{"id":80077,"date":"2025-05-25T11:12:11","date_gmt":"2025-05-25T16:12:11","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=80077"},"modified":"2025-06-04T05:11:14","modified_gmt":"2025-06-04T10:11:14","slug":"p2670-obd2-actuator-supply-voltage-b-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2670-obd2-actuator-supply-voltage-b-circuit-low","title":{"rendered":"P2670 OBD2: Actuator Supply Voltage &#8220;B&#8221; Circuit Low"},"content":{"rendered":"<p>The OBD-II code P2670 indicates a fault in the actuator supply voltage &#8220;B&#8221; circuit, which affects the performance of the transmission system in your vehicle. This code often suggests that there is an issue with the voltage supplied to one of the transmission actuators.<\/p>\n<h2>What Does the P2670 Code Mean?<\/h2>\n<p>The P2670 code is triggered when the Powertrain Control Module (PCM) detects a low voltage condition in the actuator supply voltage &#8220;B&#8221; circuit. This can lead to improper functioning of the transmission, as actuators are responsible for engaging and holding gears.<\/p>\n<h2>What Causes the P2670 Code?<\/h2>\n<p>Several factors can lead to the P2670 code being set, including:<\/p>\n<ul>\n<li>Internal transmission failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Transmission actuator failure<\/li>\n<li>Transmission Control Module (TCM) failure<\/li>\n<li>Wiring issues related to the actuator circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2670 Code?<\/h2>\n<p>When the P2670 code is present, you may experience the following symptoms:<\/p>\n<ul>\n<li>Transmission may not shift properly<\/li>\n<li>Unusual noises from the transmission<\/li>\n<li>Warning lights on the dashboard<\/li>\n<\/ul>\n<h2>How Serious Is the P2670 Code?<\/h2>\n<p>The P2670 code is considered urgent. If left unaddressed, it can lead to severe damage to the transmission system, potentially resulting in costly repairs and unsafe driving conditions.<\/p>\n<h2>How to Diagnose the P2670 Code<\/h2>\n<p>To diagnose the P2670 code, a mechanic will typically follow these steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the code and check for any related codes.<\/li>\n<li>Inspect the wiring and connectors for any signs of damage or corrosion.<\/li>\n<li>Test the voltage at the actuator supply circuit.<\/li>\n<li>Assess the functionality of the PCM and TCM.<\/li>\n<\/ol>\n<h2>Common Repairs for the P2670 Code<\/h2>\n<p>Common repairs that may resolve the P2670 code include:<\/p>\n<ul>\n<li>Repairing or replacing damaged wiring and connectors<\/li>\n<li>Replacing faulty actuators<\/li>\n<li>Reprogramming or replacing the PCM\/TCM<\/li>\n<li>Addressing any internal transmission failures<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2670 Code?<\/h2>\n<p>The cost to fix the P2670 code can vary significantly depending on the underlying issue. Basic repairs like wiring fixes may cost a few hundred dollars, while replacing a PCM or TCM can run into the thousands. It&#8217;s best to consult with a professional mechanic for an accurate estimate.<\/p>\n<h2>Can I Fix the P2670 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may be able to troubleshoot and fix minor wiring issues, diagnosing and repairing transmission-related problems often requires specialized knowledge and tools. It&#8217;s recommended to consult a professional mechanic to ensure proper diagnosis and repair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The OBD-II code P2670 indicates a fault in the actuator supply voltage &#8220;B&#8221; circuit, which affects the performance of the transmission system in your vehicle. This code often suggests that there is an issue with the voltage supplied to one of the transmission actuators. What Does the P2670 Code Mean? The P2670 code is triggered &hellip;<\/p>\n","protected":false},"author":26,"featured_media":82438,"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-80077","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 P2670 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2670 code, what causes actuator supply voltage &quot;B&quot; circuit low, 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\/p2670-obd2-actuator-supply-voltage-b-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2670 OBD2: Actuator Supply Voltage &quot;B&quot; Circuit Low\" \/>\n<meta property=\"og:description\" content=\"The OBD-II code P2670 indicates a fault in the actuator supply voltage &quot;B&quot; circuit, which affects the performance of the transmission system in your\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p2670-obd2-actuator-supply-voltage-b-circuit-low\" \/>\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=\"2025-05-25T16:12:11+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-04T10:11:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low.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 name=\"twitter:creator\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:site\" content=\"@eManualOnline\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"JC Landry\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2670-obd2-actuator-supply-voltage-b-circuit-low#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p2670-obd2-actuator-supply-voltage-b-circuit-low\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P2670 OBD2: Actuator Supply Voltage &#8220;B&#8221; 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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\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2670-obd2-actuator-supply-voltage-b-circuit-low-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 OBD-II code P2670 indicates a fault in the actuator supply voltage &#8220;B&#8221; circuit, which affects the performance of the transmission system in your vehicle. This code often suggests that there is an issue with the voltage supplied to one of the transmission actuators. What Does the P2670 Code Mean? The P2670 code is triggered&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80077","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=80077"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80077\/revisions"}],"predecessor-version":[{"id":82440,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80077\/revisions\/82440"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/82438"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=80077"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=80077"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=80077"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}