{"id":66740,"date":"2022-02-15T21:53:02","date_gmt":"2022-02-16T05:53:02","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=66740"},"modified":"2024-12-17T18:11:50","modified_gmt":"2024-12-18T02:11:50","slug":"p2185-code-engine-coolant-temperature-sensor-2-circuit-high","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p2185-code-engine-coolant-temperature-sensor-2-circuit-high\/","title":{"rendered":"P2185 Code: Engine Coolant Temperature Sensor 2 Circuit High"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column66740_1c929a-c5 > .kt-inside-inner-col,.kadence-column66740_1c929a-c5 > .kt-inside-inner-col:before{border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-right-radius:0px;border-bottom-left-radius:0px;}.kadence-column66740_1c929a-c5 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column66740_1c929a-c5 > .kt-inside-inner-col{flex-direction:column;}.kadence-column66740_1c929a-c5 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column66740_1c929a-c5 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column66740_1c929a-c5{position:relative;}@media all and (max-width: 1024px){.kadence-column66740_1c929a-c5 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column66740_1c929a-c5 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column66740_1c929a-c5 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-5172f4  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-48b80e\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading66740_c64785-8d, .wp-block-kadence-advancedheading.kt-adv-heading66740_c64785-8d[data-kb-block=\"kb-adv-heading66740_c64785-8d\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading66740_c64785-8d mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading66740_c64785-8d[data-kb-block=\"kb-adv-heading66740_c64785-8d\"] mark.kt-highlight{font-family:Inter;font-weight:500;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading66740_c64785-8d img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading66740_c64785-8d[data-kb-block=\"kb-adv-heading66740_c64785-8d\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading66740_c64785-8d summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading66740_c64785-8d\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The P2185 code stands for &ldquo;Engine Coolant Temperature Sensor 2 Circuit High.&rdquo; It&rsquo;s logged when the PCM detects electrical faults in the ECT circuit.<\/li>\n\n\n\n<li>Various issues could trigger the code, like a malfunctioning ECT sensor, a failing PCM, and a bad connection in the #2 ECT sensor.<\/li>\n\n\n\n<li>Some symptoms to be wary of include a malfunctioning air conditioner, decreased engine performance, and increased fuel consumption.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Trouble codes\">Trouble codes<\/a> help alert drivers to potential issues in their vehicles. For many, dealing with trouble codes can sound like an intimidating task. If this is your first time encountering the P2185 code on your scan tool, this brief guide can help you learn more about its definition, common causes, and symptoms.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P2185 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code (DTC) P2185 stands for &ldquo;Engine Coolant Temperature Sensor 2 Circuit High.&rdquo; This code sets when the powertrain control module (PCM) detects an electrical fault in the engine coolant temperature (ECT) circuit.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"614\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/ect-sensor-1024x614.png\" alt=\"ect sensor\" class=\"wp-image-66747\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/ect-sensor-1024x614.png 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/ect-sensor-300x180.png 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/ect-sensor-768x461.png 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/ect-sensor-150x90.png 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/ect-sensor.png 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">The P2185 code is set when the PCM detects an electrical fault in the ECT circuit.&nbsp;<\/figcaption><\/figure>\n\n\n\n<p>The ECT sensor is a thermistor that&rsquo;s responsible for measuring the temperature of the coolant going through the engine. It&rsquo;s typically located in a coolant passage in the cylinder head. This sensor&rsquo;s resistance is high when the coolant temperature is low and its resistance is low when the coolant temperature is high.<\/p>\n\n\n\n<p>The PCM monitors the voltage changes from the ECT sensor to determine the coolant&rsquo;s temperature. If the ECT reads less than the expected temperature when the engine has been running for more than a few minutes, the PCM determines a fault and sets the P2185. The PCM can also set this code if the ECT sensor&rsquo;s resistance does not match the expected values.<\/p>\n\n\n\n<div id=\"article-search-widget\">\n<div class=\"cp-search\">\n<div align=\"center\">\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/w_auto,dpr_auto\/carparts\/logos\/badge_wordmark\/full_color\/CP_LOGO_COLOUR_RGB\" alt=\"CarParts.com\" width=\"300\" height=\"56\">\n<\/div>\n<form id=\"cpsearchform\" name=\"cpsearchform\" action=\"https:\/\/www.carparts.com\/search\" method=\"get\" target=\"_blank\" accept-charset=\"character_set\" aria-label=\"search CarParts.com\">\n    <input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\"><input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form>\n<\/div>\n<\/div>\n\n\n\n<p><em><strong>Note<\/strong>: The definition of code P2185 can be different depending on the vehicle manufacturer. <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Consult the appropriate repair manual or repair database\">Consult the appropriate repair manual or repair database<\/a> for the exact code definition.