{"id":77027,"date":"2025-09-17T11:24:05","date_gmt":"2025-09-17T16:24:05","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77027"},"modified":"2025-09-17T11:24:05","modified_gmt":"2025-09-17T16:24:05","slug":"p0748-obd2-pressure-control-solenoid-a-electrical","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p0748-obd2-pressure-control-solenoid-a-electrical","title":{"rendered":"P0748 OBD2: Pressure Control Solenoid &#8220;A&#8221; Electrical"},"content":{"rendered":"<p>The OBD-II code P0748 indicates an issue with the Pressure Control Solenoid &#8220;A&#8221; within the vehicle&#8217;s transmission system. This solenoid is crucial for controlling hydraulic pressure, which is necessary for the proper operation of the transmission.<\/p>\n<h2>What Does the P0748 Code Mean?<\/h2>\n<p>When the P0748 code is triggered, it means that the Powertrain Control Module (PCM) is not detecting the correct electrical voltage drops from the Pressure Control Solenoid. This malfunction can lead to significant issues with the vehicle&#8217;s transmission performance, impacting driving safety and efficiency.<\/p>\n<h2>What Causes the P0748 Code?<\/h2>\n<p>The most common causes of the P0748 code include:<\/p>\n<ul>\n<li>Defective Pressure Control Solenoid<\/li>\n<li>Faulty wiring or connector for the Pressure Control Solenoid<\/li>\n<li>Defective Valve Body<\/li>\n<li>Dirty transmission fluid that restricts hydraulic passages<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P0748 Code?<\/h2>\n<p>Drivers may notice several symptoms when the P0748 code is present, including:<\/p>\n<ul>\n<li>Illumination of the Check Engine Light<\/li>\n<li>Improper gear shifting<\/li>\n<li>Vehicle may become undriveable<\/li>\n<li>Decrease in fuel economy<\/li>\n<li>In some cases, there may be no noticeable symptoms<\/li>\n<\/ul>\n<h2>How Serious Is the P0748 Code?<\/h2>\n<p>The P0748 code is considered urgent. If not addressed promptly, it can lead to severe transmission issues, which may result in costly repairs and unsafe driving conditions. It is crucial to take action as soon as this code is diagnosed.<\/p>\n<h2>How to Diagnose the P0748 Code<\/h2>\n<p>Diagnosing the P0748 code involves several steps:<\/p>\n<ol>\n<li>Record freeze frame information when the code is set.<\/li>\n<li>Perform a test drive to replicate the conditions under which the code was triggered.<\/li>\n<li>Monitor the scan data for the Pressure Control Solenoid&#8217;s duty cycle.<\/li>\n<li>Conduct pinpoint tests, including voltage drops and continuity tests on the solenoid.<\/li>\n<li>Check the condition of the transmission fluid for clarity and cleanliness.<\/li>\n<\/ol>\n<h2>Common Repairs for the P0748 Code<\/h2>\n<p>Repairs may vary based on the diagnosis but can include:<\/p>\n<ul>\n<li>Replacing the defective Pressure Control Solenoid<\/li>\n<li>Repairing or replacing faulty wiring or connectors<\/li>\n<li>Cleaning or replacing the Valve Body<\/li>\n<li>Flushing or changing the transmission fluid<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P0748 Code?<\/h2>\n<p>The cost to fix the P0748 code can vary widely depending on the specific issue and the make and model of the vehicle. On average, repairs can range from $150 to $800, which includes parts and labor.<\/p>\n<h2>Can I Fix the P0748 Code Myself?<\/h2>\n<p>While some DIY enthusiasts may attempt to fix the P0748 code themselves, it is essential to have a good understanding of transmission systems and access to proper diagnostic tools. If you are not experienced in automotive repairs, it is advisable to seek professional assistance to avoid potentially further damaging the vehicle.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The OBD-II code P0748 indicates an issue with the Pressure Control Solenoid &#8220;A&#8221; within the vehicle&#8217;s transmission system. This solenoid is crucial for controlling hydraulic pressure, which is necessary for the proper operation of the transmission. What Does the P0748 Code Mean? When the P0748 code is triggered, it means that the Powertrain Control Module &hellip;<\/p>\n","protected":false},"author":26,"featured_media":96725,"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-77027","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 v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P0748 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P0748 code, what causes pressure control solenoid &quot;A&quot; electrical issues, and how to diagnose and fix common problems 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\/p0748-obd2-pressure-control-solenoid-a-electrical\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0748 OBD2: Pressure Control Solenoid &quot;A&quot; Electrical\" \/>\n<meta property=\"og:description\" content=\"The OBD-II code P0748 indicates an issue with the Pressure Control Solenoid &quot;A&quot; within the vehicle&#039;s transmission system. This solenoid is crucial for\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p0748-obd2-pressure-control-solenoid-a-electrical\" \/>\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=\"2025-09-17T16:24:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical.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\\\/p0748-obd2-pressure-control-solenoid-a-electrical#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/p0748-obd2-pressure-control-solenoid-a-electrical\"},\"author\":{\"name\":\"JC Landry\",\"@id\":\"https:\\\/\\\/www.emanualonline.com\\\/blog\\\/#\\\/schema\\\/person\\\/e803434ab3cc70008b22b56253223403\"},\"headline\":\"P0748 OBD2: Pressure Control Solenoid &#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\/09\/p0748-obd2-pressure-control-solenoid-a-electrical.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p0748-obd2-pressure-control-solenoid-a-electrical-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 P0748 indicates an issue with the Pressure Control Solenoid &#8220;A&#8221; within the vehicle&#8217;s transmission system. This solenoid is crucial for controlling hydraulic pressure, which is necessary for the proper operation of the transmission. What Does the P0748 Code Mean? When the P0748 code is triggered, it means that the Powertrain Control Module&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77027","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=77027"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77027\/revisions"}],"predecessor-version":[{"id":83726,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77027\/revisions\/83726"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/96725"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77027"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77027"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77027"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}