{"id":15680,"date":"2022-03-15T00:54:00","date_gmt":"2022-03-15T07:54:00","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=15680"},"modified":"2024-07-19T20:14:47","modified_gmt":"2024-07-20T03:14:47","slug":"p0123-code-throttle-pedal-position-sensor-a-circuit-high","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/","title":{"rendered":"P0123 Code: Throttle \/ Pedal Position Sensor &#8220;A&#8221; 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\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column_ec92d7-bc > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_ec92d7-bc > .kt-inside-inner-col,.kadence-column_ec92d7-bc > .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_ec92d7-bc > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_ec92d7-bc > .kt-inside-inner-col{flex-direction:column;}.kadence-column_ec92d7-bc > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_ec92d7-bc > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_ec92d7-bc{position:relative;}@media all and (max-width: 1024px){.kadence-column_ec92d7-bc > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_ec92d7-bc > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_ec92d7-bc qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-faa078  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-0d1735\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_314968-cd, .wp-block-kadence-advancedheading.kt-adv-heading_314968-cd[data-kb-block=\"kb-adv-heading_314968-cd\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_314968-cd mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_314968-cd[data-kb-block=\"kb-adv-heading_314968-cd\"] 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_314968-cd img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_314968-cd[data-kb-block=\"kb-adv-heading_314968-cd\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_314968-cd summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_314968-cd\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Diagnostic Trouble Code (DTC) P0123 code stands for &ldquo;Throttle\/Pedal Position Sensor &lsquo;A&rsquo; Circuit High.&rdquo;<\/li><li>The powertrain control module (PCM) will trigger the P0123 code if the throttle position sensor sends a signal that exceeds a certain threshold for a specific amount of time.<\/li><li>The P0123 code can be caused by a defective throttle position sensor or pedal position sensor, wiring issues, a dirty throttle body, or PCM issues.<\/li><li>The common symptoms of the P0123 code include an illuminated check engine light, hesitating during acceleration, or a rough-running engine.<\/li><\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The throttle position (TP) sensor is a device that helps the engine computer determine optimal ignition spark timing and fuel injection. It does this by determining how far open the throttle valve is. Vehicles with electronic throttle control (ETC) use two throttle position sensors as a fail-safe measure.<\/p>\n\n\n\n<p>If the engine computer receives a signal from the TP sensor that exceeds the maximum limit for a set period, a P0123 code may get registered by on-board diagnostics.<\/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\/03\/throttle-position-sensor-1024x653.jpg\" alt=\"throttle position sensor\" class=\"wp-image-67618\" width=\"1024\" height=\"653\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/03\/throttle-position-sensor-1024x653.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/03\/throttle-position-sensor-300x191.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/03\/throttle-position-sensor-768x490.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/03\/throttle-position-sensor-150x96.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/03\/throttle-position-sensor.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Code P0123 may be triggered when your car computer receives a signal from the TP sensor that exceeds the maximum limit for a set period.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0123 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic Trouble Code (DTC) P0123 code stands for &ldquo;Throttle\/Pedal Position Sensor &ldquo;A&rdquo; Circuit High.&rdquo; <\/p>\n\n\n\n<p>The throttle position (TP) sensor &ldquo;A&rdquo; is a potentiometer that is mounted on the throttle body and shaft that determines the throttle valve position. It monitors the throttle blade angle and relays this information to the throttle actuator module or powertrain control module (PCM).<\/p>\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<p>A signal that exceeds a certain threshold for a specific amount of time will cause the PCM to log a throttle position sensor code.<\/p>\n\n\n\n<p>It&rsquo;s worth noting that vehicles with ETC also use a pair of accelerator pedal position (APP) sensors to measure how far the gas pedal is being depressed. On some vehicles, code P0123 may also be set if there&rsquo;s a problem with the APP sensor, rather than the TP sensor.