{"id":78749,"date":"2025-07-27T15:57:44","date_gmt":"2025-07-27T20:57:44","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=78749"},"modified":"2025-07-27T15:57:44","modified_gmt":"2025-07-27T20:57:44","slug":"p0ae5-obd2-high-voltage-control-module-failure","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0ae5-obd2-high-voltage-control-module-failure","title":{"rendered":"P0AE5 OBD2: High Voltage Control Module Failure"},"content":{"rendered":"<p>The P0AE5 OBD-II code indicates a problem with the high voltage control module in your vehicle. This code is classified as a range\/performance issue, meaning that it reflects a malfunction in the high voltage system that could lead to serious vehicle performance problems.<\/p>\n<h2>What Does the P0AE5 Code Mean?<\/h2>\n<p>The P0AE5 code is set when the High Voltage Control Module detects that one or more relays controlling the high voltage system are faulty. This could lead to an inefficient operation of the vehicle&#8217;s electrical systems, particularly in hybrid or electric vehicles.<\/p>\n<h2>What Causes the P0AE5 Code?<\/h2>\n<p>Several factors can trigger the P0AE5 code, including:<\/p>\n<ul>\n<li>Auxiliary 12V battery failure<\/li>\n<li>High voltage control module failure<\/li>\n<li>High voltage system relay failure<\/li>\n<li>Wiring issues within the high voltage system<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0AE5 Code?<\/h2>\n<p>Common symptoms associated with the P0AE5 code may include:<\/p>\n<ul>\n<li>Warning lights on the dashboard<\/li>\n<li>Reduced engine performance<\/li>\n<li>Difficulty starting the vehicle<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P0AE5 Code?<\/h2>\n<p>The P0AE5 code is categorized as urgent. It indicates a significant malfunction that can lead to severe damage to the vehicle or pose risks to the driver and passengers. It is essential to address this code promptly to avoid further complications.<\/p>\n<h2>How to Diagnose the P0AE5 Code<\/h2>\n<p>To effectively diagnose the P0AE5 code, follow these steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P0AE5 code.<\/li>\n<li>Inspect the high voltage control module and associated relays for any visible signs of damage.<\/li>\n<li>Check the auxiliary 12V battery and ensure it is functioning correctly.<\/li>\n<li>Examine the wiring for any faults or disconnections.<\/li>\n<li>Perform tests on the relays to confirm their operational status.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0AE5 Code<\/h2>\n<p>Typical repairs that may be required for the P0AE5 code include:<\/p>\n<ul>\n<li>Replacing the faulty high voltage control module<\/li>\n<li>Repairing or replacing damaged wiring<\/li>\n<li>Replacing defective relays in the high voltage system<\/li>\n<li>Replacing the auxiliary 12V battery if it is found to be faulty<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0AE5 Code?<\/h2>\n<p>The cost to fix the P0AE5 code can vary widely based on the specific repair needed. On average, repairs can range from $200 to $1,500 or more, depending on parts and labor costs in your area.<\/p>\n<h2>Can I Fix the P0AE5 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may have the skills to diagnose and fix issues related to the P0AE5 code, it is crucial to understand that improper repairs can lead to more significant problems. If you are not experienced with high voltage systems, it is advisable to seek professional assistance to ensure that the issue is resolved safely and effectively.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0AE5 OBD-II code indicates a problem with the high voltage control module in your vehicle. This code is classified as a range\/performance issue, meaning that it reflects a malfunction in the high voltage system that could lead to serious vehicle performance problems. What Does the P0AE5 Code Mean? The P0AE5 code is set when &hellip;<\/p>\n","protected":false},"author":26,"featured_media":91547,"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-78749","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 P0AE5 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0AE5 code, what causes high voltage control module failure, and how to diagnose and fix common issues to maintain optimal vehicle 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\/p0ae5-obd2-high-voltage-control-module-failure\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0AE5 OBD2: High Voltage Control Module Failure\" \/>\n<meta property=\"og:description\" content=\"The P0AE5 OBD-II code indicates a problem with the high voltage control module in your vehicle. This code is classified as a range\/performance issue,\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0ae5-obd2-high-voltage-control-module-failure\" \/>\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=\"2025-07-27T20:57:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure.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 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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\/p0ae5-obd2-high-voltage-control-module-failure.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0ae5-obd2-high-voltage-control-module-failure-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 P0AE5 OBD-II code indicates a problem with the high voltage control module in your vehicle. This code is classified as a range\/performance issue, meaning that it reflects a malfunction in the high voltage system that could lead to serious vehicle performance problems. What Does the P0AE5 Code Mean? The P0AE5 code is set when&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78749","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=78749"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78749\/revisions"}],"predecessor-version":[{"id":85448,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78749\/revisions\/85448"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/91547"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=78749"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=78749"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=78749"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}