{"id":79590,"date":"2025-06-09T14:25:53","date_gmt":"2025-06-09T19:25:53","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79590"},"modified":"2025-09-15T19:20:26","modified_gmt":"2025-09-16T00:20:26","slug":"p2238-obd2-o2-sensor-positive-current-control-circuit-low","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2238-obd2-o2-sensor-positive-current-control-circuit-low","title":{"rendered":"P2238 OBD2: O2 Sensor Positive Current Control Circuit Low (Bank 1 Sensor 1)"},"content":{"rendered":"<p>OBD-II Code P2238 is defined as an O2 Sensor Positive Current Control Circuit Low. This code relates to the oxygen sensor, which plays a crucial role in measuring the oxygen content in the exhaust gases after combustion in the engine.<\/p>\n<h2>What Does the P2238 Code Mean?<\/h2>\n<p>The P2238 code indicates that the Powertrain Control Module (PCM) has detected a problem with the positive current control circuit of the oxygen sensor. This means that the information provided by the oxygen sensor is not within the expected range, potentially leading to inefficient fuel economy.<\/p>\n<h2>What Causes the P2238 Code?<\/h2>\n<p>Several factors can trigger the P2238 code, including:<\/p>\n<ul>\n<li>Exhaust leaks that affect sensor readings<\/li>\n<li>Oxygen sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues, such as damaged or corroded connections<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2238 Code?<\/h2>\n<p>Common symptoms associated with the P2238 code include:<\/p>\n<ul>\n<li>Decreased engine performance<\/li>\n<li>Increased fuel consumption<\/li>\n<\/ul>\n<h2>How Serious Is the P2238 Code?<\/h2>\n<p>The severity of the P2238 code is considered moderate. While it may not pose an immediate threat to your vehicle&#8217;s safety or functionality, it is important to have it diagnosed promptly to prevent potential damage or further issues in the engine&#8217;s performance.<\/p>\n<h2>How to Diagnose the P2238 Code<\/h2>\n<p>To properly diagnose the P2238 code, a certified technician should:<\/p>\n<ul>\n<li>Use an OBD-II scanner to confirm the code and check for additional codes.<\/li>\n<li>Inspect the oxygen sensor and its wiring for damage or corrosion.<\/li>\n<li>Check for exhaust leaks that may affect sensor readings.<\/li>\n<li>Test the oxygen sensor&#8217;s functionality and the PCM&#8217;s performance.<\/li>\n<\/ul>\n<h2>Common Repairs for the P2238 Code<\/h2>\n<p>Repairs commonly needed for the P2238 code may include:<\/p>\n<ul>\n<li>Replacing the faulty oxygen sensor<\/li>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Addressing any exhaust leaks that may be present<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2238 Code?<\/h2>\n<p>The cost to fix the P2238 code can vary widely based on the specific issue. On average, you might expect to pay between $100 and $400, depending on whether a simple wiring repair is needed or if an oxygen sensor replacement is required.<\/p>\n<h2>Can I Fix the P2238 Code Myself?<\/h2>\n<p>If you have experience with automotive repairs and access to the necessary tools, you may be able to address some issues related to the P2238 code yourself, such as replacing the oxygen sensor or inspecting wiring. However, for a comprehensive diagnosis and repair, it is often best to consult a professional mechanic.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>OBD-II Code P2238 is defined as an O2 Sensor Positive Current Control Circuit Low. This code relates to the oxygen sensor, which plays a crucial role in measuring the oxygen content in the exhaust gases after combustion in the engine. What Does the P2238 Code Mean? The P2238 code indicates that the Powertrain Control Module &hellip;<\/p>\n","protected":false},"author":26,"featured_media":88364,"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-79590","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 v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>OBD2 Code P2238 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2238 code, what causes O2 sensor positive current control circuit low, 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\/p2238-obd2-o2-sensor-positive-current-control-circuit-low\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2238 OBD2: O2 Sensor Positive Current Control Circuit Low (Bank 1 Sensor 1)\" \/>\n<meta property=\"og:description\" content=\"OBD-II Code P2238 is defined as an O2 Sensor Positive Current Control Circuit Low. This code relates to the oxygen sensor, which plays a crucial role in\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.emanualonline.com\/blog\/p2238-obd2-o2-sensor-positive-current-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:published_time\" content=\"2025-06-09T19:25:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-09-16T00:20:26+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-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\" 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He's worked across dealerships, owned and operated his own independent garage, and consulted on automotive trade school curricula, reviewing technical textbooks used in vocational programs. He now serves as Editor-in-Chief at eManualOnline.com, where he oversees the platform's technical content. He's one of the few voices in automotive publishing who has actually turned wrenches professionally on the vehicles he covers. He didn't learn automotive repair to write about it. He learned to write after spending over a decade doing it.","sameAs":["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\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-control-circuit-low-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2238-obd2-o2-sensor-positive-current-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":"OBD-II Code P2238 is defined as an O2 Sensor Positive Current Control Circuit Low. This code relates to the oxygen sensor, which plays a crucial role in measuring the oxygen content in the exhaust gases after combustion in the engine. What Does the P2238 Code Mean? The P2238 code indicates that the Powertrain Control Module&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79590","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=79590"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79590\/revisions"}],"predecessor-version":[{"id":96509,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79590\/revisions\/96509"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/88364"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79590"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79590"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79590"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}