<\/p>\n\n\n\n<p>If you&rsquo;re planning to resolve P0123 yourself, you can find more useful information in our technical discussion about <a href=\"https:\/\/www.carparts.com\/blog\/p0122-code-throttle-position-sensor-switch-a-circuit-low-input\/#A_Closer_Look_at_Throttle_Position_Sensors\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"throttle position sensors\">throttle position sensors<\/a>.<\/p>\n\n\n\n<p><em><strong>Note:<\/strong> The definition of code P0123 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<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/cleaning-throttle-body-1024x819.jpeg\" alt=\"cleaning throttle body\" class=\"wp-image-15707\" width=\"1024\" height=\"819\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/cleaning-throttle-body-1024x819.jpeg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/cleaning-throttle-body-300x240.jpeg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/cleaning-throttle-body-768x614.jpeg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/cleaning-throttle-body-150x120.jpeg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/cleaning-throttle-body.jpeg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>A dirty throttle body is one of the possible causes of the P0123 code.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Possible Causes of the P0123 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/bad-throttle-position-sensor-symptoms-what-you-need-to-know\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Defective throttle position sensor\">Defective throttle position sensor<\/a><\/li><li>Defective pedal position sensor <\/li><li>Throttle\/Pedal Position sensor circuit issues such as: <ul><li>Loose <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wiring\">wiring<\/a> or connections<\/li><li>Circuit shorted to voltage<\/li><\/ul><\/li><li>TP sensor is not securely mounted<\/li><li>Dirty or <a href=\"https:\/\/www.carparts.com\/blog\/bad-throttle-body-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"faulty throttle body\">faulty throttle body<\/a><\/li><li>PCM issues (e.g., software update is needed)<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0123 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Check engine light is illuminated\">Check engine light is illuminated<\/a><\/li><li>Engine is hard starting or <a href=\"https:\/\/www.carparts.com\/blog\/my-car-wont-accelerate-properly-when-i-push-the-gas-causes\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"hesitating during acceleration\">hesitating during acceleration<\/a> (in some cases)<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/car-shuts-off-while-driving-causes-what-to-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Engine stalls\">Engine stalls<\/a> or runs rough <\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0123 Code<\/h2>\n\n\n\n<p>A DTC P0123 is a generic <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"trouble code\">trouble code<\/a> that may be logged in vehicles from different auto manufacturers. While these vehicles may exhibit similar triggers and symptoms, the steps for diagnosis and repair may vary between different makes and models. <\/p>\n\n\n\n<p>If you&rsquo;re not confident about conducting diagnostic tests on your vehicle, it&rsquo;s a good idea to bring it to a professional mechanic. Otherwise, you may go ahead and diagnose the issue yourself. To help you get started, here are some videos that may give you an idea of what the process might involve:<\/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=\"Throttle Position Sensor trouble code (P0123) caused by bent computer pin\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/6-FY2IgatFs?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=\"TPS Signal Shorted to 12v Scan Data Fixed at 5v - P0123\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Ip6fBt9SIRo?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 P0123 Code<\/h2>\n\n\n\n<p>Attempting to fix a P0123 code may become a frustrating task if you don&rsquo;t have the right tools and know-how to test the sensor circuit. In most cases, it&rsquo;s best to leave the job to professionals.<\/p>\n\n\n\n<p>For DIYers with advanced technical knowledge and hands-on experience who prefer to test and replace their TP sensor on their own, it will be helpful to rely on <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"repair manuals\">repair manuals<\/a>. Guides like those from Chilton or an ALLDATA subscription provide vehicle-specific repair information.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Get Parts To Solve a Triggered P0123 Code<\/h2>\n\n\n\n<p>A faulty throttle position sensor can trigger a P0123 code and cause symptoms like a rough-running engine. This might seem minor, but you shouldn&rsquo;t ignore this because it can snowball into more severe engine issues. Let CarParts.com help you get the right throttle position sensor quickly and at a great price.