{"id":78144,"date":"2025-08-22T18:42:02","date_gmt":"2025-08-22T23:42:02","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=78144"},"modified":"2025-08-22T18:42:02","modified_gmt":"2025-08-22T23:42:02","slug":"p0724-obd2-brake-switch-b-circuit-high","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0724-obd2-brake-switch-b-circuit-high","title":{"rendered":"P0724 OBD2: Brake Switch &#8220;B&#8221; Circuit High"},"content":{"rendered":"<h2>What Does the P0724 Code Mean?<\/h2>\n<p>OBD-II Code P0724 is defined as a Brake Switch &#8220;B&#8221; Circuit High. This code indicates that the engine control module (PCM) has detected an implausible signal from the brake switch, which is responsible for informing the PCM when the brake pedal is depressed. This switch also controls the vehicle&#8217;s brake lights.<\/p>\n<h2>What Causes the P0724 Code?<\/h2>\n<p>The P0724 code can be triggered by several factors, including:<\/p>\n<ul>\n<li>Brake switch failure<\/li>\n<li>Body Control Module (BCM) failure<\/li>\n<li>Wiring issues within the brake switch circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0724 Code?<\/h2>\n<p>Common symptoms associated with the P0724 code include:<\/p>\n<ul>\n<li>Brake lights may not illuminate<\/li>\n<li>Cruise control will not operate<\/li>\n<\/ul>\n<h2>How Serious Is the P0724 Code?<\/h2>\n<p>The P0724 code is classified as urgent, indicating that immediate action is necessary. Ignoring this issue can lead to significant malfunctions that may cause severe damage to the vehicle or pose a safety risk to the driver and passengers.<\/p>\n<h2>How to Diagnose the P0724 Code<\/h2>\n<p>Diagnosing the P0724 code involves a systematic approach:<\/p>\n<ol>\n<li>Check for any additional OBD-II codes that may provide further context.<\/li>\n<li>Inspect the brake switch and wiring for any visible damage or corrosion.<\/li>\n<li>Test the brake switch functionality using a multimeter.<\/li>\n<li>Examine the Body Control Module (BCM) for any faults.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0724 Code<\/h2>\n<p>Repairs for the P0724 code may include:<\/p>\n<ul>\n<li>Replacing the faulty brake switch<\/li>\n<li>Repairing or replacing damaged wiring<\/li>\n<li>Replacing the Body Control Module (BCM) if determined to be faulty<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0724 Code?<\/h2>\n<p>The cost to fix the P0724 code can vary widely depending on the specific repair needed. On average, you might expect to pay between $100 and $300 for parts and labor, depending on whether it&#8217;s a simple switch replacement or a more complex BCM repair.<\/p>\n<h2>Can I Fix the P0724 Code Myself?<\/h2>\n<p>While some DIY mechanics may be able to diagnose and replace the brake switch themselves, it is essential to have a clear understanding of the vehicle&#8217;s electrical system. If you are not confident in your skills, it\u2019s advisable to seek professional assistance to avoid causing further issues.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does the P0724 Code Mean? OBD-II Code P0724 is defined as a Brake Switch &#8220;B&#8221; Circuit High. This code indicates that the engine control module (PCM) has detected an implausible signal from the brake switch, which is responsible for informing the PCM when the brake pedal is depressed. This switch also controls the vehicle&#8217;s &hellip;<\/p>\n","protected":false},"author":26,"featured_media":93419,"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-78144","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 P0724 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0724 code, what causes the brake switch &quot;B&quot; circuit high, and how to diagnose and fix common issues to maintain optimal vehicle 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\/p0724-obd2-brake-switch-b-circuit-high\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0724 OBD2: Brake Switch &quot;B&quot; Circuit High\" \/>\n<meta property=\"og:description\" content=\"What Does the P0724 Code Mean? OBD-II Code P0724 is defined as a Brake Switch &quot;B&quot; Circuit High. This code indicates that the engine control module (PCM)\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0724-obd2-brake-switch-b-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=\"2025-08-22T23:42:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-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\\\/p0724-obd2-brake-switch-b-circuit-high#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0724-obd2-brake-switch-b-circuit-high\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0724 OBD2: Brake Switch &#8220;B&#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\/08\/p0724-obd2-brake-switch-b-circuit-high.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-circuit-high-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0724-obd2-brake-switch-b-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":"What Does the P0724 Code Mean? OBD-II Code P0724 is defined as a Brake Switch &#8220;B&#8221; Circuit High. This code indicates that the engine control module (PCM) has detected an implausible signal from the brake switch, which is responsible for informing the PCM when the brake pedal is depressed. This switch also controls the vehicle&#8217;s&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78144","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=78144"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78144\/revisions"}],"predecessor-version":[{"id":84843,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78144\/revisions\/84843"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/93419"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=78144"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=78144"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=78144"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}