{"id":64826,"date":"2022-01-19T20:02:45","date_gmt":"2022-01-20T04:02:45","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=64826"},"modified":"2024-12-19T05:12:22","modified_gmt":"2024-12-19T13:12:22","slug":"p0526-code-cooling-fan-speed-sensor-circuit","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0526-code-cooling-fan-speed-sensor-circuit\/","title":{"rendered":"P0526 Code: Cooling Fan Speed Sensor Circuit"},"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\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column64826_ddfa5b-b9 > .kt-inside-inner-col,.kadence-column64826_ddfa5b-b9 > .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-column64826_ddfa5b-b9 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column64826_ddfa5b-b9 > .kt-inside-inner-col{flex-direction:column;}.kadence-column64826_ddfa5b-b9 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column64826_ddfa5b-b9 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column64826_ddfa5b-b9{position:relative;}@media all and (max-width: 1024px){.kadence-column64826_ddfa5b-b9 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column64826_ddfa5b-b9 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column64826_ddfa5b-b9 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-dffad8  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-2ac946\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading64826_b62d9c-22, .wp-block-kadence-advancedheading.kt-adv-heading64826_b62d9c-22[data-kb-block=\"kb-adv-heading64826_b62d9c-22\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading64826_b62d9c-22 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading64826_b62d9c-22[data-kb-block=\"kb-adv-heading64826_b62d9c-22\"] 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-heading64826_b62d9c-22 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading64826_b62d9c-22[data-kb-block=\"kb-adv-heading64826_b62d9c-22\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading64826_b62d9c-22 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading64826_b62d9c-22\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The P0526 code stands for &ldquo;Cooling Fan Speed Sensor Circuit,&rdquo; which means the powertrain control module (PCM) has detected a fault within the cooling fan speed sensor or wiring.<\/li>\n\n\n\n<li>Some of the common causes of the P0526 code include a malfunctioning fan clutch or electric fan, connection or circuit issues, and a bad cooling fan speed sensor.<\/li>\n\n\n\n<li>An illuminated check engine light and an overheating engine are common symptoms of the P0526 code.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>A vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/cooling-fan-assembly\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"cooling fan\">cooling fan<\/a> prevents overheating, which can damage the engine and other essential components in the long run. Some vehicles are equipped with a sensor that detects the cooling fan&rsquo;s movement while it is running. When your vehicle&rsquo;s powertrain control module (PCM) detects a fault with the sensor or its circuit, it can trigger the P0526 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0526 Code Mean?<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Diagnostic trouble code\">Diagnostic trouble code<\/a> (DTC) P0526 stands for &ldquo;Cooling Fan Speed Sensor Circuit.&rdquo;<\/p>\n\n\n\n<p>A vehicle&rsquo;s cooling fan speed sensor monitors the cooling fan&rsquo;s condition during operation. It monitors if the fan speed recommended by the PCM matches the actual movement of the fan.<\/p>\n\n\n\n<p>The device used to detect fan speed is usually a 3-wire hall effect sensor. It makes use of a 5-volt reference coming from the PCM, a ground wire, and a signal wire to determine fan speed.<\/p>\n\n\n\n<p>Once the PCM detects a fault within the sensor or the wiring, it will trigger the P0526 code.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/feedback-sensor-p0526-1024x768.jpg\" alt=\"feedback sensor p0526\" class=\"wp-image-80517\" style=\"width:1024px;height:768px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/feedback-sensor-p0526-1024x768.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/feedback-sensor-p0526-300x225.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/feedback-sensor-p0526-768x576.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/feedback-sensor-p0526-1536x1152.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/feedback-sensor-p0526-150x113.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/feedback-sensor-p0526.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">This is a feedback sensor the ECM\/PCM uses to monitor and control fan speed. | Image Source: Richard McCuistian.<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Note on Fan Clutches<\/h3>\n\n\n\n<p>Many vehicles still have viscous fan clutches that enable the fan to spin much slower than the driving pulley. Except that since the early 2000s, these viscous clutches are controlled by the ECM\/PCM rather than with the old-fashioned integral bi-metal spring and valve affair used on older viscous fan systems. This kind of control enables the ECM\/PCM to precisely control the speed of the cooling fan in a variable fashion rather than simply having one or two speeds.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>Many vehicles still have viscous fan clutches that enable the fan to spin much slower than the driving pulley.<\/p>\n<cite><em>&ndash;&nbsp;<\/em><a href=\"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Richard McCuistian, ASE Certified Master Automobile Technician\">Richard McCuistian, ASE Certified Master Automobile Technician<\/a><\/cite><\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"575\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/examples-of-fan-hubs-1024x575.jpg\" alt=\"examples of fan hubs\" class=\"wp-image-80516\" style=\"width:1024px;height:575px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/examples-of-fan-hubs-1024x575.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/examples-of-fan-hubs-300x168.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/examples-of-fan-hubs-768x431.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/examples-of-fan-hubs-150x84.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2023\/01\/examples-of-fan-hubs.jpg 1499w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">Examples of fan hubs | Image Source: Richard McCuistian.