11 Glow Plug Circuit\\\/Open\",\"datePublished\":\"2025-08-24T18:42:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open\"},\"wordCount\":518,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png\",\"articleSection\":[\"P Codes - OBD2 Powertrain Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open#respond\"]}],\"copyrightYear\":\"2025\",\"copyrightHolder\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"}},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open\",\"name\":\"OBD2 Code P0681 \u2013 Causes, Symptoms, and Repairs\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png\",\"datePublished\":\"2025-08-24T18:42:58+00:00\",\"description\":\"Learn all about the P0681 code, what causes cylinder 11 glow plug circuit\\\/open issues, and how to diagnose and fix common problems to maintain optimal engine performance.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open#primaryimage\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png\",\"contentUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/08\\\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png\",\"width\":1200,\"height\":675,\"caption\":\"P0681 OBD2: Cylinder 11 Glow Plug Circuit\\\/Open\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0681-obd2-cylinder-11-glow-plug-circuit-open#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"P0681 OBD2: Cylinder 11 Glow Plug Circuit\\\/Open\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\",\"name\":\"eManualOnline Blog\",\"description\":\"Free Tips on Car Service, Repair and General Stuff\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#organization\",\"name\":\"eManualOnline\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/cdm.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/04\\\/LOGO-NEW.png\",\"contentUrl\":\"https:\\\/\\\/cdm.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/04\\\/LOGO-NEW.png\",\"width\":512,\"height\":82,\"caption\":\"eManualOnline\"},\"image\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/EmanualOnline\\\/\",\"https:\\\/\\\/x.com\\\/eManualOnline\",\"https:\\\/\\\/www.instagram.com\\\/emanual.online\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/emanualonline\",\"https:\\\/\\\/www.pinterest.com\\\/emanualonline\\\/\"]},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\",\"name\":\"JC Landry\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"contentUrl\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/07\\\/Jee-150x150.jpg\",\"caption\":\"JC Landry\"},\"description\":\"JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of\u00a0TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.\",\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/jee514\",\"https:\\\/\\\/www.instagram.com\\\/rat_in_chief\\\/\",\"https:\\\/\\\/www.linkedin.com\\\/in\\\/jean-claude-landry-857781186\\\/\"],\"url\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/author\\\/jclandry\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"OBD2 Code P0681 \u2013 Causes, Symptoms, and Repairs","description":"Learn all about the P0681 code, what causes cylinder 11 glow plug circuit\/open issues, and how to diagnose and fix common problems to maintain optimal engine performance.","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.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open","og_locale":"en_US","og_type":"article","og_title":"P0681 OBD2: Cylinder 11 Glow Plug Circuit\/Open","og_description":"The P0681 OBD-II code refers to an issue with the glow plug circuit for cylinder 11 in diesel engines. This code is activated when the engine control","og_url":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open","og_site_name":"eManualOnline Blog","article_publisher":"https:\/\/www.facebook.com\/EmanualOnline\/","article_author":"https:\/\/www.facebook.com\/jee514","article_published_time":"2025-08-24T18:42:58+00:00","og_image":[{"width":1200,"height":675,"url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png","type":"image\/png"}],"author":"JC Landry","twitter_card":"summary_large_image","twitter_creator":"@eManualOnline","twitter_site":"@eManualOnline","twitter_misc":{"Written by":"JC Landry","Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open#article","isPartOf":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open"},"author":{"name":"JC Landry","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403"},"headline":"P0681 OBD2: Cylinder 11 Glow Plug Circuit\/Open","datePublished":"2025-08-24T18:42:58+00:00","mainEntityOfPage":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open"},"wordCount":518,"commentCount":0,"publisher":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open#primaryimage"},"thumbnailUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png","articleSection":["P Codes - OBD2 Powertrain Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open","url":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open","name":"OBD2 Code P0681 \u2013 Causes, Symptoms, and Repairs","isPartOf":{"@id":"https:\/\/www.emanualonline.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open#primaryimage"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open#primaryimage"},"thumbnailUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png","datePublished":"2025-08-24T18:42:58+00:00","description":"Learn all about the P0681 code, what causes cylinder 11 glow plug circuit\/open issues, and how to diagnose and fix common problems to maintain optimal engine performance.","breadcrumb":{"@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open#primaryimage","url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png","contentUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png","width":1200,"height":675,"caption":"P0681 OBD2: Cylinder 11 Glow Plug Circuit\/Open"},{"@type":"BreadcrumbList","@id":"https:\/\/www.emanualonline.com\/blog\/p0681-obd2-cylinder-11-glow-plug-circuit-open#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.emanualonline.com\/blog\/"},{"@type":"ListItem","position":2,"name":"P0681 OBD2: Cylinder 11 Glow Plug Circuit\/Open"}]},{"@type":"WebSite","@id":"https:\/\/www.emanualonline.com\/blog\/#website","url":"https:\/\/www.emanualonline.com\/blog\/","name":"eManualOnline Blog","description":"Free Tips on Car Service, Repair and General Stuff","publisher":{"@id":"https:\/\/www.emanualonline.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.emanualonline.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.emanualonline.com\/blog\/#organization","name":"eManualOnline","url":"https:\/\/www.emanualonline.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/cdm.emanualonline.com\/blog\/wp-content\/uploads\/2021\/04\/LOGO-NEW.png","contentUrl":"https:\/\/cdm.emanualonline.com\/blog\/wp-content\/uploads\/2021\/04\/LOGO-NEW.png","width":512,"height":82,"caption":"eManualOnline"},"image":{"@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/EmanualOnline\/","https:\/\/x.com\/eManualOnline","https:\/\/www.instagram.com\/emanual.online\/","https:\/\/www.linkedin.com\/company\/emanualonline","https:\/\/www.pinterest.com\/emanualonline\/"]},{"@type":"Person","@id":"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403","name":"JC Landry","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","url":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","contentUrl":"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2020\/07\/Jee-150x150.jpg","caption":"JC Landry"},"description":"JC is the Senior Editor at eManualOnline.com, GarageSpot.com, and Drive-My.com, as well as the Webmaster of\u00a0TheMechanicDoctor.com, only to name a few. He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. He also loves cats, Johnny Cash and Subarus.","sameAs":["https:\/\/www.facebook.com\/jee514","https:\/\/www.instagram.com\/rat_in_chief\/","https:\/\/www.linkedin.com\/in\/jean-claude-landry-857781186\/"],"url":"https:\/\/www.emanualonline.com\/blog\/author\/jclandry"}]}},"uagb_featured_image_src":{"full":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0681-obd2-cylinder-11-glow-plug-circuitopen-1050x525.png",1050,525,true]},"uagb_author_info":{"display_name":"JC Landry","author_link":"https:\/\/www.emanualonline.com\/blog\/author\/jclandry"},"uagb_comment_info":0,"uagb_excerpt":"The P0681 OBD-II code refers to an issue with the glow plug circuit for cylinder 11 in diesel engines. This code is activated when the engine control module (PCM) detects that the glow plug is not operating as it should, which can lead to difficulties in starting the engine, especially in cold weather. What Does&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78035","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/users\/26"}],"replies":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/comments?post=78035"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78035\/revisions"}],"predecessor-version":[{"id":84734,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78035\/revisions\/84734"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/93713"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=78035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=78035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=78035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}