{"id":73877,"date":"2022-10-05T03:26:04","date_gmt":"2022-10-05T10:26:04","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=73877"},"modified":"2024-07-06T06:29:37","modified_gmt":"2024-07-06T13:29:37","slug":"p0550-code-power-steering-pressure-sensor-switch-circuit","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0550-code-power-steering-pressure-sensor-switch-circuit\/","title":{"rendered":"P0550 Code: Power Steering Pressure Sensor\/Switch 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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_2e3a6f-dc > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_2e3a6f-dc > .kt-inside-inner-col,.kadence-column_2e3a6f-dc > .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_2e3a6f-dc > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_2e3a6f-dc > .kt-inside-inner-col{flex-direction:column;}.kadence-column_2e3a6f-dc > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_2e3a6f-dc > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_2e3a6f-dc{position:relative;}@media all and (max-width: 1024px){.kadence-column_2e3a6f-dc > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_2e3a6f-dc > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_2e3a6f-dc qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-9b6c4a  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-cf2295\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_759f6b-f7, .wp-block-kadence-advancedheading.kt-adv-heading_759f6b-f7[data-kb-block=\"kb-adv-heading_759f6b-f7\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_759f6b-f7 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_759f6b-f7[data-kb-block=\"kb-adv-heading_759f6b-f7\"] 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_759f6b-f7 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_759f6b-f7[data-kb-block=\"kb-adv-heading_759f6b-f7\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_759f6b-f7 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_759f6b-f7\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>The PCM uses a power steering pressure sensor to monitor system pressure. Code P0550 is logged once the PCM detects one or multiple conditions that are out of range.<\/li><li>Some of the common causes of the P0550 code include a bad power steering pressure sensor, a power steering fluid leak, and circuit issues.<\/li><li>The common symptoms of a P0550 code include stalling and incorrect idle speed.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Most vehicles with a hydraulic power steering system have a power steering pressure sensor. The powertrain control module (PCM) will register a P0550 code on a scan tool if it detects a general malfunction within the power steering pressure sensor&rsquo;s circuit.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0550 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code P0550 stands for &ldquo;Power Steering Pressure Sensor\/Switch Circuit.&rdquo;<\/p>\n\n\n\n<p>All modern vehicles are equipped with a power steering system that makes it easier for the driver to turn the steering wheel. Some systems use an engine-driven pump and hydraulic fluid to provide steering assist. When such a setup is used, there&rsquo;s usually a <a href=\"https:\/\/www.carparts.com\/power-steering-pressure-switch\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"power steering pressure sensor\">power steering pressure sensor<\/a> that keeps the PCM informed of system pressure. The PCM can then increase engine idle speed when the power steering system pressure gets high enough that the vehicle might stall from the excessive load. If the PCM detects one or multiple conditions outside the specified range of the power steering pressure sensor circuit, the vehicle&rsquo;s computer will log a P0550 code on a scan tool.<\/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\/09\/power-steering-pressure-switch-1024x614.jpg\" alt=\"power steering pressure switch image\" class=\"wp-image-74026\" width=\"1024\" height=\"614\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-pressure-switch-1024x614.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-pressure-switch-300x180.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-pressure-switch-768x461.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-pressure-switch-150x90.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-pressure-switch.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>If the PCM detects one or multiple conditions outside the specified range of the power steering pressure sensor circuit, it will log a P0550 code.<\/figcaption><\/figure>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P0550 might 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 P0550 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Faulty power steering pressure sensor<\/li><li>Circuit problems, such as a damaged <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wire\">wire<\/a> or poor connection<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/low-power-steering-fluid-symptoms-causes-plus-faq\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Power steering fluid leak\">Power steering fluid leak<\/a><\/li><li>An issue with the PCM, such as software in need of an update<\/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 P0550 Code?<\/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>Stalling<\/li><li>Incorrect idle speed<\/li><\/ul>\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\/09\/power-steering-fluid-reservoir-1024x681.jpg\" alt=\"power steering fluid reservoir\" class=\"wp-image-74035\" width=\"1024\" height=\"681\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-fluid-reservoir-1024x681.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-fluid-reservoir-300x199.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-fluid-reservoir-768x510.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-fluid-reservoir-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-fluid-reservoir-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/power-steering-fluid-reservoir.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>A power steering fluid leak can result in logged P0550 code.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0550 Code<\/h2>\n\n\n\n<p>DTC P0550 is a <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"generic powertrain code\">generic powertrain code<\/a> that can be stored in vehicles with an OBD-II system. However, the diagnostic steps may vary depending on your vehicle&rsquo;s make and model. What might work to resolve a P0550 code in a Nissan might not work for a Honda. If you&rsquo;re not familiar with the diagnostic process, it&rsquo;s best to leave the job to an expert to ensure that all steps and protocols are followed.<\/p>\n\n\n\n<p>Here&rsquo;s an instructional video that illustrates what a standard diagnostic process might look like. Make sure to <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"read your vehicle&rsquo;s repair manual\">read your vehicle&rsquo;s repair manual<\/a> before attempting to clear this code.<\/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=\"Power Steering Pressure Sensor Testing (applies to all psi sensors) - Toyota (P0550)\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/WLLxcfC-zeQ?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 P0550 Code<\/h2>\n\n\n\n<p>There&rsquo;s no magic bullet for troubleshooting a P0550 code. You&rsquo;ll have to identify the underlying problems of this code to figure out the right solution. Good thing there are a lot of credible <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=\"resources online\">resources online<\/a> to help you get started. We recommend getting Chilton repair manuals so you can familiarize yourself with your vehicle&rsquo;s parts and subscribing to ALLDATA for a more detailed look at your vehicle&rsquo;s potential problems.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Car Fluids and Replacement Parts to Clear Code P0550<\/h2>\n\n\n\n<p>A triggered P0550 code could lead to head-scratching issues like stalling. Fixing it can require anything from refilling your vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/power-steering-fluid\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"power steering fluid\">power steering fluid<\/a> to replacing the power steering pressure sensor. Thankfully, <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a> has you covered no matter what you need.<\/p>\n\n\n\n<p>We have a great selection of car fluids and replacement parts from the most reputable aftermarket brands today. All our products also come with a low-price and lifetime replacement guarantee to help you get the best value for your money. Order today, and we&rsquo;ll deliver your package in as fast as two business days.<\/p>\n\n\n\n<p>If you have any questions, don&rsquo;t hesitate to dial our toll-free hotline. Our round-the-clock customer service team is always ready to assist you.<\/p>\n\n\n\n<p>Shop now at CarParts.com to resolve this trouble code 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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>Most vehicles with a hydraulic power steering system have a power steering pressure sensor. The powertrain control module (PCM) will&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0550-code-power-steering-pressure-sensor-switch-circuit\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":74025,"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":[1338],"ppma_author":[2607,2855],"class_list":{"0":"post-73877","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-power-steering-pressure-switch","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>P0550 Code: Power Steering Pressure Sensor\/Switch Circuit - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn all about the P0550 code\u2019s symptoms, causes, and troubleshooting steps in this article. 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\/p0550-code-power-steering-pressure-sensor-switch-circuit\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0550 Code: Power Steering Pressure Sensor\/Switch Circuit - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Learn all about the P0550 code\u2019s symptoms, causes, and troubleshooting steps in this article. 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