{"id":46247,"date":"2022-09-16T04:23:00","date_gmt":"2022-09-16T11:23:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=46247"},"modified":"2024-08-19T23:41:12","modified_gmt":"2024-08-20T06:41:12","slug":"p0597-code-thermostat-heater-control-circuit-open","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/","title":{"rendered":"P0597 Code: Thermostat Heater Control Circuit \/ Open"},"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-column46247_b8c292-d4 > .kt-inside-inner-col,.kadence-column46247_b8c292-d4 > .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-column46247_b8c292-d4 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column46247_b8c292-d4 > .kt-inside-inner-col{flex-direction:column;}.kadence-column46247_b8c292-d4 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column46247_b8c292-d4 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column46247_b8c292-d4{position:relative;}@media all and (max-width: 1024px){.kadence-column46247_b8c292-d4 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column46247_b8c292-d4 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column46247_b8c292-d4 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-b0fa3c  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-86d243\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading46247_b5fcee-c2, .wp-block-kadence-advancedheading.kt-adv-heading46247_b5fcee-c2[data-kb-block=\"kb-adv-heading46247_b5fcee-c2\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading46247_b5fcee-c2 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading46247_b5fcee-c2[data-kb-block=\"kb-adv-heading46247_b5fcee-c2\"] 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-heading46247_b5fcee-c2 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading46247_b5fcee-c2[data-kb-block=\"kb-adv-heading46247_b5fcee-c2\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading46247_b5fcee-c2 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading46247_b5fcee-c2\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Diagnostic trouble code (DTC) P0597 code stands for &ldquo;Thermostat Heater Control Circuit\/Open.&rdquo;<\/li>\n\n\n\n<li>The PCM will log this code once it detects that the thermostat signal gives out incorrect voltage readings for a specific amount of time. The P0597, in particular, warns that the electronic valve&rsquo;s control voltage is zero.<\/li>\n\n\n\n<li>Some of the possible causes of a P0597 code include a bad thermostat, wiring issues, and PCM problems.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The <a href=\"https:\/\/www.carparts.com\/thermometer\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"thermostat\">thermostat<\/a> is the valve that helps regulate the engine&rsquo;s temperature. It ensures the engine gets hot enough to do its job without running the risk of <a href=\"https:\/\/www.carparts.com\/blog\/car-overheats-when-the-ac-is-on-causes-and-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"overheating\">overheating<\/a> by controlling the flow of coolant fluid to the radiator for waste heat disposal.<\/p>\n\n\n\n<p>While older engines use mechanical means to adjust their thermostats, newer designs use electronic thermostats directed by the powertrain control module (PCM) for greater efficiency.<\/p>\n\n\n\n<p>If the computer receives an erroneous signal from the thermostat that indicates zero control voltage, its onboard diagnostics will set a P0597 code.<\/p>\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\/2021\/11\/Mechanic-holds-a-car-thermostat-close-look-1024x683.jpg\" alt=\"Mechanic holds a car thermostat close look\" class=\"wp-image-46248\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/Mechanic-holds-a-car-thermostat-close-look-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/Mechanic-holds-a-car-thermostat-close-look-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/Mechanic-holds-a-car-thermostat-close-look-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/Mechanic-holds-a-car-thermostat-close-look-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/Mechanic-holds-a-car-thermostat-close-look-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/Mechanic-holds-a-car-thermostat-close-look.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\"> The thermostat is the valve that helps regulate the engine&rsquo;s temperature. <\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0597 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) P0597 code stands for &ldquo;Thermostat Heater Control Circuit\/Open.&rdquo;<\/p>\n\n\n\n<p>An electronic thermostat consists of a control housing that contains the valve itself and sensors that constantly measure the engine temperature. The sensors deliver their readings to the PCM, which adjusts the thermostat&rsquo;s position accordingly. The computer also keeps track of the valve&rsquo;s feedback voltage to determine if the electronic circuit is open, shorted to ground, or shorted to a voltage source.