{"id":74852,"date":"2022-10-09T19:02:54","date_gmt":"2022-10-10T02:02:54","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=74852"},"modified":"2023-09-29T01:47:22","modified_gmt":"2023-09-29T08:47:22","slug":"p0989-code-transmission-fluid-pressure-sensor-switch-e-circuit-low","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0989-code-transmission-fluid-pressure-sensor-switch-e-circuit-low\/","title":{"rendered":"P0989 Code: Transmission Fluid Pressure Sensor\/Switch \u201cE\u201d Circuit Low"},"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-column_e6f00f-80 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_e6f00f-80 > .kt-inside-inner-col,.kadence-column_e6f00f-80 > .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_e6f00f-80 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_e6f00f-80 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_e6f00f-80 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_e6f00f-80 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_e6f00f-80{position:relative;}@media all and (max-width: 1024px){.kadence-column_e6f00f-80 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_e6f00f-80 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_e6f00f-80 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-873050  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-2d3061\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_64a237-16, .wp-block-kadence-advancedheading.kt-adv-heading_64a237-16[data-kb-block=\"kb-adv-heading_64a237-16\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_64a237-16 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_64a237-16[data-kb-block=\"kb-adv-heading_64a237-16\"] 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_64a237-16 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_64a237-16[data-kb-block=\"kb-adv-heading_64a237-16\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_64a237-16 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_64a237-16\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The P0989 code stands for &ldquo;Transmission Fluid Pressure Sensor\/Switch E Circuit,&rdquo; which means the powertrain control module found a discrepancy in the transmission fluid pressure sensor&rsquo;s readings.<\/li><li>The common causes of the P0989 code include low transmission fluid level, a bad transmission fluid pressure sensor, and corroded or loose wires and connectors.<\/li><li>An illuminated check engine light, higher fuel consumption, and an improperly shifting transmission are some symptoms of the P0989 code.<\/li><\/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\/auto-trans-oil-pressure-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"transmission fluid pressure (TFP) sensor\">transmission fluid pressure (TFP) sensor<\/a>\/<a href=\"https:\/\/www.carparts.com\/automatic-transmission-oil-pressure-switch\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"switch\">switch<\/a> plays a critical part in ensuring smooth shifting while driving. The <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM\">PCM<\/a> or <a href=\"https:\/\/www.carparts.com\/transmission-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"TCM\">TCM<\/a> will log a P0989 code if it detects a problem with the transmission fluid pressure sensor\/switch (in the E position) or its circuit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0989 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) P0989 stands for &ldquo;Transmission Fluid Pressure Sensor\/Switch E Circuit.&rdquo;<\/p>\n\n\n\n<p>The transmission fluid pressure sensor is usually located on the side of the transmission&rsquo;s <a href=\"https:\/\/www.carparts.com\/valve-body\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"valve body\">valve body<\/a>. Some sensor models are fastened to the side of the <a href=\"https:\/\/www.carparts.com\/transmission-case\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"transmission case\">transmission case<\/a>.<\/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\/car-valve-body-focused-1024x682.jpg\" alt=\"car valve body focused\" class=\"wp-image-74880\" width=\"1024\" height=\"682\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-valve-body-focused-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-valve-body-focused-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-valve-body-focused-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-valve-body-focused-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-valve-body-focused-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-valve-body-focused-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-valve-body-focused-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-valve-body-focused.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The transmission fluid pressure sensor is usually located on the side of the transmission&rsquo;s valve body.<\/figcaption><\/figure>\n\n\n\n<p>The sensor turns the mechanical pressure applied by the transmission fluid into a voltage signal. It transmits the signal to the TCM or PCM, which shares the readings with other controllers when the need comes up.<\/p>\n\n\n\n<p>Thanks to the transmission fluid pressure sensor readings, the control module can determine the right transmission operating pressure or when to shift transmission gears.<\/p>\n\n\n\n<p>The PCM regularly checks the readings sent by the transmission <a href=\"https:\/\/www.carparts.com\/oil-pressure-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"fluid pressure sensor\">fluid pressure sensor<\/a>. It compares the inputs with the normal operating voltages recorded in its memory. If the control module finds a discrepancy, it will set the generic powertrain code P0989.