{"id":45979,"date":"2021-11-15T19:44:58","date_gmt":"2021-11-16T03:44:58","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=45979"},"modified":"2024-06-15T01:03:50","modified_gmt":"2024-06-15T08:03:50","slug":"p0744-code-torque-converter-clutch-circuit-intermittent","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0744-code-torque-converter-clutch-circuit-intermittent\/","title":{"rendered":"P0744 Code: Torque Converter Clutch Circuit Intermittent"},"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-column_971578-51 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_971578-51 > .kt-inside-inner-col,.kadence-column_971578-51 > .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-column_971578-51 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_971578-51 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_971578-51 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_971578-51 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_971578-51{position:relative;}@media all and (max-width: 1024px){.kadence-column_971578-51 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_971578-51 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_971578-51 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-0fdcdb  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-7b1d0e\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_183730-c9, .wp-block-kadence-advancedheading.kt-adv-heading_183730-c9[data-kb-block=\"kb-adv-heading_183730-c9\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_183730-c9 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_183730-c9[data-kb-block=\"kb-adv-heading_183730-c9\"] 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-heading_183730-c9 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_183730-c9[data-kb-block=\"kb-adv-heading_183730-c9\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_183730-c9 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_183730-c9\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>DTC P0744 stands for &ldquo;Torque Converter Clutch Circuit Intermittent,&rdquo; which indicates a problem with the torque converter.<\/li><li>Code P0744 could be caused by failing torque converters, faulty torque converter clutch solenoids, faulty wirings, or a malfunctioning TCM.<\/li><li>Common symptoms of P0744 include a lit check engine light, excessive fuel consumption, or erratic shifting.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p class=\"wp-block-paragraph\">Most vehicles with <a href=\"https:\/\/www.carparts.com\/blog\/4-car-transmission-types-how-they-work\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"automatic transmissions\">automatic transmissions<\/a> have a torque converter. It connects the engine and transmission to help transfer torque output and efficiency. This mechanism is monitored by your <a href=\"https:\/\/www.carparts.com\/transmission-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"transmission control module\">transmission control module<\/a> (TCM). If your TCM detects any problems, it may trigger various OBD codes, such as code P0744.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Don&rsquo;t worry if you see a P0744 code when you scan your vehicle. Here&rsquo;s what you need to know:<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0744 Code Mean?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Diagnostic Trouble Code (DTC) P0744 stands for &ldquo;Torque Converter Clutch Circuit Intermittent.&rdquo; It&rsquo;s one of the many codes that indicate issues with your torque converter. A P0744 code means that your TCM found a fault in your torque converter clutch or its operating circuit.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/torque-converter-of-a-car-1024x768.jpg\" alt=\"torque converter of a car\" class=\"wp-image-46002\" width=\"1024\" height=\"768\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/torque-converter-of-a-car-1024x768.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/torque-converter-of-a-car-300x225.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/torque-converter-of-a-car-768x576.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/torque-converter-of-a-car-150x113.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/torque-converter-of-a-car.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>A P0744 code means that your TCM found a fault in your torque converter clutch or its operating circuit.<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Your torque converter may be controlled by your TCM or powertrain control module (PCM) through your torque converter clutch solenoids. These components work together to regulate the hydraulic fluid in your torque converter clutch, which helps activate its coupling mechanism. If your TCM detects torque converter failure or circuit problems, it may trigger a code P0744.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">About the Torque Converter Solenoid<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Since about 1990, most vehicles engage their torque converter clutches in stages leading up to 100% lockup. That means the solenoid is designed as a &ldquo;variable force&rdquo; solenoid that provides varying amounts of pressure to the converter clutch as commanded.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On a 2015 F-150, for example, a P0744 means &ldquo;Torque Converter Solenoid Circuit Intermittent.&rdquo;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/torque-converter-solenoid-circuit-schematic-1024x714.png\" alt=\"torque converter solenoid circuit schematic\" class=\"wp-image-76158\" width=\"1024\" height=\"714\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/torque-converter-solenoid-circuit-schematic-1024x714.png 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/torque-converter-solenoid-circuit-schematic-300x209.png 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/torque-converter-solenoid-circuit-schematic-768x536.png 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/torque-converter-solenoid-circuit-schematic-150x105.png 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/torque-converter-solenoid-circuit-schematic.png 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Simplified torque converter solenoid circuit schematic | Image Source: Richard McCuistian<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">It&rsquo;s a simple matter for the ECM\/TCM to measure the continuity of any solenoid on the controlled side of that coil. On a solenoid that is hardwired to power, the ECM\/TCM looks for 12 volts at the controlled side of the solenoid whenever the solenoid isn&rsquo;t energized (grounded). On a solenoid that is hard wired to ground, that same strategy works, except that the ECM\/TCM is looking for GROUND on the controlled side of the deenergized coil rather than power.