{"id":79671,"date":"2025-06-06T13:25:15","date_gmt":"2025-06-06T18:25:15","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79671"},"modified":"2025-06-06T13:25:15","modified_gmt":"2025-06-06T18:25:15","slug":"p2307-obd2-ignition-coil-c-primary-control-circuit-high","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2307-obd2-ignition-coil-c-primary-control-circuit-high","title":{"rendered":"P2307 OBD2: Ignition Coil &#8220;C&#8221; Primary Control Circuit High"},"content":{"rendered":"<p>The P2307 code is an OBD-II trouble code that indicates a problem with the ignition coil &#8220;C&#8221; primary control circuit. This code signifies that the Engine Control Module (PCM) has detected a high voltage in the circuit that controls the ignition coil, which can lead to significant engine issues.<\/p>\n<h2>What Does the P2307 Code Mean?<\/h2>\n<p>The P2307 code means that the PCM is unable to control the ignition coil &#8220;C&#8221; properly due to a high voltage in the primary control circuit. The ignition coil is responsible for igniting the air\/fuel mixture within the combustion chambers, and any malfunction in this circuit can severely affect engine performance.<\/p>\n<h2>What Causes the P2307 Code?<\/h2>\n<p>Several factors can trigger the P2307 code, including:<\/p>\n<ul>\n<li>Ignition coil failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues in the ignition circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2307 Code?<\/h2>\n<p>Common symptoms associated with the P2307 code include:<\/p>\n<ul>\n<li>Decreased engine performance<\/li>\n<li>Increased fuel consumption<\/li>\n<li>Engine stumbling or misfiring<\/li>\n<\/ul>\n<h2>How Serious Is the P2307 Code?<\/h2>\n<p>The P2307 code is classified as urgent. If not addressed promptly, it can lead to severe damage to the engine and can pose safety risks to the driver and passengers. Delaying repairs can result in more extensive and costly repairs down the line.<\/p>\n<h2>How to Diagnose the P2307 Code<\/h2>\n<p>To diagnose the P2307 code, follow these steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the P2307 code and check for any additional codes.<\/li>\n<li>Inspect the ignition coil and wiring for any signs of damage or wear.<\/li>\n<li>Test the ignition coil&#8217;s resistance and the voltage output from the PCM.<\/li>\n<li>Check the PCM for proper functionality.<\/li>\n<\/ol>\n<h2>Common Repairs for the P2307 Code<\/h2>\n<p>Common repairs that may be needed for the P2307 code include:<\/p>\n<ul>\n<li>Replacing the faulty ignition coil<\/li>\n<li>Repairing or replacing damaged wiring in the ignition circuit<\/li>\n<li>Replacing the PCM if it is found to be defective<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2307 Code?<\/h2>\n<p>The cost to fix the P2307 code can vary widely based on the specific issue and your vehicle model. On average, repairs may range from $100 to $600, depending on whether you need to replace the ignition coil or any wiring components.<\/p>\n<h2>Can I Fix the P2307 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may be able to handle simple repairs like replacing an ignition coil, diagnosing the issue thoroughly often requires specialized tools and knowledge. If you are not experienced in automotive repairs, it\u2019s advisable to consult a professional mechanic to ensure proper diagnosis and repair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P2307 code is an OBD-II trouble code that indicates a problem with the ignition coil &#8220;C&#8221; primary control circuit. This code signifies that the Engine Control Module (PCM) has detected a high voltage in the circuit that controls the ignition coil, which can lead to significant engine issues. What Does the P2307 Code Mean? &hellip;<\/p>\n","protected":false},"author":26,"featured_media":88141,"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-79671","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 P2307 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2307 code, what causes ignition coil &quot;C&quot; primary control circuit high, 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\/p2307-obd2-ignition-coil-c-primary-control-circuit-high\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2307 OBD2: Ignition Coil &quot;C&quot; Primary Control Circuit High\" \/>\n<meta property=\"og:description\" content=\"The P2307 code is an OBD-II trouble code that indicates a problem with the ignition coil &quot;C&quot; primary control circuit. This code signifies that the Engine\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p2307-obd2-ignition-coil-c-primary-control-circuit-high\" \/>\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=\"2025-06-06T18:25:15+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high.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=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2307-obd2-ignition-coil-c-primary-control-circuit-high#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2307-obd2-ignition-coil-c-primary-control-circuit-high\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P2307 OBD2: Ignition Coil &#8220;C&#8221; 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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\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2307-obd2-ignition-coil-c-primary-control-circuit-high-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 P2307 code is an OBD-II trouble code that indicates a problem with the ignition coil &#8220;C&#8221; primary control circuit. This code signifies that the Engine Control Module (PCM) has detected a high voltage in the circuit that controls the ignition coil, which can lead to significant engine issues. 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