{"id":77403,"date":"2025-09-04T13:12:30","date_gmt":"2025-09-04T18:12:30","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=77403"},"modified":"2025-09-04T13:12:30","modified_gmt":"2025-09-04T18:12:30","slug":"p023c-obd2-charge-air-cooler-coolant-pump-control-circuit-high","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p023c-obd2-charge-air-cooler-coolant-pump-control-circuit-high","title":{"rendered":"P023C OBD2: Charge Air Cooler Coolant Pump Control Circuit High"},"content":{"rendered":"<p>The P023C OBD-II code indicates a problem with the charge air cooler coolant pump control circuit, specifically a high signal reading. This code is associated with the vehicle&#8217;s supercharger and its integrated intercooler system.<\/p>\n<h2>What Does the P023C Code Mean?<\/h2>\n<p>The P023C code is triggered when the engine control module (ECM) detects a fault in the charge air cooler coolant pump control circuit. This circuit is responsible for regulating the coolant pump that cools the air entering the engine, ensuring optimal performance and efficiency.<\/p>\n<h2>What Causes the P023C Code?<\/h2>\n<p>Several factors can trigger the P023C code:<\/p>\n<ul>\n<li>Failure of the charge air cooler coolant pump<\/li>\n<li>Faulty charge air cooler coolant pump relay<\/li>\n<li>Wiring issues within the control circuit<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P023C Code?<\/h2>\n<p>Common symptoms associated with the P023C code include:<\/p>\n<ul>\n<li>Check Engine Light illuminated<\/li>\n<li>Reduced engine performance<\/li>\n<li>Increased engine temperatures<\/li>\n<\/ul>\n<h2>How Serious Is the P023C Code?<\/h2>\n<p>The severity of the P023C code is considered moderate. While it may not pose an immediate threat to the vehicle&#8217;s safety or functionality, it is crucial to address the issue promptly to prevent further complications and ensure the vehicle continues to operate efficiently.<\/p>\n<h2>How to Diagnose the P023C Code<\/h2>\n<p>To diagnose the P023C code, a mechanic will typically take the following steps:<\/p>\n<ul>\n<li>Use an OBD-II scanner to confirm the code and check for any additional codes<\/li>\n<li>Inspect the coolant pump and its wiring for any visible damage or issues<\/li>\n<li>Test the charge air cooler coolant pump and relay for proper operation<\/li>\n<li>Check the vehicle\u2019s electrical system for any faults<\/li>\n<\/ul>\n<h2>Common Repairs for the P023C Code<\/h2>\n<p>Repairs for the P023C code may include:<\/p>\n<ul>\n<li>Replacing the charge air cooler coolant pump<\/li>\n<li>Replacing the charge air cooler coolant pump relay<\/li>\n<li>Repairing or replacing damaged wiring in the control circuit<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P023C Code?<\/h2>\n<p>The cost to repair the P023C code can vary based on the specific issue and the make and model of the vehicle. On average, repairs can range from $100 to $600, including parts and labor.<\/p>\n<h2>Can I Fix the P023C Code Myself?<\/h2>\n<p>If you have experience with automotive repairs and access to the necessary tools, you may be able to diagnose and fix the P023C code yourself. However, for those unfamiliar with vehicle systems, it is advisable to consult a professional mechanic to ensure proper diagnosis and repair.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P023C OBD-II code indicates a problem with the charge air cooler coolant pump control circuit, specifically a high signal reading. This code is associated with the vehicle&#8217;s supercharger and its integrated intercooler system. What Does the P023C Code Mean? The P023C code is triggered when the engine control module (ECM) detects a fault in &hellip;<\/p>\n","protected":false},"author":26,"featured_media":95516,"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-77403","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 P023C \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P023C code, what causes charge air cooler coolant pump control circuit high, and how to diagnose and fix common issues to maintain optimal engine 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\/p023c-obd2-charge-air-cooler-coolant-pump-control-circuit-high\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P023C OBD2: Charge Air Cooler Coolant Pump Control Circuit High\" \/>\n<meta property=\"og:description\" content=\"The P023C OBD-II code indicates a problem with the charge air cooler coolant pump control circuit, specifically a high signal reading. This code is\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p023c-obd2-charge-air-cooler-coolant-pump-control-circuit-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=\"2025-09-04T18:12:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/09\/p023c-obd2-charge-air-cooler-coolant-pump-control-circuit-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 name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta 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This code is associated with the vehicle&#8217;s supercharger and its integrated intercooler system. What Does the P023C Code Mean? The P023C code is triggered when the engine control module (ECM) detects a fault in&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77403","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=77403"}],"version-history":[{"count":1,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77403\/revisions"}],"predecessor-version":[{"id":84102,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/77403\/revisions\/84102"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/95516"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=77403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=77403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=77403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}