{"id":77747,"date":"2025-08-29T10:52:28","date_gmt":"2025-08-29T15:52:28","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77747"},"modified":"2025-08-29T10:52:28","modified_gmt":"2025-08-29T15:52:28","slug":"p047c-obd2-exhaust-pressure-sensor-b-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low","title":{"rendered":"P047C OBD2: Exhaust Pressure Sensor &#8220;B&#8221; Circuit Low"},"content":{"rendered":"<p>The P047C OBD-II code indicates an issue with the exhaust pressure sensor circuit. This code is triggered when the engine control module (PCM) detects a low signal from the exhaust pressure sensor &#8220;B.&#8221; Understanding this code is crucial for maintaining optimal engine performance.<\/p>\n<h2>What Does the P047C Code Mean?<\/h2>\n<p>The P047C code signifies that the PCM has identified a low voltage or incorrect signal from the exhaust pressure sensor designated as &#8220;B.&#8221; This sensor plays a vital role in measuring the exhaust pressure within the manifold, which is essential for the engine&#8217;s fuel management and overall efficiency.<\/p>\n<h2>What Causes the P047C Code?<\/h2>\n<p>Several factors can lead to the P047C code being triggered, including:<\/p>\n<ul>\n<li>Exhaust pressure sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues, such as damaged or corroded connectors<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P047C Code?<\/h2>\n<p>When the P047C code is present, you may notice several symptoms, including:<\/p>\n<ul>\n<li>Check Engine Light illuminated on the dashboard<\/li>\n<li>Decreased engine performance<\/li>\n<li>Increased emissions<\/li>\n<li>Poor fuel economy<\/li>\n<\/ul>\n<h2>How Serious Is the P047C Code?<\/h2>\n<p>The severity of the P047C code is moderate. While it may not immediately threaten the vehicle&#8217;s safety or functionality, it is essential to address it promptly to prevent further complications and maintain your vehicle&#8217;s performance.<\/p>\n<h2>How to Diagnose the P047C Code<\/h2>\n<p>Diagnosing the P047C code typically involves the following steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P047C code.<\/li>\n<li>Inspect the exhaust pressure sensor and associated wiring for any visible damage.<\/li>\n<li>Check the sensor&#8217;s voltage and ground connections to ensure they are within specifications.<\/li>\n<li>Test the exhaust pressure sensor for proper functionality.<\/li>\n<li>Evaluate the PCM for any potential failures.<\/li>\n<\/ol>\n<h2>Common Repairs for the P047C Code<\/h2>\n<p>Common repairs to address the P047C code may include:<\/p>\n<ul>\n<li>Replacing the exhaust pressure sensor<\/li>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Reprogramming or replacing the PCM if it&#8217;s found to be faulty<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P047C Code?<\/h2>\n<p>The cost of fixing the P047C code can vary depending on the specific issue and labor rates in your area. Generally, you can expect to spend between $100 and $500 for repairs, including parts and labor.<\/p>\n<h2>Can I Fix the P047C Code Myself?<\/h2>\n<p>If you have experience with automotive repairs, you may be able to diagnose and fix the P047C code yourself. However, if you&#8217;re not confident in your skills, it&#8217;s advisable to seek help from a professional mechanic to ensure the issue is resolved correctly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P047C OBD-II code indicates an issue with the exhaust pressure sensor circuit. This code is triggered when the engine control module (PCM) detects a low signal from the exhaust pressure sensor &#8220;B.&#8221; Understanding this code is crucial for maintaining optimal engine performance. What Does the P047C Code Mean? The P047C code signifies that the &hellip;<\/p>\n","protected":false},"author":26,"featured_media":94447,"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-77747","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 P047C \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P047C code, what causes exhaust pressure sensor &quot;B&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\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P047C OBD2: Exhaust Pressure Sensor &quot;B&quot; Circuit Low\" \/>\n<meta property=\"og:description\" content=\"The P047C OBD-II code indicates an issue with the exhaust pressure sensor circuit. This code is triggered when the engine control module (PCM) detects a\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low\" \/>\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=\"2025-08-29T15:52:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low.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\\\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P047C OBD2: Exhaust Pressure Sensor &#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\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p047c-obd2-exhaust-pressure-sensor-b-circuit-low-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 P047C OBD-II code indicates an issue with the exhaust pressure sensor circuit. This code is triggered when the engine control module (PCM) detects a low signal from the exhaust pressure sensor &#8220;B.&#8221; Understanding this code is crucial for maintaining optimal engine performance. What Does the P047C Code Mean? The P047C code signifies that the&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77747","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=77747"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77747\/revisions"}],"predecessor-version":[{"id":84446,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77747\/revisions\/84446"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/94447"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77747"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77747"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77747"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}