{"id":79852,"date":"2025-06-01T21:02:21","date_gmt":"2025-06-02T02:02:21","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79852"},"modified":"2025-06-04T04:04:44","modified_gmt":"2025-06-04T09:04:44","slug":"p2511-obd2-ecm-pcm-power-relay-sense-circuit-intermittent","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2511-obd2-ecm-pcm-power-relay-sense-circuit-intermittent","title":{"rendered":"P2511 OBD2: ECM\/PCM Power Relay Sense Circuit Intermittent"},"content":{"rendered":"<h2>What Does the P2511 Code Mean?<\/h2>\n<p>The P2511 OBD-II code indicates an issue with the engine control module (ECM) or powertrain control module (PCM) power relay sense circuit. Specifically, it suggests that the PCM has detected an intermittent variance in voltage from the power relay, which is crucial for powering the ECM.<\/p>\n<h2>What Causes the P2511 Code?<\/h2>\n<p>Several factors can trigger the P2511 code, including:<\/p>\n<ul>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Powertrain Control Module (PCM) power relay failure<\/li>\n<li>Wiring issues within the power relay circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2511 Code?<\/h2>\n<p>Common symptoms associated with the P2511 code include:<\/p>\n<ul>\n<li>Engine may not start<\/li>\n<li>Hard or no start in cold weather<\/li>\n<\/ul>\n<h2>How Serious Is the P2511 Code?<\/h2>\n<p>The P2511 code is classified as urgent. It indicates significant malfunctions that could lead to severe damage to the vehicle or pose risks to the driver and passengers. Immediate action is recommended to address this issue.<\/p>\n<h2>How to Diagnose the P2511 Code<\/h2>\n<p>Diagnosing the P2511 code involves a systematic approach:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the P2511 code and check for any additional codes.<\/li>\n<li>Inspect the power relay and wiring for signs of damage or wear.<\/li>\n<li>Test the voltage supply to the PCM from the power relay.<\/li>\n<li>Check the PCM for proper functionality.<\/li>\n<\/ol>\n<h2>Common Repairs for the P2511 Code<\/h2>\n<p>Repairs may include:<\/p>\n<ul>\n<li>Replacing the PCM if found to be faulty<\/li>\n<li>Replacing the power relay<\/li>\n<li>Repairing or replacing damaged wiring in the circuit<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2511 Code?<\/h2>\n<p>The cost to fix the P2511 code can vary widely depending on the underlying issue. Typical expenses may range from $100 to $1,000, depending on whether it&#8217;s a simple relay replacement or a more complex PCM issue.<\/p>\n<h2>Can I Fix the P2511 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may attempt to fix the P2511 code, it is essential to have a solid understanding of automotive electrical systems and the diagnostic process. Improper repairs can lead to further issues, so if you&#8217;re unsure, it&#8217;s advisable to seek professional help.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>What Does the P2511 Code Mean? The P2511 OBD-II code indicates an issue with the engine control module (ECM) or powertrain control module (PCM) power relay sense circuit. Specifically, it suggests that the PCM has detected an intermittent variance in voltage from the power relay, which is crucial for powering the ECM. What Causes the &hellip;<\/p>\n","protected":false},"author":26,"featured_media":83344,"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-79852","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 P2511 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2511 code, what causes ECM\/PCM power relay sense circuit intermittent, 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\/p2511-obd2-ecm-pcm-power-relay-sense-circuit-intermittent\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2511 OBD2: ECM\/PCM Power Relay Sense Circuit Intermittent\" \/>\n<meta property=\"og:description\" content=\"What Does the P2511 Code Mean? 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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\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2511-obd2-ecmpcm-power-relay-sense-circuit-intermittent-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 P2511 Code Mean? The P2511 OBD-II code indicates an issue with the engine control module (ECM) or powertrain control module (PCM) power relay sense circuit. Specifically, it suggests that the PCM has detected an intermittent variance in voltage from the power relay, which is crucial for powering the ECM. What Causes the&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79852","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=79852"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79852\/revisions"}],"predecessor-version":[{"id":83370,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79852\/revisions\/83370"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/83344"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79852"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79852"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79852"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}