<\/p>\n\n\n\n<p>When the thermostat&rsquo;s signal does not show the correct voltage for a specific amount of time, the PCM will log a thermostat heater control circuit code. Among these codes, the P0597 code warns that the electronic valve&rsquo;s control voltage is zero.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"1024\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/2020-toyota-corolla-thermostat-576x1024.png\" alt=\"2020 toyota corolla thermostat\" class=\"wp-image-74020\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/2020-toyota-corolla-thermostat-576x1024.png 576w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/2020-toyota-corolla-thermostat-169x300.png 169w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/2020-toyota-corolla-thermostat-768x1365.png 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/2020-toyota-corolla-thermostat-150x267.png 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/2020-toyota-corolla-thermostat.png 844w\" sizes=\"(max-width: 576px) 100vw, 576px\"><figcaption class=\"wp-element-caption\">This is an electric thermostat from a 2020 Toyota Corolla, which is integral with the thermostat housing and has a wire connector for the heating element within the thermostat&rsquo;s wax element. Even if the electric part of the thermostat fails, the wax element will work to open and close the thermostat at a set temperature. But as long as the healing element is working in an electric thermostat, the PCM can control when the thermostat opens and, to an extent, when it closes. | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">P0597 on Some Chevrolet Vehicles<\/h3>\n\n\n\n<p>Code P0597 may appear on some <a href=\"https:\/\/www.carparts.com\/chevrolet\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Chevrolet\">Chevrolet<\/a> vehicles like the <a href=\"https:\/\/www.carparts.com\/vehicle\/2012\/Chevrolet\/Cruze\/LS\/4_Cyl_1-dot-8L\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"2012 Chevrolet Cruze LS 1.8L, L4\">2012 Chevrolet Cruze LS 1.8L, L4<\/a>.<\/p>\n\n\n\n<p>Conditions for running DTC P0597 in a 2012 Chevy Cruze LS can include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The ignition is ON, or the engine is running.<\/li>\n\n\n\n<li>The ignition voltage is greater than 9 V.<\/li>\n\n\n\n<li>DTC P0597 00 runs continuously once the above conditions are met.<\/li>\n<\/ul>\n\n\n\n<p>The DTC is set when the ECM detects that the commanded state of the driver and the actual state of the control circuit do not match for greater than 15 seconds.<\/p>\n\n\n\n<p><em><strong>Note:<\/strong> The definition of code P0597 may vary depending on the vehicle manufacturer. Consult the right repair manual or repair database for the exact code definition.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P0597 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Faulty <a href=\"https:\/\/www.carparts.com\/blog\/what-are-the-common-signs-of-a-bad-thermostat\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"thermostat\">thermostat<\/a><\/li>\n\n\n\n<li>Problems with the thermostat wiring<\/li>\n\n\n\n<li>Faulty <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control module\">powertrain control module<\/a> (PCM)<\/li>\n<\/ul>\n\n\n\n<div class=\"cp-search\">\n<div align=\"center\"><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\"><\/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\t<input type=\"text\" class=\"keyword\" name=\"q\" placeholder=\"Search for parts on CarParts.com\" value=\"\" aria-label=\"Search CarParts.com\">\n        <input type=\"submit\" class=\"btn-search\" value=\"Search\" aria-label=\"Search\">\n<\/form><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0597 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The <a href=\"https:\/\/www.carparts.com\/radiator\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"radiator\">radiator<\/a>&lsquo;s cooling fans may continue to run even when they&rsquo;re not needed<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Check engine light illuminates\">Check engine light illuminates<\/a><\/li>\n\n\n\n<li>Engine <a href=\"https:\/\/www.carparts.com\/temperature-gauge\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"temperature gauge\">temperature gauge<\/a> shows abnormally high or low readings because the thermostat failed in a partly open or close position<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0597 Code<\/h2>\n\n\n\n<p>A DTC P0123 is a generic powertrain trouble code that may be set in vehicles with an electronic engine thermostat. While these vehicles may show similar triggers and symptoms, the steps for diagnosis and repair may vary between different makes and models.