{"id":77885,"date":"2025-08-26T11:19:02","date_gmt":"2025-08-26T16:19:02","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77885"},"modified":"2025-08-26T11:19:02","modified_gmt":"2025-08-26T16:19:02","slug":"p0573-obd2-brake-switch-a-circuit-high","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0573-obd2-brake-switch-a-circuit-high","title":{"rendered":"P0573 OBD2: Brake Switch &#8220;A&#8221; Circuit High"},"content":{"rendered":"<p>The P0573 OBD-II code indicates an issue with the brake switch circuit, specifically that the circuit is reading high. This code is associated with the brake switch, which plays a critical role in signaling the engine control module (PCM) about the status of the brake pedal.<\/p>\n<h2>What Does the P0573 Code Mean?<\/h2>\n<p>OBD-II Code P0573 is defined as a Brake Switch &#8220;A&#8221; Circuit High. This means that the PCM has detected an abnormal reading from the brake switch, which is responsible for indicating when the brake pedal is engaged. If the PCM senses that the vehicle is slowing down without the corresponding signal from the brake switch, it triggers this code.<\/p>\n<h2>What Causes the P0573 Code?<\/h2>\n<p>Several factors can lead to the P0573 code being triggered, including:<\/p>\n<ul>\n<li>Brake switch failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues within the brake switch circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0573 Code?<\/h2>\n<p>Drivers may notice several symptoms when the P0573 code is present:<\/p>\n<ul>\n<li>Brake lights may not illuminate<\/li>\n<li>Cruise control will not operate properly<\/li>\n<\/ul>\n<h2>How Serious Is the P0573 Code?<\/h2>\n<p>The P0573 code is categorized as urgent, requiring immediate attention. Ignoring this code can lead to dangerous situations, as it may affect braking and the functionality of the vehicle\u2019s cruise control, posing a risk to the driver and passengers.<\/p>\n<h2>How to Diagnose the P0573 Code<\/h2>\n<p>Diagnosing the P0573 code involves several steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the P0573 code and check for any additional codes.<\/li>\n<li>Inspect the brake switch for any visible damage or malfunction.<\/li>\n<li>Check the wiring and connectors associated with the brake switch for corrosion, damage, or loose connections.<\/li>\n<li>Test the brake switch operation with a multimeter to confirm if it is functioning correctly.<\/li>\n<li>Evaluate the PCM if no issues are found with the brake switch and wiring.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0573 Code<\/h2>\n<p>Common repairs for addressing the P0573 code may include:<\/p>\n<ul>\n<li>Replacing the brake switch<\/li>\n<li>Repairing or replacing faulty wiring<\/li>\n<li>Reprogramming or replacing the PCM if it is determined to be faulty<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0573 Code?<\/h2>\n<p>The cost to fix the P0573 code varies depending on the specific issue and labor costs in your area. On average, you might expect to pay between $100 and $300 for repairs, which may include parts and labor.<\/p>\n<h2>Can I Fix the P0573 Code Myself?<\/h2>\n<p>While some experienced DIYers may be able to replace the brake switch or repair wiring issues, it is recommended to consult with a professional mechanic for proper diagnosis and repair. Ensuring that the brake system is functioning correctly is crucial for safety.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0573 OBD-II code indicates an issue with the brake switch circuit, specifically that the circuit is reading high. This code is associated with the brake switch, which plays a critical role in signaling the engine control module (PCM) about the status of the brake pedal. What Does the P0573 Code Mean? OBD-II Code P0573 &hellip;<\/p>\n","protected":false},"author":26,"featured_media":94103,"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-77885","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 P0573 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0573 code, what causes brake switch &quot;A&quot; circuit high issues, and how to diagnose and fix common problems to maintain optimal vehicle safety.\" \/>\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\/p0573-obd2-brake-switch-a-circuit-high\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0573 OBD2: Brake Switch &quot;A&quot; Circuit High\" \/>\n<meta property=\"og:description\" content=\"The P0573 OBD-II code indicates an issue with the brake switch circuit, specifically that the circuit is reading high. This code is associated with the\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0573-obd2-brake-switch-a-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=\"2025-08-26T16:19:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-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\\\/p0573-obd2-brake-switch-a-circuit-high#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0573-obd2-brake-switch-a-circuit-high\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0573 OBD2: Brake Switch &#8220;A&#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\/p0573-obd2-brake-switch-a-circuit-high.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-circuit-high-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0573-obd2-brake-switch-a-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 P0573 OBD-II code indicates an issue with the brake switch circuit, specifically that the circuit is reading high. This code is associated with the brake switch, which plays a critical role in signaling the engine control module (PCM) about the status of the brake pedal. What Does the P0573 Code Mean? OBD-II Code P0573&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77885","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=77885"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77885\/revisions"}],"predecessor-version":[{"id":84584,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77885\/revisions\/84584"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/94103"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}