<\/p>\n\n\n\n<p>Trust CarParts.com for high-quality throttle position sensors. Our sensors are sourced from only the most reputable aftermarket manufacturers in the industry. They&rsquo;re precision-engineered to fit in your vehicle and restore it to tip-top shape. We also offer great value. Our parts are competitively priced so that you can fix your vehicle without breaking the bank.<\/p>\n\n\n\n<p>Need a new <a href=\"https:\/\/www.carparts.com\/throttle-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"throttle position sensor\">throttle position sensor<\/a>? Enjoy our low prices and shop for a new one here at CarParts.com!<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Producrs Mentioned in this Guide<\/h2>\n\n\n\n<div class=\"reusable-productlink\"> \n\n  \n\n    <!-- start of editable content --> \n\n\n    <a href=\"https:\/\/www.carparts.com\/throttle-position-sensor\" target=\"_blank\" aria-label=\"throttle position sensor\" rel=\"noopener\"> \n\n        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/repf314207_1\" alt=\"throttle position sensor\"> \n\n<strong>Throttle Position Sensor<\/strong> \n\n    <\/a> \n\n\n    <a href=\"https:\/\/www.carparts.com\/accelerator-pedal-position-sensor\" target=\"_blank\" aria-label=\"accelerator pedal position sensor\" rel=\"noopener\"> \n\n        <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/image\/upload\/d_noimage.jpg,h_200,w_200,c_pad,f_auto,q_auto,dpr_auto,e_sharpen\/images\/rj32160001_1\" alt=\"accelerator pedal position sensor\"> \n\n<strong>Accelerator Pedal Position Sensor<\/strong> \n\n    <\/a> \n\n\n     <!-- end of editable content --> \n\n  \n\n<\/div>\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>The throttle position (TP) sensor is a device that helps the engine computer determine optimal ignition spark timing and fuel&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":15704,"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":[1323,1615,1679],"ppma_author":[2607,2985],"class_list":{"0":"post-15680","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-engine-control-module-2","9":"tag-throttle-body","10":"tag-throttle-position-sensor","11":"entry"},"acf":{"adrotate_specific_mobile_ad":"","adrotate_specific_desktop_ad":""},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>P0123 Code: Throttle \/ Pedal Position Sensor &quot;A&quot; Circuit High - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what the P0123 code means, its possible causes, and common symptoms. Learn about proper diagnosis and repair. 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:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0123 Code: Throttle \/ Pedal Position Sensor &quot;A&quot; Circuit High - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what the P0123 code means, its possible causes, and common symptoms. Learn about proper diagnosis and repair. Read on for more info.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-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=\"2022-03-15T07:54:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-07-20T03:14:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/throttle-body-of-a-car.jpeg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\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=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"4\",\"name\":\"CarParts.com Research Team\",\"jobTitle\":\"Expert Automotive Writer\",\"description\":\"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/thecpteam\\\/\",\"sameAs\":\"https:\\\/\\\/www.facebook.com\\\/carpartscom, https:\\\/\\\/twitter.com\\\/CarPartscom, https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/, https:\\\/\\\/www.instagram.com\\\/carpartscom\\\/\"},{\"@type\":\"Person\",\"$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. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.\",\"knowsAbout\":\"Auto Repair, Car Maintenance, Auto Parts, Car Reviews\",\"publishingPrinciples\":\"\\\/blog\\\/our-team\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/author\\\/richardmccuistian\\\/\",\"sameAs\":\"https:\\\/\\\/www.linkedin.com\\\/in\\\/richard-mccuistian-2681891b\\\/, https:\\\/\\\/www.youtube.com\\\/user\\\/McCuistian\"}],\"headline\":\"P0123 Code: Throttle \\\/ Pedal Position Sensor &#8220;A&#8221; Circuit High\",\"datePublished\":\"2022-03-15T07:54:00+00:00\",\"dateModified\":\"2024-07-20T03:14:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/\"},\"wordCount\":841,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/09\\\/throttle-body-of-a-car.jpeg\",\"keywords\":[\"engine-control-module\",\"throttle-body\",\"throttle-position-sensor\"],\"articleSection\":[\"OBD-II Trouble Codes\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/\",\"url\":\"https:\\\/\\\/carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/\",\"name\":\"P0123 Code: Throttle \\\/ Pedal Position Sensor \\\"A\\\" Circuit High - In The Garage with CarParts.