{"id":79830,"date":"2025-06-01T21:11:28","date_gmt":"2025-06-02T02:11:28","guid":{"rendered":"https:\/\/www.emanualonline.com\/blog\/?p=79830"},"modified":"2025-06-04T04:00:04","modified_gmt":"2025-06-04T09:00:04","slug":"p2485-obd2-exhaust-gas-temperature-sensor-circuit-open","status":"publish","type":"post","link":"https:\/\/www.emanualonline.com\/blog\/p2485-obd2-exhaust-gas-temperature-sensor-circuit-open","title":{"rendered":"P2485 OBD2: Exhaust Gas Temperature Sensor Circuit\/Open"},"content":{"rendered":"<p>The P2485 code is part of the On-Board Diagnostics II (OBD-II) system, which monitors the performance of various vehicle components. Specifically, P2485 indicates an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit. This code suggests that the engine control module (PCM) has detected an open circuit or an implausible signal from the EGT sensor.<\/p>\n<h2>What Does the P2485 Code Mean?<\/h2>\n<p>The P2485 code means that the PCM has identified a problem with the Exhaust Gas Temperature Sensor Circuit. This sensor is crucial for monitoring the temperature of the exhaust gases entering the Selective Catalytic Reduction (SCR) system. If the signal from the EGT sensor is outside the expected range, the PCM logs this fault code.<\/p>\n<h2>What Causes the P2485 Code?<\/h2>\n<p>Several factors can trigger the P2485 code, including:<\/p>\n<ul>\n<li>Exhaust Gas Temperature (EGT) sensor failure<\/li>\n<li>Powertrain Control Module (PCM) failure<\/li>\n<li>Wiring issues such as damaged or corroded connectors<\/li>\n<\/ul>\n<h2>What Are the Symptoms of the P2485 Code?<\/h2>\n<p>Symptoms associated with the P2485 code can include:<\/p>\n<ul>\n<li>Illumination of the Check Engine Light<\/li>\n<li>Decreased engine performance<\/li>\n<li>Increased emissions<\/li>\n<li>Possible failure of emissions tests<\/li>\n<\/ul>\n<h2>How Serious Is the P2485 Code?<\/h2>\n<p>The P2485 code is considered to have a moderate severity. While it may not pose an immediate threat to the vehicle&#8217;s safety or functionality, it is essential to address the issue within a reasonable timeframe to prevent further complications and maintain optimal vehicle performance.<\/p>\n<h2>How to Diagnose the P2485 Code<\/h2>\n<p>A proper diagnosis of the P2485 code involves several steps:<\/p>\n<ol>\n<li>Use an OBD-II scanner to confirm the presence of the P2485 code.<\/li>\n<li>Inspect the wiring and connectors associated with the EGT sensor for damage or corrosion.<\/li>\n<li>Test the EGT sensor with a multimeter to ensure it is functioning within specifications.<\/li>\n<li>Check the PCM for any additional fault codes that may provide more context.<\/li>\n<\/ol>\n<h2>Common Repairs for the P2485 Code<\/h2>\n<p>Repairs for the P2485 code can vary depending on the root cause of the issue. Common repairs may include:<\/p>\n<ul>\n<li>Replacing a faulty Exhaust Gas Temperature (EGT) sensor<\/li>\n<li>Repairing or replacing damaged wiring or connectors<\/li>\n<li>Reprogramming or replacing the Powertrain Control Module (PCM), if necessary<\/li>\n<\/ul>\n<h2>How Much Does It Cost to Fix the P2485 Code?<\/h2>\n<p>The cost to fix the P2485 code can vary widely based on the specific issue and labor rates in your area. On average, repairs can range from $100 to $600, depending on whether you are replacing the EGT sensor, repairing wiring, or addressing PCM issues.<\/p>\n<h2>Can I Fix the P2485 Code Myself?<\/h2>\n<p>If you have automotive repair experience and the necessary tools, you may be able to diagnose and fix the P2485 code yourself, particularly if it involves replacing the EGT sensor or repairing wiring. However, if you&#8217;re unsure about the diagnosis or repair process, it is advisable to consult with a certified mechanic to ensure the issue is resolved correctly.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The P2485 code is part of the On-Board Diagnostics II (OBD-II) system, which monitors the performance of various vehicle components. Specifically, P2485 indicates an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit. This code suggests that the engine control module (PCM) has detected an open circuit or an implausible signal from the EGT sensor. &hellip;<\/p>\n","protected":false},"author":26,"featured_media":83413,"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-79830","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 P2485 \u2013 Causes, Symptoms, and Repairs<\/title>\n<meta name=\"description\" content=\"Learn all about the P2485 code, what causes exhaust gas temperature sensor circuit\/open issues, and how to diagnose and fix common problems 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\/p2485-obd2-exhaust-gas-temperature-sensor-circuit-open\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P2485 OBD2: Exhaust Gas Temperature Sensor Circuit\/Open\" \/>\n<meta property=\"og:description\" content=\"The P2485 code is part of the On-Board Diagnostics II (OBD-II) system, which monitors the performance of various vehicle components. 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He's been a certified Master Mechanic for 15 years, working for various car dealers and specialized repair shops before turning towards blogging about cars and EVs in the hope of helping the next generation of automotive technicians. 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\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen.png",1200,675,false],"thumbnail":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen-150x150.png",150,150,true],"medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen-300x169.png",300,169,true],"medium_large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen-768x432.png",618,348,true],"large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen-1024x576.png",618,348,true],"1536x1536":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen.png",1200,675,false],"2048x2048":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen.png",1200,675,false],"tie-small":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen-110x75.png",110,75,true],"tie-medium":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen-403x215.png",403,215,true],"tie-large":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen-310x205.png",310,205,true],"slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-circuitopen-660x330.png",660,330,true],"big-slider":["https:\/\/www.emanualonline.com\/blog\/wp-content\/uploads\/2025\/06\/p2485-obd2-exhaust-gas-temperature-sensor-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 P2485 code is part of the On-Board Diagnostics II (OBD-II) system, which monitors the performance of various vehicle components. Specifically, P2485 indicates an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit. This code suggests that the engine control module (PCM) has detected an open circuit or an implausible signal from the EGT sensor.&hellip;","_links":{"self":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79830","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=79830"}],"version-history":[{"count":3,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79830\/revisions"}],"predecessor-version":[{"id":83433,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/posts\/79830\/revisions\/83433"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media\/83413"}],"wp:attachment":[{"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/media?parent=79830"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/categories?post=79830"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.emanualonline.com\/blog\/wp-json\/wp\/v2\/tags?post=79830"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}