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em><strong>Note:<\/strong> The definition of code P0744 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 Possible Causes of the P0744 Code?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Here are the most common causes of a P0744 code:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/bad-torque-converter-symptoms-diagnosis-repair-faqs\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Failing torque converter\">Failing torque converter<\/a><\/li><li>Failing <a href=\"https:\/\/www.carparts.com\/torque-converter-clutch-solenoid\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"torque converter clutch solenoid\/s\">torque converter clutch solenoid\/s<\/a><\/li><li>Faulty or failing TCM<\/li><li>Wiring problems<\/li><\/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 P0744 Code?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A P0744 code may cause various symptoms. Here are the most common signs of a P0744 code:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Erratic shifting<\/li><li>Intermittently <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><li>Excessive fuel consumption<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0744 Code<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Efficiently diagnosing trouble codes may require a high level of technical skill. Most of the time, figuring out codes like P0744 may be too technical for a DIYer. If you scan your vehicle and encounter this code, the best way to tackle it is by asking a mechanic for help. However, some <a href=\"https:\/\/www.carparts.com\/blog\/best-online-resources-to-help-you-learn-how-to-fix-cars\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"online resources\">online resources<\/a> may help you get an idea of how to figure out what&rsquo;s triggering this code. If you want to learn more about code P0744, check out these videos:<\/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=\"2012 Nissan Rogue CVT P0744 Torque Converter\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/IQKonPSIvxE?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=\"2001 Maxima - ATF service with Lucas transmission fix. Trying to fix P0744 dirty fluid\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/aRZva2DyLuA?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 a Code P0744<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Fixing the issues that trigger OBD codes may be too difficult to do from home. Mechanics often need years of training and experience to resolve trouble codes. If you want to fix your vehicle right away, consult a mechanic as soon as you can.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If you&rsquo;d like to try working on an <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD code\">OBD code<\/a>, you&rsquo;ll need to do extensive research. You have to thoroughly check the underlying issues that are triggering the code. After you collect all of the necessary information, you can pinpoint the cause and consult reliable online sources for possible troubleshooting tips.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Take note that some fixes may not apply to all vehicle makes and models. What works for a code P0744 in a <a href=\"https:\/\/www.carparts.com\/torque-converter\/nissan\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Nissan\">Nissan<\/a> may not work for a <a href=\"https:\/\/www.carparts.com\/torque-converter\/mazda\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Mazda\">Mazda<\/a>. Always <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"check your owner&rsquo;s manual\">check your owner&rsquo;s manual<\/a>to make sure you know how to repair your vehicle. If it becomes too difficult for you to handle, don&rsquo;t think twice about getting a mechanic to help you out.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get a New Torque Converter for Your Vehicle<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Driving with a P0744 code due to a damaged torque converter is dangerous, as you&rsquo;ll have limited control over shifting. Dealing with shifting issues can get quite expensive as well, so why not shop for a top-notch torque converter replacement here at CarParts.com?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use your phone or laptop to visit <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a> and enter your ride&rsquo;s year, make, model, and engine into our vehicle selector to narrow down the selection to compatible torque converters.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">We want to give you the best value for your money, so we source our parts from only the most trusted manufacturers in the industry. We also offer them at competitive prices. Our warehouses are also strategically located across different states, so you can expect to receive your order in a matter of days.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Don&rsquo;t wait until you&rsquo;re dealing with frustrating transmission issues before replacing your <a href=\"https:\/\/www.carparts.com\/torque-converter\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"torque converter\">torque converter<\/a>. Shop now at CarParts.com and get your replacement in no time!<\/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>Most vehicles with automatic transmissions have a torque converter. It connects the engine and transmission to help transfer torque output&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0744-code-torque-converter-clutch-circuit-intermittent\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":46001,"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":[1215],"ppma_author":[2607,2985],"class_list":["post-45979","post","type-post","status-publish","format-standard","has-post-thumbnail","category-obd-ii-trouble-codes","tag-torque-converter","entry"],"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0744 Code: Torque Converter Clutch Circuit Intermittent - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Is your vehicle logging the code P0744? You might be having issues with your torque converter. Read on for more info.\" \/>\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\/p0744-code-torque-converter-clutch-circuit-intermittent\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0744 Code: Torque Converter Clutch Circuit Intermittent - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Is your vehicle logging the code P0744? You might be having issues with your torque converter. 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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. 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You might be having issues with your torque converter. 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