<\/p>\n\n\n\n<p>If you lack experience or knowledge on how to run diagnostic tests on your vehicle, you should consider bringing it to a professional mechanic. Otherwise, you may go ahead and diagnose the issue yourself. To help you get started, here are some videos that may give you an idea of what the process might involve:<\/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=\"How to test an electronic thermostat (GM design) part 1\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/6m6nJ1Xv8PU?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<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=\"Chevy Cruze: Thermostat Heater Codes \/ TPMS Light On\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/QoK6d7170AE?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<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0597 Code<\/h2>\n\n\n\n<p>Attempting to fix a P0597 code may become a frustrating task if you don&rsquo;t have the right tools and know-how to test the thermostat. In most cases, it&rsquo;s best to leave the job to professionals.<\/p>\n\n\n\n<p>If you&rsquo;re a DIYer with advanced technical knowledge and hands-on experience, you may test and replace your vehicle&rsquo;s electronic thermostat on your own. <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Consult repair manuals\">Consult repair manuals<\/a> for reference. Rely on guides that provide vehicle-specific information to avoid mistakes that can escalate the problem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get a New Thermostat to Fix DTC P0597<\/h2>\n\n\n\n<p>DTC P0597 is typically logged when the thermostat malfunctions. It&rsquo;s not a good idea to hold off on replacing it because it can make driving a hassle. For a top-notch <a href=\"https:\/\/www.carparts.com\/thermostat\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"replacement thermostat\">replacement thermostat<\/a> that&rsquo;ll give you the best value for your money, shop 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 makes it easy for car owners like you to find the right parts for your ride. Use our vehicle selector to start shopping, and funnel the catalog results according to your preferred brand, price, and specs using the search filters. On top of that, all our thermostats come with a low-price and lifetime replacement guarantee.<\/p>\n\n\n\n<p>We make sure to get our auto parts from the most trusted manufacturers in the industry. All our parts pass the highest quality control standards from industry professionals, so you won&rsquo;t have to worry about any replacements you order failing you any time soon.<\/p>\n\n\n\n<p>Don&rsquo;t leave DTC P0597 unaddressed. Shop for a new thermostat 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>The thermostat is the valve that helps regulate the engine&rsquo;s temperature. It ensures the engine gets hot enough to do&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":46249,"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":[332],"ppma_author":[2607,2985],"class_list":{"0":"post-46247","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-thermostat","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>P0597 Code: Thermostat Heater Control Circuit \/ Open - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn what the P0597 code means and its possible causes. Plus find out the usual symptoms associated with this code.\" \/>\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\/p0597-code-thermostat-heater-control-circuit-open\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0597 Code: Thermostat Heater Control Circuit \/ Open - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Learn what the P0597 code means and its possible causes. Plus find out the usual symptoms associated with this code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/\" \/>\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=\"2022-09-16T11:23:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-08-20T06:41:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/man-with-a-car-thermostat-replacement-part-close-look.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\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=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"Richard McCuistian\",\"jobTitle\":\"ASE Master Automobile Technician\",\"description\":\"Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/richardmccuistian\\\/\",\"sameAs\":\"https:\\\/\\\/www.linkedin.com\\\/in\\\/richard-mccuistian-2681891b\\\/, https:\\\/\\\/www.youtube.com\\\/user\\\/McCuistian\"}],\"headline\":\"P0597 Code: Thermostat Heater Control Circuit \\\/ Open\",\"datePublished\":\"2022-09-16T11:23:00+00:00\",\"dateModified\":\"2024-08-20T06:41:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/\"},\"wordCount\":958,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/11\\\/man-with-a-car-thermostat-replacement-part-close-look.jpg\",\"keywords\":[\"thermostat\"],\"articleSection\":[\"OBD-II Trouble Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/\",\"name\":\"P0597 Code: Thermostat Heater Control Circuit \\\/ Open - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/11\\\/man-with-a-car-thermostat-replacement-part-close-look.jpg\",\"datePublished\":\"2022-09-16T11:23:00+00:00\",\"dateModified\":\"2024-08-20T06:41:12+00:00\",\"description\":\"Learn what the P0597 code means and its possible causes. Plus find out the usual symptoms associated with this code.