{"id":79788,"date":"2025-06-02T13:44:48","date_gmt":"2025-06-02T18:44:48","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79788"},"modified":"2025-06-04T03:50:50","modified_gmt":"2025-06-04T08:50:50","slug":"p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit","title":{"rendered":"P245B OBD2: Exhaust Gas Recirculation Cooler Bypass Control Circuit"},"content":{"rendered":"<p>The P245B OBD-II code is related to the Exhaust Gas Recirculation (EGR) cooler bypass control circuit. It indicates that the powertrain control module (PCM) has detected a malfunction within the EGR system.<\/p>\n<h2>What Does the P245B Code Mean?<\/h2>\n<p>The P245B code is triggered when the PCM detects an issue with the EGR cooler bypass valve&#8217;s operation. This valve plays a crucial role in recirculating exhaust gases back into the engine to optimize combustion efficiency and reduce emissions.<\/p>\n<h2>What Causes the P245B Code?<\/h2>\n<p>Several issues can lead to the P245B code being stored, including:<\/p>\n<ul>\n<li>Damaged EGR cooler assembly<\/li>\n<li>EGR cooler bypass valve failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P245B Code?<\/h2>\n<p>Common symptoms associated with the P245B code may include:<\/p>\n<ul>\n<li>Check Engine Light illuminated<\/li>\n<li>Decreased engine performance<\/li>\n<li>Increased emissions<\/li>\n<li>Rough idling or stalling<\/li>\n<\/ul>\n<h2>How Serious Is the P245B Code?<\/h2>\n<p>The P245B code is classified as urgent, indicating that immediate attention is necessary. Ignoring this code can lead to severe engine damage and may pose safety risks to the driver and passengers.<\/p>\n<h2>How to Diagnose the P245B Code<\/h2>\n<p>To diagnose the P245B code, a mechanic should follow a systematic approach:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P245B code.<\/li>\n<li>Perform a visual inspection of the EGR cooler and bypass valve for signs of damage or leaks.<\/li>\n<li>Test the functionality of the EGR cooler bypass valve.<\/li>\n<li>Check the PCM for any faults or updates needed.<\/li>\n<\/ol>\n<h2>Common Repairs for the P245B Code<\/h2>\n<p>Common repairs to address the P245B code may include:<\/p>\n<ul>\n<li>Replacing a damaged EGR cooler assembly<\/li>\n<li>Replacing a faulty EGR cooler bypass valve<\/li>\n<li>Repairing or replacing the PCM if it is found to be defective<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P245B Code?<\/h2>\n<p>The cost to fix the P245B code can vary widely depending on the specific issue and vehicle make\/model. Typical repair costs may range from $200 to $1,500, including parts and labor.<\/p>\n<h2>Can I Fix the P245B Code Myself?<\/h2>\n<p>While some DIY enthusiasts may be able to address minor issues such as replacing hoses or connectors, the complexity of the EGR system often requires professional diagnosis and repair. A proper understanding of engine diagnostics is essential to avoid unnecessary repairs.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P245B OBD-II code is related to the Exhaust Gas Recirculation (EGR) cooler bypass control circuit. It indicates that the powertrain control module (PCM) has detected a malfunction within the EGR system. What Does the P245B Code Mean? The P245B code is triggered when the PCM detects an issue with the EGR cooler bypass valve&#8217;s &hellip;<\/p>\n","protected":false},"author":26,"featured_media":83567,"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-79788","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 P245B \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P245B code, what causes Exhaust Gas Recirculation Cooler Bypass Control Circuit issues, and how to diagnose and fix common problems.\" \/>\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\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P245B OBD2: Exhaust Gas Recirculation Cooler Bypass Control Circuit\" \/>\n<meta property=\"og:description\" content=\"The P245B OBD-II code is related to the Exhaust Gas Recirculation (EGR) cooler bypass control circuit. 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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\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p245b-obd2-exhaust-gas-recirculation-cooler-bypass-control-circuit-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 P245B OBD-II code is related to the Exhaust Gas Recirculation (EGR) cooler bypass control circuit. It indicates that the powertrain control module (PCM) has detected a malfunction within the EGR system. What Does the P245B Code Mean? The P245B code is triggered when the PCM detects an issue with the EGR cooler bypass valve&#8217;s&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79788","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=79788"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79788\/revisions"}],"predecessor-version":[{"id":83569,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79788\/revisions\/83569"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/83567"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79788"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79788"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79788"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}