{"id":77737,"date":"2025-08-29T10:53:04","date_gmt":"2025-08-29T15:53:04","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77737"},"modified":"2025-08-29T10:53:04","modified_gmt":"2025-08-29T15:53:04","slug":"p0472-obd2-exhaust-pressure-sensor-a-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0472-obd2-exhaust-pressure-sensor-a-circuit-low","title":{"rendered":"P0472 OBD2: Exhaust Pressure Sensor &#8220;A&#8221; Circuit Low"},"content":{"rendered":"<p>The P0472 code is an OBD-II trouble code that indicates a problem with the exhaust pressure sensor circuit. This code is associated with the exhaust pressure sensor, which is responsible for measuring the pressure in the exhaust manifold. When the Engine Control Module (PCM) detects an incorrect signal from this sensor, it triggers the P0472 code.<\/p>\n<h2>What Does the P0472 Code Mean?<\/h2>\n<p>The P0472 code signifies that the exhaust pressure sensor &#8220;A&#8221; circuit is reporting a low voltage reading. This can lead to inaccurate data being sent to the PCM, which can affect engine performance and emissions control.<\/p>\n<h2>What Causes the P0472 Code?<\/h2>\n<ul>\n<li>Exhaust pressure sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues in the exhaust pressure sensor circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0472 Code?<\/h2>\n<p>Common symptoms associated with the P0472 code may include:<\/p>\n<ul>\n<li>Check Engine Light illuminated<\/li>\n<li>Reduced engine performance<\/li>\n<li>Increased emissions<\/li>\n<li>Poor fuel economy<\/li>\n<\/ul>\n<h2>How Serious Is the P0472 Code?<\/h2>\n<p>The P0472 code is classified as a moderate severity issue. While it may not pose an immediate threat to vehicle safety or functionality, it is important to have it diagnosed and repaired in a reasonable time frame to ensure optimal engine performance and prevent further complications.<\/p>\n<h2>How to Diagnose the P0472 Code<\/h2>\n<p>To properly diagnose the P0472 code, a mechanic will typically perform the following steps:<\/p>\n<ul>\n<li>Use an OBD-II scanner to confirm the presence of the P0472 code and check for any additional codes.<\/li>\n<li>Inspect the exhaust pressure sensor and its wiring for signs of damage or corrosion.<\/li>\n<li>Test the exhaust pressure sensor&#8217;s voltage and resistance to ensure it is within specifications.<\/li>\n<li>Examine the PCM for any faults or issues related to the sensor.<\/li>\n<\/ul>\n<h2>Common Repairs for the P0472 Code<\/h2>\n<p>Repairs for the P0472 code may include:<\/p>\n<ul>\n<li>Replacing the exhaust pressure sensor<\/li>\n<li>Repairing or replacing damaged wiring and connectors<\/li>\n<li>Replacing the Powertrain Control Module (PCM) if it is found to be faulty<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0472 Code?<\/h2>\n<p>The cost to repair the P0472 code can vary widely based on the specific issue and the vehicle model. Generally, repairs can range from $100 to $800, depending on whether the exhaust pressure sensor needs to be replaced, wiring issues need to be addressed, or the PCM requires replacement.<\/p>\n<h2>Can I Fix the P0472 Code Myself?<\/h2>\n<p>While some vehicle owners may have the skills and tools to diagnose and fix the P0472 code themselves, it is recommended to seek professional assistance. Proper diagnosis requires specialized equipment, and incorrect repairs can lead to further complications.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0472 code is an OBD-II trouble code that indicates a problem with the exhaust pressure sensor circuit. This code is associated with the exhaust pressure sensor, which is responsible for measuring the pressure in the exhaust manifold. When the Engine Control Module (PCM) detects an incorrect signal from this sensor, it triggers the P0472 &hellip;<\/p>\n","protected":false},"author":26,"featured_media":94467,"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-77737","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 P0472 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0472 code, what causes exhaust pressure sensor &quot;A&quot; circuit low, 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\/p0472-obd2-exhaust-pressure-sensor-a-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0472 OBD2: Exhaust Pressure Sensor &quot;A&quot; Circuit Low\" \/>\n<meta property=\"og:description\" content=\"The P0472 code is an OBD-II trouble code that indicates a problem with the exhaust pressure sensor circuit. 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This code is associated with the exhaust pressure sensor, which is responsible for measuring the pressure in the exhaust manifold. When the Engine Control Module (PCM) detects an incorrect signal from this sensor, it triggers the P0472&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77737","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=77737"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77737\/revisions"}],"predecessor-version":[{"id":84436,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77737\/revisions\/84436"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/94467"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77737"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77737"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77737"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}