{"id":16181,"date":"2022-05-04T01:50:00","date_gmt":"2022-05-04T08:50:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=16181"},"modified":"2024-06-05T18:39:02","modified_gmt":"2024-06-06T01:39:02","slug":"p0523-code-engine-oil-pressure-sensor-switch-a-circuit-high","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0523-code-engine-oil-pressure-sensor-switch-a-circuit-high\/","title":{"rendered":"P0523 Code: Engine Oil Pressure Sensor\/Switch \u201cA\u201d 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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_9b5d64-56 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_9b5d64-56 > .kt-inside-inner-col,.kadence-column_9b5d64-56 > .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_9b5d64-56 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_9b5d64-56 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_9b5d64-56 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_9b5d64-56 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_9b5d64-56{position:relative;}@media all and (max-width: 1024px){.kadence-column_9b5d64-56 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_9b5d64-56 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_9b5d64-56 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-3c4805  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-6662b8\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_44a982-77, .wp-block-kadence-advancedheading.kt-adv-heading_44a982-77[data-kb-block=\"kb-adv-heading_44a982-77\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_44a982-77 mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_44a982-77[data-kb-block=\"kb-adv-heading_44a982-77\"] 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_44a982-77 img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_44a982-77[data-kb-block=\"kb-adv-heading_44a982-77\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_44a982-77 summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_44a982-77\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Your vehicle&rsquo;s powertrain control module (PCM) will log a P0523 code if it detects an unusually high oil pressure reading from the engine oil pressure sensor or switch. This can be caused by a defective sensor, wiring issues, mechanical faults in the oil pump, or restricted oil passages.<\/li><li>Other oil pressure-related codes that might register include P0520, P0521, P0522, and P0524.<\/li><li>A high oil pressure gauge reading and an illuminated oil pressure warning light are telltale signs of a logged P0523 code.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>Whenever the PCM detects a sensor signal that does not match manufacturer specifications, it logs an error code in your vehicle&rsquo;s on-board diagnostics (OBD). The first step in diagnosing your vehicle is to connect it to an OBD scan tool to retrieve the specific trouble code and properly identify which sensor circuit is malfunctioning.<\/p>\n\n\n\n<p>One of the <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"OBD codes\">OBD codes<\/a> that you may encounter is the code P0523. This refers to a problem in the operation of your vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/blog\/car-engine-parts\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"engine\">engine<\/a> oil pressure sensor. Here is some basic information that can help understand what this code means and how it affects your vehicle.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0523 Code Mean?<\/h2>\n\n\n\n<p>The P0523 code is defined as Engine Oil Pressure Sensor\/Switch &ldquo;A&rdquo; Circuit High.<\/p>\n\n\n\n<p>The <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"PCM\">PCM<\/a> monitors engine oil pressure with the help of the Engine Oil Pressure sensor. The P0523 code is typically logged when the PCM receives high readings from this sensor. This code belongs to a range of diagnostic trouble codes that refer to oil pressure problems. Related DTCs include <a href=\"https:\/\/www.carparts.com\/blog\/p0520-code-engine-oil-pressure-sensor-switch-a-circuit\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P0520\">P0520<\/a>, <a href=\"https:\/\/www.carparts.com\/blog\/p0521-code-engine-oil-pressure-sensorswitch-rangeperformance\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P0521\">P0521<\/a>, <a href=\"https:\/\/www.carparts.com\/blog\/p0522-code-engine-oil-pressure-sensor-switch-a-circuit-low\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"P0522\">P0522<\/a>, and P0524.<\/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\/05\/car-engine-control-unite-ECU-with-the-black-electric-fuse-box-on-right-side-1024x683.jpg\" alt=\"car engine control unite ECU with the black electric fuse box on right side\" class=\"wp-image-68903\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/05\/car-engine-control-unite-ECU-with-the-black-electric-fuse-box-on-right-side-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/05\/car-engine-control-unite-ECU-with-the-black-electric-fuse-box-on-right-side-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/05\/car-engine-control-unite-ECU-with-the-black-electric-fuse-box-on-right-side-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/05\/car-engine-control-unite-ECU-with-the-black-electric-fuse-box-on-right-side-1536x1024.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/05\/car-engine-control-unite-ECU-with-the-black-electric-fuse-box-on-right-side-scaled.jpg 2048w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/05\/car-engine-control-unite-ECU-with-the-black-electric-fuse-box-on-right-side-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/05\/car-engine-control-unite-ECU-with-the-black-electric-fuse-box-on-right-side-150x100.jpg 150w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The PCM monitors engine oil pressure with the help of the Engine Oil Pressure sensor.<\/figcaption><\/figure>\n\n\n\n<p>Aside from the Check Engine Light, the P5023 code may also trigger the low oil warning light on the instrument cluster to be illuminated.<\/p>\n\n\n\n<p>Make sure to read our note about <a href=\"https:\/\/www.carparts.com\/blog\/p0521-code-engine-oil-pressure-sensorswitch-rangeperformance\/#A_Quick_Note_on_Oil_Pressure_for_Different_OEMs\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oil pressure for different OEMs\">oil pressure for different OEMs<\/a> before you attempt any DIY diagnosis or fix for code P0523.