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Causes of the P2185 Code?<\/h2>\n\n\n\n<p>Trouble codes like the P2185 can have multiple possible causes. Here are some of the possible issues that can trigger the P2185 code:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.carparts.com\/blog\/engine-coolant-temperature-sensor-purpose-location-and-failure-signs\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"ECT sensor malfunction\">ECT sensor malfunction<\/a><\/li>\n\n\n\n<li>PCM failure<\/li>\n\n\n\n<li>Bad connection in the #2 ECT sensor<\/li>\n\n\n\n<li>Open in the ground circuit between #2 ECT sensor and PCM<\/li>\n\n\n\n<li>Short in the voltage feed between the ECT sensor and PCM<\/li>\n\n\n\n<li>PCM failure (uncommon)<\/li>\n\n\n\n<li>Other <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wiring\">wiring<\/a> issues<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/automotive-ect-sensor-1024x683.jpg\" alt=\"hand holding an automotive ect sensor\" class=\"wp-image-66748\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/automotive-ect-sensor-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/automotive-ect-sensor-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/automotive-ect-sensor-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/automotive-ect-sensor-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/automotive-ect-sensor-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/02\/automotive-ect-sensor.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">An ECT sensor malfunction is one of the possible causes of code P2185.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P2185 Code?<\/h2>\n\n\n\n<p>When it comes to trouble codes, you might notice a number of different symptoms or none at all. here are some of the common symptoms you might spot if you&rsquo;re dealing with the OBD-II code P2185:&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Illuminated malfunction indicator lamp or <a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check engine light\">check engine light<\/a><\/li>\n\n\n\n<li>A\/C might not operate<\/li>\n\n\n\n<li>Decreased engine performance<\/li>\n\n\n\n<li>Increased fuel consumption<\/li>\n\n\n\n<li>Potential <a href=\"https:\/\/www.carparts.com\/blog\/my-car-wont-start-what-should-i-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"no start condition\">no start condition<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P2185 Code<\/h2>\n\n\n\n<p>Different DTCs can share causes and symptoms. This is why it&rsquo;s important to thoroughly diagnose the issue before making any repairs or replacing any parts.<\/p>\n\n\n\n<p>Fortunately, there are many <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"auto repair resources and guides\">auto repair resources and guides<\/a> available today. These can help you learn more about trouble codes, their definition, and how to repair them.<\/p>\n\n\n\n<p>If you want to know more about the P2185 code and how to troubleshooting and repair the issues that are triggering it, these videos can be very helpful:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"2009-2015 Honda pilot p2185 fix problem\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/yZQNds15els?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P2185 Code<\/h2>\n\n\n\n<p>Fixing DTCs is a complex process. Different codes can have similar causes, and each of these potential causes have different solutions. Vehicle manufacturers also have their own recommended repair procedures. The solution to the P2185 code in a <a href=\"https:\/\/www.carparts.com\/honda\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Honda\">Honda<\/a> can&rsquo;t fix the same code in a <a href=\"https:\/\/www.carparts.com\/volkswagen\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Volkswagen\">Volkswagen<\/a>. There&rsquo;s simply no magic bullet fixes for DTCs.<\/p>\n\n\n\n<p>It takes special tools and expertise to diagnose and fix DTCs properly. If you&rsquo;re not confident in your DTC repair skills, it&rsquo;s best to leave the job to a certified mechanic so you can avoid costly repairs down the line.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Other Notes About P2185<\/h2>\n\n\n\n<p>The P2185 is identical to the P0118. The only difference between these two codes is that the OBD-II code P2185 refers to the #2 ECT sensor circuit. This means that vehicles that have the P2185 code have two ECT sensors. When dealing with the P2185, make sure to diagnose and repair the correct sensor circuit.<\/p>\n\n\n\n<p>Plugging your OBD-II scanner into your vehicle&rsquo;s OBD-II port allows you to view DTCs that are currently registered. If you encounter the P2185 code or other related codes, it&rsquo;s highly recommended that you stop driving your vehicle and take it to a repair shop for diagnosis and repairs as soon as possible.<\/p>\n<\/body><\/html>\n","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Trouble codes help alert drivers to potential issues in their vehicles. For many, dealing with trouble codes can sound like&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p2185-code-engine-coolant-temperature-sensor-2-circuit-high\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":66746,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":true,"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[1314],"tags":[1252],"ppma_author":[2607,2855],"class_list":{"0":"post-66740","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-coolant-temperature-sensor","9":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P2185 Code: Engine Coolant Temperature Sensor 2 Circuit High - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"The P2185 code indicates a potential problem with your vehicle\u2019s engine coolant temperature sensor. 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