<\/figcaption><\/figure>\n\n\n\n<p><em><strong>Note:<\/strong> The definition of code P0526 may be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Are the Common Causes of the P0526 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Malfunctioning <a href=\"https:\/\/www.carparts.com\/fan-clutch\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fan clutch\">fan clutch<\/a> or <a href=\"https:\/\/www.carparts.com\/electric-fan\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"electric fan\">electric fan<\/a><\/li>\n\n\n\n<li>Connection or circuit issues<\/li>\n\n\n\n<li>Bad cooling fan speed sensor<\/li>\n\n\n\n<li>Broken <a href=\"https:\/\/www.carparts.com\/serpentine-belt\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"accessory belt\">accessory belt<\/a><\/li>\n\n\n\n<li>Faulty <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM\">PCM<\/a><\/li>\n<\/ul>\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<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0526 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.carparts.com\/blog\/car-overheats-when-the-ac-is-on-causes-and-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Engine overheating\">Engine overheating<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Illuminated check engine light\">Illuminated check engine light<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0526 Code<\/h2>\n\n\n\n<p>The P0222 code is a generic powertrain code that can be seen across various vehicles. Although symptoms and causes may be similar, the exact steps to diagnose and fix the issue may vary between vehicles.<\/p>\n\n\n\n<p>If you&rsquo;re not an experienced DIYer, it&rsquo;s recommended to bring your vehicle to a professional for an accurate diagnosis. Otherwise, you may go ahead and diagnose the issue yourself.<\/p>\n\n\n\n<p>Learn more about what the proper diagnostic procedure might involve by watching this video:<\/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=\"2005 Chevy Trailblazer. P0128 P0480 P0526.\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Vtt3IJkG7Ac?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 P0526 Code<\/h2>\n\n\n\n<p>Attempting to fix a P0526 code isn&rsquo;t easy without the right tools and knowledge about cooling fan speed sensor circuits. If you don&rsquo;t have the time or skills yet to do this on your own, it&rsquo;s best to leave the job to a mechanic.<\/p>\n\n\n\n<p>However, if you prefer to clear this code yourself, it will be helpful to refer to the appropriate <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manual or an online repair database\">repair manual or an online repair database<\/a> for vehicle-specific information that can work for your make and model.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get Replacement Parts to Resolve Trouble Code P0526<\/h2>\n\n\n\n<p>The potential causes of a P0526 trouble code can be traced to a variety of damaged parts, including a <a href=\"https:\/\/www.carparts.com\/fan-clutch\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fan clutch\">fan clutch<\/a> and <a href=\"https:\/\/www.carparts.com\/serpentine-belt\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"serpentine belt\">serpentine belt<\/a>. The great news is that you can replace them in a jiffy when you shop right here at <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a>.<\/p>\n\n\n\n<p>Our website has everything you need to get your vehicle back into shape. Simply enter your car, truck, or SUV&rsquo;s specifications into our vehicle selector to start browsing for compatible products for your ride. You can also use the search filters to find parts according to your preferred brand, price range, quantity, and more.<\/p>\n\n\n\n<p>Enjoy the best deals when you shop from us. All our products come with a low-price and lifetime replacement guarantee, helping you get the best value for your money. Order now, and we&rsquo;ll deliver the parts you need straight to your doorstep in as fast as two business days.<\/p>\n\n\n\n<p>Can&rsquo;t shop online? Don&rsquo;t worry! Call us anytime using our toll-free hotline, and our team of round-the-clock customer service professionals will be ready to assist you. Don&rsquo;t miss out on the best deals on the market, and shop for quality car parts today!<\/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\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>A vehicle&rsquo;s cooling fan prevents overheating, which can damage the engine and other essential components in the long run. Some&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0526-code-cooling-fan-speed-sensor-circuit\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":64886,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_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":[1491,1063,3174,1246,1164],"ppma_author":[2607,2985],"class_list":{"0":"post-64826","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-accessory-drive-belt","9":"tag-cooling-fan-assembly","10":"tag-electric-fan","11":"tag-fan-clutch","12":"tag-serpentine-belt-2","13":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0526 Code: Cooling Fan Speed Sensor Circuit - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what the P0526 code means, its most common causes and symptoms. Learn what to do if you get this code on your scanner. Read on.\" \/>\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.carparts.com\/blog\/p0526-code-cooling-fan-speed-sensor-circuit\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0526 Code: Cooling Fan Speed Sensor Circuit - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what the P0526 code means, its most common causes and symptoms. Learn what to do if you get this code on your scanner. Read on.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0526-code-cooling-fan-speed-sensor-circuit\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-01-20T04:02:45+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-12-19T13:12:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/01\/male-mechanic-performing-hood-inspection-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2048\" \/>\n\t<meta property=\"og:image:height\" content=\"1365\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0526-code-cooling-fan-speed-sensor-circuit\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0526-code-cooling-fan-speed-sensor-circuit\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. 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