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/09\\\/throttle-body-of-a-car.jpeg\",\"datePublished\":\"2022-03-15T07:54:00+00:00\",\"dateModified\":\"2024-07-20T03:14:47+00:00\",\"description\":\"Find out what the P0123 code means, its possible causes, and common symptoms. Learn about proper diagnosis and repair. Read on for more info.\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/09\\\/throttle-body-of-a-car.jpeg\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2020\\\/09\\\/throttle-body-of-a-car.jpeg\",\"width\":1500,\"height\":1000,\"caption\":\"throttle body of a car\"},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"name\":\"In The Garage with CarParts.com\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#organization\",\"name\":\"CarParts.com\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"contentUrl\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/wp-content\\\/uploads\\\/2025\\\/03\\\/cp-itg-logo.png\",\"width\":2048,\"height\":398,\"caption\":\"CarParts.com\"},\"image\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/carpartscom\",\"https:\\\/\\\/x.com\\\/carpartscom\",\"https:\\\/\\\/www.instagram.com\\\/carpartscom\",\"https:\\\/\\\/www.youtube.com\\\/@CarPartscomOfficial\\\/\"]},{\"@type\":\"Person\",\"@id\":\"\",\"url\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"P0123 Code: Throttle \/ Pedal Position Sensor \"A\" Circuit High - In The Garage with CarParts.com","description":"Find out what the P0123 code means, its possible causes, and common symptoms. Learn about proper diagnosis and repair. Read on for more info.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/","og_locale":"en_US","og_type":"article","og_title":"P0123 Code: Throttle \/ Pedal Position Sensor \"A\" Circuit High - In The Garage with CarParts.com","og_description":"Find out what the P0123 code means, its possible causes, and common symptoms. Learn about proper diagnosis and repair. Read on for more info.","og_url":"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/","og_site_name":"In The Garage with CarParts.com","article_publisher":"https:\/\/www.facebook.com\/carpartscom","article_published_time":"2022-03-15T07:54:00+00:00","article_modified_time":"2024-07-20T03:14:47+00:00","og_image":[{"width":1500,"height":1000,"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/throttle-body-of-a-car.jpeg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_creator":"@carpartscom","twitter_site":"@carpartscom","twitter_misc":{"Written by":"","Est. reading time":"5 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/#article","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/"},"author":[{"@type":"Person","$id":"4","name":"CarParts.com Research Team","jobTitle":"Expert Automotive Writer","description":"The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com&#039;s thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","sameAs":"https:\/\/www.facebook.com\/carpartscom, https:\/\/twitter.com\/CarPartscom, https:\/\/www.youtube.com\/@CarPartscomOfficial\/, https:\/\/www.instagram.com\/carpartscom\/"},{"@type":"Person","$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. Richard is ASE certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.","knowsAbout":"Auto Repair, Car Maintenance, Auto Parts, Car Reviews","publishingPrinciples":"\/blog\/our-team\/","url":"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/","sameAs":"https:\/\/www.linkedin.com\/in\/richard-mccuistian-2681891b\/, https:\/\/www.youtube.com\/user\/McCuistian"}],"headline":"P0123 Code: Throttle \/ Pedal Position Sensor &#8220;A&#8221; Circuit High","datePublished":"2022-03-15T07:54:00+00:00","dateModified":"2024-07-20T03:14:47+00:00","mainEntityOfPage":{"@id":"https:\/\/www.carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/"},"wordCount":841,"commentCount":0,"publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"image":{"@id":"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/throttle-body-of-a-car.jpeg","keywords":["engine-control-module","throttle-body","throttle-position-sensor"],"articleSection":["OBD-II Trouble Codes"],"inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/www.carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/","url":"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/","name":"P0123 Code: Throttle \/ Pedal Position Sensor \"A\" Circuit High - In The Garage with CarParts.com","isPartOf":{"@id":"https:\/\/www.carparts.com\/blog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/#primaryimage"},"image":{"@id":"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/#primaryimage"},"thumbnailUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/throttle-body-of-a-car.jpeg","datePublished":"2022-03-15T07:54:00+00:00","dateModified":"2024-07-20T03:14:47+00:00","description":"Find out what the P0123 code means, its possible causes, and common symptoms. Learn about proper diagnosis and repair. Read on for more info.","inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/#primaryimage","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/throttle-body-of-a-car.jpeg","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/throttle-body-of-a-car.jpeg","width":1500,"height":1000,"caption":"throttle