{"id":79105,"date":"2025-07-13T16:52:55","date_gmt":"2025-07-13T21:52:55","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79105"},"modified":"2025-07-13T16:52:55","modified_gmt":"2025-07-13T21:52:55","slug":"p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high","title":{"rendered":"P0C49 OBD2: Hybrid Battery Pack Coolant Pump Control Circuit High"},"content":{"rendered":"<p>The P0C49 OBD-II code indicates a problem with the Hybrid Battery Pack Coolant Pump Control Circuit. This code is associated with the cooling system of the hybrid battery pack, which is crucial for maintaining optimal battery performance and preventing overheating.<\/p>\n<h2>What Does the P0C49 Code Mean?<\/h2>\n<p>This code signifies that the Hybrid Battery Pack Coolant Pump is not functioning as intended, leading to potential overheating of the battery pack. The Hybrid Powertrain Control Module (HPCM) monitors the coolant pump&#8217;s operation, and when it detects a fault, the P0C49 code is stored.<\/p>\n<h2>What Causes the P0C49 Code?<\/h2>\n<p>Several factors can trigger the P0C49 code:<\/p>\n<ul>\n<li>Failure of the high voltage powertrain control module<\/li>\n<li>Leaks in the high voltage cooling system<\/li>\n<li>Low coolant levels in the high voltage system<\/li>\n<li>Water pump failure<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0C49 Code?<\/h2>\n<p>Symptoms associated with the P0C49 code may include:<\/p>\n<ul>\n<li>High voltage system may not operate<\/li>\n<li>Overheating battery pack<\/li>\n<li>Decreased overall hybrid vehicle performance<\/li>\n<\/ul>\n<h2>How Serious Is the P0C49 Code?<\/h2>\n<p>The P0C49 code is classified as urgent. Immediate action is necessary as neglecting to address this issue can lead to severe damage to the hybrid battery pack and compromise vehicle safety. It is advisable to diagnose and repair this fault promptly.<\/p>\n<h2>How to Diagnose the P0C49 Code<\/h2>\n<p>Diagnosing the P0C49 code involves several steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the P0C49 code.<\/li>\n<li>Inspect the high voltage cooling system for leaks or damage.<\/li>\n<li>Check coolant levels and refill if necessary.<\/li>\n<li>Test the operation of the coolant pump and confirm whether it is receiving the appropriate signals from the HPCM.<\/li>\n<li>Examine the powertrain control module for any faults.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0C49 Code<\/h2>\n<p>Repairs for the P0C49 code may include:<\/p>\n<ul>\n<li>Replacing the coolant pump<\/li>\n<li>Repairing leaks in the cooling system<\/li>\n<li>Refilling or replacing coolant<\/li>\n<li>Repairing or replacing the high voltage powertrain control module<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0C49 Code?<\/h2>\n<p>The cost to fix the P0C49 code can vary widely based on the specific issue and the make and model of the vehicle. On average, repairs can range from $200 to $1,500, depending on whether you need to replace the coolant pump, fix leaks, or address control module failures.<\/p>\n<h2>Can I Fix the P0C49 Code Myself?<\/h2>\n<p>Fixing the P0C49 code may be feasible for those with automotive repair experience, especially if it involves checking coolant levels or inspecting for leaks. However, due to the complexity of hybrid systems and the potential risks involved, it is often advisable to seek professional assistance to ensure a proper diagnosis and repair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0C49 OBD-II code indicates a problem with the Hybrid Battery Pack Coolant Pump Control Circuit. This code is associated with the cooling system of the hybrid battery pack, which is crucial for maintaining optimal battery performance and preventing overheating. What Does the P0C49 Code Mean? This code signifies that the Hybrid Battery Pack Coolant &hellip;<\/p>\n","protected":false},"author":26,"featured_media":89903,"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-79105","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 v26.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>OBD2 Code P0C49 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0C49 code, what causes Hybrid Battery Pack Coolant Pump Control Circuit High, and how to diagnose and fix common issues to maintain optimal battery 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\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0C49 OBD2: Hybrid Battery Pack Coolant Pump Control Circuit High\" \/>\n<meta property=\"og:description\" content=\"The P0C49 OBD-II code indicates a problem with the Hybrid Battery Pack Coolant Pump Control Circuit. This code is associated with the cooling system of\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high\" \/>\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=\"2025-07-13T21:52:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high.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\" 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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\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0c49-obd2-hybrid-battery-pack-coolant-pump-control-circuit-high-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 P0C49 OBD-II code indicates a problem with the Hybrid Battery Pack Coolant Pump Control Circuit. This code is associated with the cooling system of the hybrid battery pack, which is crucial for maintaining optimal battery performance and preventing overheating. What Does the P0C49 Code Mean? This code signifies that the Hybrid Battery Pack Coolant&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79105","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=79105"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79105\/revisions"}],"predecessor-version":[{"id":85804,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79105\/revisions\/85804"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/89903"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79105"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79105"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}