{"id":78034,"date":"2025-08-24T13:43:01","date_gmt":"2025-08-24T18:43:01","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=78034"},"modified":"2025-08-24T14:19:22","modified_gmt":"2025-08-24T19:19:22","slug":"p0680-obd2-cylinder-10-glow-plug-circuit-open","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0680-obd2-cylinder-10-glow-plug-circuit-open","title":{"rendered":"P0680 OBD2: Cylinder 10 Glow Plug Circuit\/Open"},"content":{"rendered":"<h2>What Does the P0680 Code Mean?<\/h2>\n<p>The P0680 code is an OBD-II trouble code that indicates a problem with the glow plug circuit for cylinder 10 in diesel engines. The glow plug is responsible for preheating the cylinder to facilitate easier starting, especially in cold weather conditions.<\/p>\n<h2>What Causes the P0680 Code?<\/h2>\n<p>This code is triggered when the Engine Control Module (PCM) detects that the glow plug for cylinder 10 is not operating properly. Common causes include:<\/p>\n<ul>\n<li>Glow plug failure<\/li>\n<li>Glow plug control module failure<\/li>\n<li>Glow plug wiring harness failure<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0680 Code?<\/h2>\n<p>Vehicles with this code may exhibit the following symptoms:<\/p>\n<ul>\n<li>Engine may not start<\/li>\n<li>Difficulty starting in cold weather<\/li>\n<li>Engine misfire or rough idling<\/li>\n<\/ul>\n<h2>How Serious Is the P0680 Code?<\/h2>\n<p>The P0680 code is considered urgent and indicates that immediate action is necessary. Delaying repairs can lead to severe engine damage or safety hazards for the driver and passengers.<\/p>\n<h2>How to Diagnose the P0680 Code<\/h2>\n<p>Diagnosing the P0680 code involves a systematic approach:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the P0680 code.<\/li>\n<li>Inspect the glow plug and control module for visible damage.<\/li>\n<li>Test the glow plug wiring harness for continuity and shorts.<\/li>\n<li>Check the PCM for proper function and any related codes.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0680 Code<\/h2>\n<p>Repairs typically needed to resolve this code include:<\/p>\n<ul>\n<li>Replacing the faulty glow plug<\/li>\n<li>Replacing the glow plug control module<\/li>\n<li>Repairing or replacing the wiring harness<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0680 Code?<\/h2>\n<p>The cost of repairs can vary widely based on the specific issue and labor rates in your area. On average, you can expect to pay between $100 to $600 for diagnosis and repairs, depending on whether parts need to be replaced.<\/p>\n<h2>Can I Fix the P0680 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may be able to tackle this issue, it\u2019s important to have a solid understanding of automotive electrical systems. If you\u2019re unsure, it\u2019s advisable to consult a professional mechanic to avoid further damage to your vehicle.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does the P0680 Code Mean? The P0680 code is an OBD-II trouble code that indicates a problem with the glow plug circuit for cylinder 10 in diesel engines. The glow plug is responsible for preheating the cylinder to facilitate easier starting, especially in cold weather conditions. What Causes the P0680 Code? This code is &hellip;<\/p>\n","protected":false},"author":26,"featured_media":93715,"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-78034","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 P0680 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0680 code, what causes cylinder 10 glow plug circuit\/open, and how to diagnose and fix common issues 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\/p0680-obd2-cylinder-10-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=\"P0680 OBD2: Cylinder 10 Glow Plug Circuit\/Open\" \/>\n<meta property=\"og:description\" content=\"What Does the P0680 Code Mean? The P0680 code is an OBD-II trouble code that indicates a problem with the glow plug circuit for cylinder 10 in diesel\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0680-obd2-cylinder-10-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=\"2025-08-24T18:43:01+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-24T19:19:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0680-obd2-cylinder-10-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\" 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The P0680 code is an OBD-II trouble code that indicates a problem with the glow plug circuit for cylinder 10 in diesel engines. The glow plug is responsible for preheating the cylinder to facilitate easier starting, especially in cold weather conditions. What Causes the P0680 Code? This code is&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78034","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=78034"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78034\/revisions"}],"predecessor-version":[{"id":93749,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78034\/revisions\/93749"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/93715"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=78034"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=78034"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=78034"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}