{"id":71338,"date":"2022-09-06T00:25:24","date_gmt":"2022-09-06T07:25:24","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=71338"},"modified":"2023-09-04T18:42:39","modified_gmt":"2023-09-05T01:42:39","slug":"p0974-code-shift-solenoid-a-control-circuit-high","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0974-code-shift-solenoid-a-control-circuit-high\/","title":{"rendered":"P0974 Code: Shift Solenoid \u201cA\u201d Control 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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_3d17a9-bb > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_3d17a9-bb > .kt-inside-inner-col,.kadence-column_3d17a9-bb > .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_3d17a9-bb > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_3d17a9-bb > .kt-inside-inner-col{flex-direction:column;}.kadence-column_3d17a9-bb > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_3d17a9-bb > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_3d17a9-bb{position:relative;}@media all and (max-width: 1024px){.kadence-column_3d17a9-bb > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_3d17a9-bb > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_3d17a9-bb qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-9f0e18  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-407cc0\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_02ba94-a2, .wp-block-kadence-advancedheading.kt-adv-heading_02ba94-a2[data-kb-block=\"kb-adv-heading_02ba94-a2\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_02ba94-a2 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_02ba94-a2[data-kb-block=\"kb-adv-heading_02ba94-a2\"] 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_02ba94-a2 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_02ba94-a2[data-kb-block=\"kb-adv-heading_02ba94-a2\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_02ba94-a2 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_02ba94-a2\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The P0974 code stands for Shift Solenoid &ldquo;A&rdquo; Control Circuit High. It&rsquo;s set when the TCM detects a malfunctioning shift solenoid.<\/li><li>Low transmission fluid, a malfunctioning shift solenoid, a faulty shift solenoid, and a faulty TCM are some of the problems that could trigger the code.<\/li><li>Symptoms to look out for include an illuminated check engine light, a decrease in fuel efficiency, and improper shifting.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Are you experiencing transmission-related symptoms? Check if your vehicle has any diagnostic trouble codes by using a scan tool. If a P0974 code has been triggered, read on to learn more about its definition, common causes, and common symptoms in this article.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0974 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code (DTC) P0974 stands for Shift Solenoid &ldquo;A&rdquo; Control Circuit High. The transmission control module (TCM) may set the code when it detects a malfunctioning <a href=\"https:\/\/www.carparts.com\/automatic-transmission-solenoid\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"shift&nbsp; solenoid\">shift&nbsp; solenoid<\/a>. The TCM uses shift solenoids to direct the flow of transmission fluid to control upshifts and downshifts. Issues with the shift solenoids can result in problematic gear shifts and other transmission-related troubles.<\/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\/08\/shift-solenoid-of-a-car-1024x614.png\" alt=\"shift solenoid of a car\" class=\"wp-image-71576\" width=\"1024\" height=\"614\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/shift-solenoid-of-a-car-1024x614.png 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/shift-solenoid-of-a-car-300x180.png 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/shift-solenoid-of-a-car-768x461.png 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/shift-solenoid-of-a-car-150x90.png 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/shift-solenoid-of-a-car.png 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The TCM sets the p0974 code when it detects a malfunctioning shift solenoid.<\/figcaption><\/figure>\n\n\n\n<p><em><strong>Note: <\/strong>The definition of the P0974 code can 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 P0974 Code<\/h2>\n\n\n\n<p>The P0974 code can be caused by several issues. Here are some of the most common:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/how-to-check-automatic-transmission-fluid\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Low transmission fluid\">Low transmission fluid<\/a><\/li><li>Faulty shift solenoid<\/li><li>Faulty TCM<\/li><li>Faulty <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wiring\">wiring<\/a><\/li><li><a href=\"https:\/\/www.carparts.com\/valve-body\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Valve body\">Valve body<\/a> problems<\/li><li>An internal transmission failure<\/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 P0974 Code<\/h2>\n\n\n\n<p>Your vehicle might exhibit the following symptoms if the P0974 code has been stored:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><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><li>Decreased fuel efficiency<\/li><li>The transmission is not shifting properly<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0974 Code<\/h2>\n\n\n\n<p>A lot of DTCs share the same symptoms and causes, which is why you still need to find the actual cause of your DTC before you conduct any repairs. Skipping a proper diagnosis can prevent you from properly fixing the issue.<\/p>\n\n\n\n<p>The diagnostic process may require specialized tools and thorough knowledge about vehicles. It&nbsp; may be best to leave the task to a professional mechanic.<\/p>\n\n\n\n<p>If you&rsquo;re interested to learn how to diagnose the problem on your own, then you should check out the video below:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Transmission Shift Solenoid\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/24gkmDDV0C8?start=5&amp;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 P0974 Code<\/h2>\n\n\n\n<p>Unfortunately, there isn&rsquo;t a single cure-all solution that can resolve the problems that trigger this <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD-II code\">OBD-II code<\/a> for any vehicle. OBD-II code repair steps may vary from case to case because they will depend on the faulty component and the vehicle model. Once the problem has been accurately identified, then you can consult <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=\"credible auto repair resources and how-to guides\">credible auto repair resources and how-to guides<\/a> for possible solutions.<\/p>\n\n\n\n<p>Chilton repair manuals are a pretty good resource, but an ALLDATA single-vehicle subscription will likely be more helpful because of its detailed factory repair information.<\/p>\n\n\n\n<p>&nbsp;If you aren&rsquo;t confident about your automotive repair skills, it&rsquo;s always best to consult a mechanic.<\/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\"> 2<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Are you experiencing transmission-related symptoms? Check if your vehicle has any diagnostic trouble codes by using a scan tool. If&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0974-code-shift-solenoid-a-control-circuit-high\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":71577,"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":[1221],"ppma_author":[2607,2855],"class_list":{"0":"post-71338","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-automatic-transmission-solenoid","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>P0974 Code: Shift Solenoid \u201cA\u201d Control Circuit High - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Have you encountered the P0974 code? 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