{"id":78778,"date":"2025-07-27T15:29:52","date_gmt":"2025-07-27T20:29:52","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=78778"},"modified":"2025-07-27T15:29:52","modified_gmt":"2025-07-27T20:29:52","slug":"p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high","title":{"rendered":"P0B02 OBD2: AUXILIARY Transmission Fluid Pump Motor Phase U Current High"},"content":{"rendered":"<p>The P0B02 OBD-II code indicates a problem with the auxiliary transmission fluid pump motor. This code is associated with a high current reading in the Phase U of the motor, which can lead to significant operational issues for the vehicle.<\/p>\n<h2>What Does the P0B02 Code Mean?<\/h2>\n<p>When your vehicle&#8217;s computer detects that the current in the auxiliary transmission fluid pump motor (Phase U) is higher than expected, it triggers the P0B02 code. The auxiliary transmission fluid pump plays a crucial role in maintaining proper fluid pressure in the transmission, which is necessary for efficient gear shifting.<\/p>\n<h2>What Causes the P0B02 Code?<\/h2>\n<p>Several factors can trigger the P0B02 code, including:<\/p>\n<ul>\n<li>Failure of the power inverter module<\/li>\n<li>Outdated software in the power inverter module<\/li>\n<\/ul>\n<p>Both of these issues can lead to incorrect current flow to the auxiliary transmission fluid pump, resulting in the P0B02 code being set.<\/p>\n<h2>What Are the Symptoms of the P0B02 Code?<\/h2>\n<p>If your vehicle&#8217;s OBD system has registered the P0B02 code, you may experience the following symptoms:<\/p>\n<ul>\n<li>The vehicle will not operate<\/li>\n<\/ul>\n<p>Due to the severity of this code, immediate attention is necessary.<\/p>\n<h2>How Serious Is the P0B02 Code?<\/h2>\n<p>The P0B02 code is classified as urgent, meaning that it indicates a critical malfunction that can lead to severe damage to the vehicle. Continuing to drive with this code present can not only cause significant repair costs but also poses a risk to the safety of the driver and passengers.<\/p>\n<h2>How to Diagnose the P0B02 Code<\/h2>\n<p>Diagnosing the P0B02 code involves the following steps:<\/p>\n<ol>\n<li>Using an OBD-II scanner to confirm the code.<\/li>\n<li>Checking the vehicle&#8217;s service history for previous repairs related to the power inverter module.<\/li>\n<li>Inspecting the wiring and connectors associated with the auxiliary transmission fluid pump.<\/li>\n<li>Testing the power inverter module&#8217;s functionality and software version.<\/li>\n<\/ol>\n<p>Proper diagnosis is crucial to avoid unnecessary repairs.<\/p>\n<h2>Common Repairs for the P0B02 Code<\/h2>\n<p>Common repairs for the P0B02 code may include:<\/p>\n<ul>\n<li>Replacing the power inverter module if it is found to be defective.<\/li>\n<li>Updating the power inverter module software to the latest version.<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0B02 Code?<\/h2>\n<p>The cost to fix the P0B02 code can vary significantly based on the underlying issue. Generally, repairs can range from $300 to $1,500, depending on whether the power inverter module needs replacement or just a software update.<\/p>\n<h2>Can I Fix the P0B02 Code Myself?<\/h2>\n<p>While some aspects of diagnosing and repairing the P0B02 code can be done by a knowledgeable DIYer, it is highly recommended to consult with a professional mechanic. Proper tools and expertise are necessary to effectively diagnose and repair issues related to the power inverter module and auxiliary transmission fluid pump.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P0B02 OBD-II code indicates a problem with the auxiliary transmission fluid pump motor. This code is associated with a high current reading in the Phase U of the motor, which can lead to significant operational issues for the vehicle. What Does the P0B02 Code Mean? When your vehicle&#8217;s computer detects that the current in &hellip;<\/p>\n","protected":false},"author":26,"featured_media":91455,"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-78778","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 P0B02 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0B02 code, what causes auxiliary transmission fluid pump motor phase U current high, 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\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0B02 OBD2: AUXILIARY Transmission Fluid Pump Motor Phase U Current High\" \/>\n<meta property=\"og:description\" content=\"The P0B02 OBD-II code indicates a problem with the auxiliary transmission fluid pump motor. This code is associated with a high current reading in the\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-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=\"2025-07-27T20:29:52+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-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 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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\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-high-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/07\/p0b02-obd2-auxiliary-transmission-fluid-pump-motor-phase-u-current-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 P0B02 OBD-II code indicates a problem with the auxiliary transmission fluid pump motor. This code is associated with a high current reading in the Phase U of the motor, which can lead to significant operational issues for the vehicle. What Does the P0B02 Code Mean? When your vehicle&#8217;s computer detects that the current in&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78778","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=78778"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78778\/revisions"}],"predecessor-version":[{"id":85477,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/78778\/revisions\/85477"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/91455"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=78778"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=78778"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=78778"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}