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of code P0523<\/em><strong><em> <\/em><\/strong><em>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\">&nbsp;What are the Possible Causes of the P0523 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li>Defective Engine oil pressure sensor<\/li><li>Powertrain Control Module (PCM) failure\/ PCM software in need of an update<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Wiring issue\">Wiring issue<\/a><\/li><li>High oil pressure (mechanical <a href=\"https:\/\/www.carparts.com\/oil-pump\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oil pump\">oil pump<\/a> fault)<\/li><li>High pressure due to obstruction\/restriction in oil passage(s)<\/li><li>Wrong engine oil used<\/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\">&nbsp;What are the Common Symptoms of the P0523 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=\"Check engine light is on\">Check engine light is on<\/a><\/li><li><a href=\"https:\/\/www.carparts.com\/oil-pressure-gauge\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Oil pressure gauge\">Oil pressure gauge<\/a> reading high<\/li><li>Oil pressure warning light is illuminated<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0523 Code<\/h2>\n\n\n\n<p>Identifying the underlying cause of the P0523<strong> <\/strong>code can be difficult, especially if you&rsquo;re not confident with your automotive knowledge. In most cases, it would be best to bring your vehicle to an auto repair shop and seek the help of a professional for an accurate diagnosis.<\/p>\n\n\n\n<p>Here are videos that can help give you a better idea of how this trouble code might be diagnosed:<\/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=\"Chevy Truck No Oil Pressure - P0523\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/CIfpRHYWIIo?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=\"Jeep Grand Cherokee - Check Engine Light P0141 \/ P0155 \/ P0523\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/et2XuiBKMyI?start=794&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 P0523 Code<\/h2>\n\n\n\n<p>The P0523 code is a generic trouble code that may apply to various makes and models. While vehicles from different manufacturers may share common symptoms, the steps for diagnosis and repair for a P0523 <a href=\"https:\/\/www.carparts.com\/chevrolet\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Chevy\">Chevy<\/a> code may differ from a P0523 <a href=\"https:\/\/www.carparts.com\/gmc\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"GMC\">GMC<\/a> code.<\/p>\n\n\n\n<p>If you&rsquo;re an advanced DIYer who&rsquo;d like to fix this code on your own, it will be helpful to refer to your <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manual\">repair manual<\/a> or get factory vehicle repair information from an online subscription service.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Buying a Replacement Oil Pressure Sensor for Your Engine to Fix DTC P0523<\/h2>\n\n\n\n<p>Depending on the cause, you might have to inspect your vehicle&rsquo;s <a href=\"https:\/\/www.carparts.com\/oil-pressure-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"oil pressure sensor\">oil pressure sensor<\/a> if your PCM logs DTC P0523. If it&rsquo;s faulty, don&rsquo;t put off replacing it to keep it from affecting other parts and logging other trouble codes. The great news is that you can get a replacement that&rsquo;s built to last at <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a>.<\/p>\n\n\n\n<p>All our oil pressure sensors passed the highest quality control standards from industry professionals. Simply use your mobile phone or computer to visit our website. Narrow down the selection to compatible parts with our vehicle selector, then change the filters to find the sensors that match your needs.<\/p>\n\n\n\n<p>Here at CarParts.com, you&rsquo;ll never go over budget when shopping for parts to repair your ride. All our replacement parts are available at competitive prices to give you the best value for your money. We also guarantee fast and reliable shipping.<\/p>\n\n\n\n<p>Shop now and take advantage of the best deals on oil pressure sensors.<\/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>Whenever the PCM detects a sensor signal that does not match manufacturer specifications, it logs an error code in your&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0523-code-engine-oil-pressure-sensor-switch-a-circuit-high\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":16186,"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":[2158,1887,3354,1323,1838,1839],"ppma_author":[2607,2985],"class_list":{"0":"post-16181","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-car-engine-all-articles","11":"tag-engine-control-module-2","12":"tag-oil-pressure-sensor","13":"tag-oil-pressure-switch","14":"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>P0523 Code: Engine Oil Pressure Sensor\/Switch \u201cA\u201d Circuit High - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Discover what causes the P0523 code to be triggered, the common symptoms that accompany it, and how to fix this trouble 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\/p0523-code-engine-oil-pressure-sensor-switch-a-circuit-high\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0523 Code: Engine Oil Pressure Sensor\/Switch \u201cA\u201d Circuit High - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Discover what causes the P0523 code to be triggered, the common symptoms that accompany it, and how to fix this trouble code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0523-code-engine-oil-pressure-sensor-switch-a-circuit-high\/\" \/>\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=\"2022-05-04T08:50:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-06-06T01:39:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/car-oil-pressure-sensor-1024x683.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"683\" \/>\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=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0523-code-engine-oil-pressure-sensor-switch-a-circuit-high\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0523-code-engine-oil-pressure-sensor-switch-a-circuit-high\\\/\"},\"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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