{"id":77993,"date":"2025-08-25T13:34:29","date_gmt":"2025-08-25T18:34:29","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77993"},"modified":"2025-08-25T13:34:29","modified_gmt":"2025-08-25T18:34:29","slug":"p0657-obd2-actuator-supply-voltage-a-circuit-open","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0657-obd2-actuator-supply-voltage-a-circuit-open","title":{"rendered":"P0657 OBD2: Actuator Supply Voltage &#8220;A&#8221; Circuit\/Open"},"content":{"rendered":"<p>The OBD-II trouble code P0657 indicates a problem with the actuator supply voltage &#8220;A&#8221; circuit. This code is typically associated with the transmission system, specifically the actuators or solenoids that manage gear engagement and holding within the transmission.<\/p>\n<h2>What Does the P0657 Code Mean?<\/h2>\n<p>P0657 means that the engine control module (PCM) has detected an issue with one or more actuators not operating as intended. This can lead to improper transmission shifting, which can affect the vehicle&#8217;s overall performance.<\/p>\n<h2>What Causes the P0657 Code?<\/h2>\n<p>Several factors can trigger the P0657 code, 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<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0657 Code?<\/h2>\n<p>Drivers encountering the P0657 code may notice the following symptoms:<\/p>\n<ul>\n<li>Transmission may not shift properly<\/li>\n<li>Delayed or harsh shifting<\/li>\n<li>Check Engine Light illuminated<\/li>\n<\/ul>\n<h2>How Serious Is the P0657 Code?<\/h2>\n<p>The P0657 code is considered urgent. If not addressed promptly, it can lead to severe damage to the transmission or even compromise the safety of the driver and passengers. Immediate attention is needed to prevent further complications.<\/p>\n<h2>How to Diagnose the P0657 Code<\/h2>\n<p>Diagnosing the P0657 code involves several steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P0657 code.<\/li>\n<li>Inspect wiring and connectors associated with the actuators for any signs of damage or corrosion.<\/li>\n<li>Test the voltage at the actuator supply to ensure it is within specifications.<\/li>\n<li>Check for additional codes that may provide more context to the issue.<\/li>\n<li>Consider conducting a thorough inspection of the PCM and TCM.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0657 Code<\/h2>\n<p>Repairs for the P0657 code may include:<\/p>\n<ul>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Replacing faulty actuators or solenoids<\/li>\n<li>Reprogramming or replacing the PCM or TCM<\/li>\n<li>Fixing internal transmission issues<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0657 Code?<\/h2>\n<p>The cost to fix the P0657 code can vary widely depending on the root cause of the problem. Typical repair costs can range from $150 to $1,500, depending on whether it requires simple wiring repairs or a complete transmission overhaul.<\/p>\n<h2>Can I Fix the P0657 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may be able to handle minor wiring repairs or sensor replacements, diagnosing and fixing the P0657 code can be complex. It is recommended to consult with a professional mechanic for a thorough diagnosis and repair, as improper handling can lead to further damage.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The OBD-II trouble code P0657 indicates a problem with the actuator supply voltage &#8220;A&#8221; circuit. This code is typically associated with the transmission system, specifically the actuators or solenoids that manage gear engagement and holding within the transmission. What Does the P0657 Code Mean? P0657 means that the engine control module (PCM) has detected an &hellip;<\/p>\n","protected":false},"author":26,"featured_media":93833,"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-77993","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 P0657 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0657 code, what causes actuator supply voltage issues, and how to diagnose and fix common transmission problems.\" \/>\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\/p0657-obd2-actuator-supply-voltage-a-circuit-open\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0657 OBD2: Actuator Supply Voltage &quot;A&quot; Circuit\/Open\" \/>\n<meta property=\"og:description\" content=\"The OBD-II trouble code P0657 indicates a problem with the actuator supply voltage &quot;A&quot; circuit. This code is typically associated with the transmission\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0657-obd2-actuator-supply-voltage-a-circuit-open\" \/>\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=\"2025-08-25T18:34:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen.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\\\/p0657-obd2-actuator-supply-voltage-a-circuit-open#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0657-obd2-actuator-supply-voltage-a-circuit-open\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0657 OBD2: Actuator Supply Voltage &#8220;A&#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\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/08\/p0657-obd2-actuator-supply-voltage-a-circuitopen-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 trouble code P0657 indicates a problem with the actuator supply voltage &#8220;A&#8221; circuit. This code is typically associated with the transmission system, specifically the actuators or solenoids that manage gear engagement and holding within the transmission. What Does the P0657 Code Mean? P0657 means that the engine control module (PCM) has detected an&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77993","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=77993"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77993\/revisions"}],"predecessor-version":[{"id":84692,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77993\/revisions\/84692"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/93833"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}