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P0989 can differ according to the vehicle manufacturer. Check 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 a Code P0989?<\/h2>\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<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 level\">Low transmission fluid level<\/a><\/li><li>Bad transmission fluid pressure sensor<\/li><li>Corroded, ground, shorted, or loose wires and connectors<\/li><li>Faulty TCM<\/li><li>Internal transmission or valve body problems<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of a Code P0989?<\/h2>\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>Higher fuel consumption<\/li><li>Improperly shifting transmission<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0989 Code<\/h2>\n\n\n\n<p>The P0989 code is a generic powertrain code that various makes and models can log. However, it can be caused by different problems, depending on the vehicle. So there isn&rsquo;t a single solution that applies to all instances of a code P0989.<\/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\/mechanic-on-car-passenger-side-running-obd-diagnostic-1024x682.jpg\" alt=\"mechanic on car passenger side running obd diagnostic\" class=\"wp-image-74891\" width=\"1024\" height=\"682\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-on-car-passenger-side-running-obd-diagnostic-1024x682.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-on-car-passenger-side-running-obd-diagnostic-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-on-car-passenger-side-running-obd-diagnostic-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-on-car-passenger-side-running-obd-diagnostic-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-on-car-passenger-side-running-obd-diagnostic-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-on-car-passenger-side-running-obd-diagnostic-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-on-car-passenger-side-running-obd-diagnostic-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-on-car-passenger-side-running-obd-diagnostic.jpg 2000w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>If you&rsquo;re not confident about diagnosing your vehicle&rsquo;s transmission fluid pressure sensor\/switch on your own, it&rsquo;s best to take it to an auto repair shop for a proper diagnosis.<\/figcaption><\/figure>\n\n\n\n<p>If you&rsquo;re not confident about diagnosing your vehicle&rsquo;s transmission fluid pressure sensor\/switch on your own, it&rsquo;s best to take it to an auto repair shop for a proper diagnosis.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0989 Code<\/h2>\n\n\n\n<p>Without the right tools and training to work on the transmission fluid pressure sensor, trying to repair a P0989 code can prove challenging. In those cases, it&rsquo;s a good idea to let technicians handle the repair job.<\/p>\n\n\n\n<p>But if you have advanced technical knowledge and hands-on experience when it comes to testing and replacing the transmission fluid pressure sensor, you can resolve the issue yourself. Keep in mind that the location of the &ldquo;E&rdquo; circuit can vary depending on the vehicle. So make sure you consult a vehicle-specific <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> before you get started.<\/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>The transmission fluid pressure (TFP) sensor\/switch plays a critical part in ensuring smooth shifting while driving. The PCM or TCM&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0989-code-transmission-fluid-pressure-sensor-switch-e-circuit-low\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":74890,"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":[2158,1887,3167,1323,1838,3009,1222,3168],"ppma_author":[2607,2855],"class_list":{"0":"post-74852","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-auto-trans-oil-pressure-sensor","9":"tag-automatic-transmission-oil-pressure-switch","10":"tag-automatic-transmission-pressure-sensor","11":"tag-engine-control-module-2","12":"tag-oil-pressure-sensor","13":"tag-transmission-case","14":"tag-transmission-control-module","15":"tag-valve-body","16":"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>P0989 Code: Transmission Fluid Pressure Sensor\/Switch \u201cE\u201d Circuit Low - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Did your vehicle log a P0989 code? Find out what it means, its possible causes, and its common symptoms.\" \/>\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\/p0989-code-transmission-fluid-pressure-sensor-switch-e-circuit-low\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0989 Code: Transmission Fluid Pressure Sensor\/Switch \u201cE\u201d Circuit Low - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Did your vehicle log a P0989 code? Find out what it means, its possible causes, and its common symptoms.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0989-code-transmission-fluid-pressure-sensor-switch-e-circuit-low\/\" \/>\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=\"2022-10-10T02:02:54+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-09-29T08:47:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/mechanic-tries-to-troubleshooting-p0989-code.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1331\" \/>\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=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0989-code-transmission-fluid-pressure-sensor-switch-e-circuit-low\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0989-code-transmission-fluid-pressure-sensor-switch-e-circuit-low\\\/\"},\"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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