{"id":80165,"date":"2025-05-23T08:53:04","date_gmt":"2025-05-23T13:53:04","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=80165"},"modified":"2025-06-04T05:12:49","modified_gmt":"2025-06-04T10:12:49","slug":"p2738-obd2-pressure-control-solenoid-f-control-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low","title":{"rendered":"P2738 OBD2: Pressure Control Solenoid &#8220;F&#8221; Control Circuit Low"},"content":{"rendered":"<p>The P2738 code is a diagnostic trouble code (DTC) that indicates a problem within the pressure control solenoid &#8220;F&#8221; circuit in your vehicle&#8217;s transmission system. This code is part of the OBD-II system that monitors the performance of your vehicle and helps identify issues that may affect its operation.<\/p>\n<h2>What Does the P2738 Code Mean?<\/h2>\n<p>The P2738 code signifies that the Transmission Control Module (TCM) has detected a low voltage condition in the control circuit of the pressure control solenoid &#8220;F&#8221;. This solenoid is responsible for regulating hydraulic pressure in the transmission, which is essential for proper shifting and overall transmission performance.<\/p>\n<h2>What Causes the P2738 Code?<\/h2>\n<p>Several factors can trigger the P2738 code, including:<\/p>\n<ul>\n<li>Failure of the Transmission Control Module (TCM)<\/li>\n<li>Low transmission fluid levels<\/li>\n<li>Failure of the transmission shift solenoid<\/li>\n<li>Wiring issues, such as damaged wires or poor connections<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2738 Code?<\/h2>\n<p>When the P2738 code is present, you may experience the following symptoms:<\/p>\n<ul>\n<li>Transmission may not shift properly<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P2738 Code?<\/h2>\n<p>The P2738 code is considered urgent and requires immediate attention. Ignoring this code can lead to severe damage to the transmission, which can affect the safety and drivability of the vehicle.<\/p>\n<h2>How to Diagnose the P2738 Code<\/h2>\n<p>To diagnose the P2738 code, a mechanic will typically follow these steps:<\/p>\n<ul>\n<li>Use an OBD-II scanner to confirm the presence of the P2738 code.<\/li>\n<li>Check the transmission fluid level and condition.<\/li>\n<li>Inspect the wiring and connectors related to the pressure control solenoid.<\/li>\n<li>Test the functionality of the TCM and the shift solenoid.<\/li>\n<\/ul>\n<h2>Common Repairs for the P2738 Code<\/h2>\n<p>Common repairs for the P2738 code may include:<\/p>\n<ul>\n<li>Replacing the Transmission Control Module (TCM)<\/li>\n<li>Refilling or replacing transmission fluid<\/li>\n<li>Replacing the faulty transmission shift solenoid<\/li>\n<li>Repairing or replacing damaged wiring and connectors<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2738 Code?<\/h2>\n<p>The cost to fix the P2738 code can vary widely depending on the underlying cause. On average, repairs may range from $100 to $1,000 or more, depending on whether you need to replace the TCM, solenoid, or perform wiring repairs.<\/p>\n<h2>Can I Fix the P2738 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may be able to address basic issues such as checking fluid levels or inspecting wiring, it is generally recommended to seek professional assistance for the P2738 code. Proper diagnosis and repair often require specialized tools and knowledge, especially for transmission-related issues.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P2738 code is a diagnostic trouble code (DTC) that indicates a problem within the pressure control solenoid &#8220;F&#8221; circuit in your vehicle&#8217;s transmission system. This code is part of the OBD-II system that monitors the performance of your vehicle and helps identify issues that may affect its operation. What Does the P2738 Code Mean? &hellip;<\/p>\n","protected":false},"author":26,"featured_media":82092,"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-80165","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 P2738 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2738 code, what causes low voltage in the pressure control solenoid circuit, and how to diagnose and fix common issues to maintain optimal transmission 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\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2738 OBD2: Pressure Control Solenoid &quot;F&quot; Control Circuit Low\" \/>\n<meta property=\"og:description\" content=\"The P2738 code is a diagnostic trouble code (DTC) that indicates a problem within the pressure control solenoid &quot;F&quot; circuit in your vehicle&#039;s transmission\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p2738-obd2-pressure-control-solenoid-f-control-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=\"2025-05-23T13:53:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-04T10:12:49+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-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\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.emanualonline.com\/blog\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\/\/www.emanualonline.com\/blog\/#\/schema\/person\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P2738 OBD2: Pressure Control Solenoid &#8220;F&#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\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-circuit-low-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/05\/p2738-obd2-pressure-control-solenoid-f-control-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 P2738 code is a diagnostic trouble code (DTC) that indicates a problem within the pressure control solenoid &#8220;F&#8221; circuit in your vehicle&#8217;s transmission system. This code is part of the OBD-II system that monitors the performance of your vehicle and helps identify issues that may affect its operation. What Does the P2738 Code Mean?&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80165","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=80165"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80165\/revisions"}],"predecessor-version":[{"id":82094,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/80165\/revisions\/82094"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/82092"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=80165"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=80165"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=80165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}