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/11\\\/man-with-a-car-thermostat-replacement-part-close-look.jpg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2021\\\/11\\\/man-with-a-car-thermostat-replacement-part-close-look.jpg\",\"width\":1500,\"height\":1000,\"caption\":\"man with a car thermostat replacement part close look\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0597-code-thermostat-heater-control-circuit-open\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"P0597 Code: Thermostat Heater Control Circuit \/ Open - In The Garage with CarParts.com","description":"Learn what the P0597 code means and its possible causes. Plus find out the usual symptoms associated with this code.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/","og_locale":"en_US","og_type":"article","og_title":"P0597 Code: Thermostat Heater Control Circuit \/ Open - In The Garage with CarParts.com","og_description":"Learn what the P0597 code means and its possible causes. Plus find out the usual symptoms associated with this code.","og_url":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2022-09-16T11:23:00+00:00","article_modified_time":"2024-08-20T06:41:12+00:00","og_image":[{"width":1500,"height":1000,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/man-with-a-car-thermostat-replacement-part-close-look.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/"},"author":[{"@type":"Person","$id":"4","name":"CarParts.com Research Team","jobTitle":"Expert Automotive Writer","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","sameAs":"https:\/\/www.facebook.com\/carpartscom, https:\/\/twitter.com\/CarPartscom, https:\/\/www.youtube.com\/@CarPartscomOfficial\/, https:\/\/www.instagram.com\/carpartscom\/"},{"@type":"Person","$id":"4","name":"Richard McCuistian","jobTitle":"ASE Master Automobile Technician","description":"Richard McCuistian has worked for nearly 50 years in the automotive field as a professional technician, an instructor, and a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/","sameAs":"https:\/\/www.linkedin.com\/in\/richard-mccuistian-2681891b\/, https:\/\/www.youtube.com\/user\/McCuistian"}],"headline":"P0597 Code: Thermostat Heater Control Circuit \/ Open","datePublished":"2022-09-16T11:23:00+00:00","dateModified":"2024-08-20T06:41:12+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/"},"wordCount":958,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/man-with-a-car-thermostat-replacement-part-close-look.jpg","keywords":["thermostat"],"articleSection":["OBD-II Trouble Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/","url":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/","name":"P0597 Code: Thermostat Heater Control Circuit \/ Open - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/#primaryimage"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/man-with-a-car-thermostat-replacement-part-close-look.jpg","datePublished":"2022-09-16T11:23:00+00:00","dateModified":"2024-08-20T06:41:12+00:00","description":"Learn what the P0597 code means and its possible causes. Plus find out the usual symptoms associated with this code.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/man-with-a-car-thermostat-replacement-part-close-look.jpg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/man-with-a-car-thermostat-replacement-part-close-look.jpg","width":1500,"height":1000,"caption":"man with a car thermostat replacement part close look"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/man-with-a-car-thermostat-replacement-part-close-look.jpg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/man-with-a-car-thermostat-replacement-part-close-look.jpg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/p0597-code-thermostat-heater-control-circuit-open\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""},{"term_id":2985,"user_id":1646,"is_guest":0,"slug":"richardmccuistian","display_name":"Richard McCuistian, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/richard-mccuistian.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/richard-mccuistian.png"},"0":null,"1":"","2":"","3":"","4":"","5":"","6":"","7":"","8":""}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/46247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=46247"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/46247\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/46249"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=46247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=46247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=46247"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=46247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}