{"id":78641,"date":"2025-07-31T15:10:17","date_gmt":"2025-07-31T20:10:17","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=78641"},"modified":"2025-07-31T15:29:00","modified_gmt":"2025-07-31T20:29:00","slug":"p0a79-obd2-drive-motor-b-inverter-performance","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0a79-obd2-drive-motor-b-inverter-performance","title":{"rendered":"P0A79 OBD2: Drive Motor &#8220;B&#8221; Inverter Performance"},"content":{"rendered":"<p>The P0A79 code refers to a malfunction related to the Drive Motor &#8220;B&#8221; Inverter Performance. This code is a part of the On-Board Diagnostics II (OBD-II) system, which monitors various components of the vehicle&#8217;s engine and emission control systems.<\/p>\n<h2>What Does the P0A79 Code Mean?<\/h2>\n<p>The P0A79 code indicates that there is a problem with the inverter assembly that converts the direct current (DC) voltage from the battery into alternating current (AC) to power the hybrid motor and transaxle assembly. Specifically, it suggests that the high voltage control module has detected an issue with the inverter\u2019s performance, which may prevent the hybrid system from operating properly.<\/p>\n<h2>What Causes the P0A79 Code?<\/h2>\n<p>Several factors can trigger the P0A79 code, including:<\/p>\n<ul>\n<li>High voltage control module failure<\/li>\n<li>Inverter\/converter assembly failure<\/li>\n<li>Wiring issues within the high voltage system<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0A79 Code?<\/h2>\n<p>Common symptoms associated with the P0A79 code include:<\/p>\n<ul>\n<li>The high voltage system may not operate<\/li>\n<li>Warning lights on the dashboard, especially the check engine light<\/li>\n<li>Reduced power or performance from the hybrid system<\/li>\n<\/ul>\n<h2>How Serious Is the P0A79 Code?<\/h2>\n<p>The P0A79 code is considered urgent as it indicates a significant malfunction that can lead to severe damage to the vehicle and pose risks to the driver and passengers. Ignoring this code could result in complete failure of the hybrid system.<\/p>\n<h2>How to Diagnose the P0A79 Code<\/h2>\n<p>Diagnosing the P0A79 code involves the following steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the code and check for any additional codes that may be present.<\/li>\n<li>Inspect the wiring and connectors associated with the inverter\/converter assembly for any signs of damage or corrosion.<\/li>\n<li>Test the high voltage control module and inverter assembly to determine if they are functioning correctly.<\/li>\n<li>Check for software updates or recalls that may affect the hybrid system.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0A79 Code<\/h2>\n<p>Potential repairs for the P0A79 code may include:<\/p>\n<ul>\n<li>Replacing the high voltage control module<\/li>\n<li>Repairing or replacing the inverter\/converter assembly<\/li>\n<li>Fixing any wiring issues or damaged connectors<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0A79 Code?<\/h2>\n<p>The cost to fix the P0A79 code can vary significantly based on the nature of the problem and the vehicle make and model. You might expect to pay anywhere from $100 to $2,000 or more, depending on whether a simple repair or a complete assembly replacement is necessary.<\/p>\n<h2>Can I Fix the P0A79 Code Myself?<\/h2>\n<p>While some basic diagnostics can be performed by vehicle owners, fixing the P0A79 code often requires specialized knowledge and equipment, especially when dealing with high voltage systems. It is advisable to consult with a professional mechanic for a thorough diagnosis and repair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0A79 code refers to a malfunction related to the Drive Motor &#8220;B&#8221; Inverter Performance. This code is a part of the On-Board Diagnostics II (OBD-II) system, which monitors various components of the vehicle&#8217;s engine and emission control systems. What Does the P0A79 Code Mean? The P0A79 code indicates that there is a problem with &hellip;<\/p>\n","protected":false},"author":26,"featured_media":91915,"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-78641","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 P0A79 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0A79 code, what causes Drive Motor &quot;B&quot; Inverter Performance issues, and how to diagnose and fix common problems 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\/p0a79-obd2-drive-motor-b-inverter-performance\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0A79 OBD2: Drive Motor &quot;B&quot; Inverter Performance\" \/>\n<meta property=\"og:description\" content=\"The P0A79 code refers to a malfunction related to the Drive Motor &quot;B&quot; Inverter Performance. 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This code is a part of the On-Board Diagnostics II (OBD-II) system, which monitors various components of the vehicle&#8217;s engine and emission control systems. What Does the P0A79 Code Mean? The P0A79 code indicates that there is a problem with&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78641","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=78641"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78641\/revisions"}],"predecessor-version":[{"id":91977,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78641\/revisions\/91977"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/91915"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=78641"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=78641"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=78641"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}