{"id":79722,"date":"2025-06-05T12:59:17","date_gmt":"2025-06-05T17:59:17","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79722"},"modified":"2025-09-02T22:21:55","modified_gmt":"2025-09-03T03:21:55","slug":"p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control","title":{"rendered":"P240A OBD2: Evaporative Emission System Leak Detection Pump Heater Control"},"content":{"rendered":"<p>The P240A OBD-II code refers to a problem with the evaporative emission system&#8217;s leak detection pump heater control. This code is triggered when the onboard diagnostics system detects an issue related to the heating element of the leak detection pump.<\/p>\n<h2>What Does the P240A Code Mean?<\/h2>\n<p>The P240A code indicates that the vehicle&#8217;s Powertrain Control Module (PCM) has identified a fault in the evaporative emission system. Specifically, it relates to the leak detection pump that is responsible for pressurizing the fuel tank to check for leaks when the vehicle is turned off.<\/p>\n<h2>What Causes the P240A Code?<\/h2>\n<p>Several issues can cause the P240A code to be set, including:<\/p>\n<ul>\n<li>DMTL (Diagnostic Module Tank Leakage) pump failure<\/li>\n<li>Powertrain Control Module (PCM) software needing an update<\/li>\n<li>Wiring issues affecting the DMTL pump<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P240A Code?<\/h2>\n<p>Symptoms of the P240A code can vary but may include:<\/p>\n<ul>\n<li>Check Engine Light illuminated<\/li>\n<li>Increased emissions<\/li>\n<li>Possible fuel odor due to leaks<\/li>\n<li>Reduced engine performance<\/li>\n<\/ul>\n<h2>How Serious Is the P240A Code?<\/h2>\n<p>The P240A code is considered moderate in severity. While it may not pose an immediate threat to the vehicle&#8217;s safety or functionality, it is essential to diagnose and address the issue within a reasonable timeframe to prevent further complications.<\/p>\n<h2>How to Diagnose the P240A Code<\/h2>\n<p>Diagnosing the P240A code typically involves:<\/p>\n<ol>\n<li>Using an OBD-II scanner to confirm the code and check for any additional codes.<\/li>\n<li>Inspecting the DMTL pump and related wiring for signs of damage or failure.<\/li>\n<li>Verifying the PCM software version and checking for updates.<\/li>\n<li>Conducting a visual inspection of the evaporative emission system for leaks or other issues.<\/li>\n<\/ol>\n<h2>Common Repairs for the P240A Code<\/h2>\n<p>Common repairs for the P240A code may include:<\/p>\n<ul>\n<li>Replacing the DMTL pump if it is found to be faulty.<\/li>\n<li>Updating the PCM software to ensure it is running the latest version.<\/li>\n<li>Repairing or replacing damaged wiring or connectors related to the DMTL pump.<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P240A Code?<\/h2>\n<p>The cost to fix the P240A code can vary widely depending on the specific issue and the labor rates in your area. On average, repairs may range from $100 to $500, including parts and labor.<\/p>\n<h2>Can I Fix the P240A Code Myself?<\/h2>\n<p>While some diagnostic steps can be performed by a knowledgeable DIYer, such as checking for visible wiring issues, the replacement of the DMTL pump or PCM software updates may require specialized tools and expertise.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P240A OBD-II code refers to a problem with the evaporative emission system&#8217;s leak detection pump heater control. This code is triggered when the onboard diagnostics system detects an issue related to the heating element of the leak detection pump. What Does the P240A Code Mean? The P240A code indicates that the vehicle&#8217;s Powertrain Control &hellip;<\/p>\n","protected":false},"author":26,"featured_media":88013,"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-79722","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 P240A \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P240A code, what causes evaporative emission system leak detection pump heater control issues, and how to diagnose and fix common problems 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\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P240A OBD2: Evaporative Emission System Leak Detection Pump Heater Control\" \/>\n<meta property=\"og:description\" content=\"The P240A OBD-II code refers to a problem with the evaporative emission system&#039;s leak detection pump heater control. 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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\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p240a-obd2-evaporative-emission-system-leak-detection-pump-heater-control-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 P240A OBD-II code refers to a problem with the evaporative emission system&#8217;s leak detection pump heater control. This code is triggered when the onboard diagnostics system detects an issue related to the heating element of the leak detection pump. What Does the P240A Code Mean? The P240A code indicates that the vehicle&#8217;s Powertrain Control&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79722","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=79722"}],"version-history":[{"count":2,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79722\/revisions"}],"predecessor-version":[{"id":95193,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79722\/revisions\/95193"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/88013"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}