body of a car"},{"@type":"WebSite","@id":"https:\/\/www.carparts.com\/blog\/#website","url":"https:\/\/www.carparts.com\/blog\/","name":"In The Garage with CarParts.com","description":"","publisher":{"@id":"https:\/\/www.carparts.com\/blog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.carparts.com\/blog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.carparts.com\/blog\/#organization","name":"CarParts.com","url":"https:\/\/www.carparts.com\/blog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/","url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","contentUrl":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2025\/03\/cp-itg-logo.png","width":2048,"height":398,"caption":"CarParts.com"},"image":{"@id":"https:\/\/www.carparts.com\/blog\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/carpartscom","https:\/\/x.com\/carpartscom","https:\/\/www.instagram.com\/carpartscom","https:\/\/www.youtube.com\/@CarPartscomOfficial\/"]},{"@type":"Person","@id":"","url":"https:\/\/www.carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/"}]}},"featured_image_src":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/throttle-body-of-a-car.jpeg","featured_image_src_square":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2020\/09\/throttle-body-of-a-car.jpeg","author_info":{"display_name":"","author_link":"https:\/\/www.carparts.com\/blog\/p0123-code-throttle-pedal-position-sensor-a-circuit-high\/"},"authors":[{"term_id":2607,"user_id":1651,"is_guest":0,"slug":"thecpteam","display_name":"CarParts.com Research Team","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2024\/04\/thecpteam.jpg"},"author_category":"","user_url":"https:\/\/www.carparts.com\/blog\/author\/thecpteam\/","last_name":"","first_name":"CarParts.com Research Team","job_title":"","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. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust."},{"term_id":2985,"user_id":1646,"is_guest":0,"slug":"richardmccuistian","display_name":"Richard McCuistian, ASE Certified Master Automobile Technician","avatar_url":{"url":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/richard-mccuistian.png","url2x":"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2021\/11\/richard-mccuistian.png"},"author_category":"","user_url":"https:\/\/www.carparts.com\/blog\/author\/richardmccuistian\/","last_name":"McCuistian","first_name":"Richard","job_title":"ASE Certified Master Automobile Technician","description":"<div class=\"auth-social-links\"><a href=\"https:\/\/www.linkedin.com\/in\/richard-mccuistian-2681891b\/\" class=\"btn\" rel=\"nofollow noopener\" target=\"_blank\" aria-label=\"linkedin\" aria-labelledby=\"linkedin\">LinkedIn<\/a><a href=\"https:\/\/www.youtube.com\/user\/McCuistian\" class=\"btn\" rel=\"nofollow noopener\" target=\"_blank\" aria-label=\"instagram\" aria-labelledby=\"instagram\">Youtube<\/a><\/div>\r\n\r\nRichard McCuistian grew up in Alabama learning from his father who ran an automotive repair shop. Richard has worked for nearly 50 years in the automotive field as a professional technician, an instructor, a freelance automotive writer for Motor Age, ACtion magazine, Power Stroke Registry, and others (published every year since May 2000). He has developed training courses and written or edited training material for companies in the U.S. Canada, and the Netherlands, and even Bulgaria. He maintained an \u201cask a mechanic\u201d website for 10 years answering questions emailed to him from all over the world.\r\n\r\nRichard has an instructional automotive YouTube channel \u201cMcCuistian\u201d with 13,500 subscribers and over 1,300 videos. Much of his professional work requires photography and videography in shop environments, but Richard also enjoys taking pictures of landscapes, skyscapes, old barns and houses, small towns. He has produced a coffee table book of digital watercolors called \u201cMemories of South Alabama\u201d created from his personal photos, along with a dozen Christian fiction short original novels and a collection of short stories, all available in Kindle or softcover format. Richard has written a 2,500-word Bible study every week for the past 20 years and uses it to teach a small group at his church every Sunday morning.\r\n\r\n<strong>Credentials:<\/strong>\r\n\r\n<ul class=\"author-list\">\r\n<li><p>ASE Certified for more than 30 years in 10 categories, including L1 Advanced Engine Performance and Light Vehicle Diesel.<\/p><\/li>\r\n<li><p>Professional Mechanic\/Technician for 25 years with experience on diesel and gasoline engines, vehicles and equipment (including hydraulics).<\/p><\/li>\r\n<li><p>Spent 5 years in fleet maintenance, 20 years in independent shops and dealerships (VW, Mazda, Renault, Jeep, Ford, Lincoln), specializing in driveability and electronics for the last 14 years of his career at the same dealership.<\/p><\/li>\r\n<li><p>Senior Contributing Editor at Motor Age Magazine, first published in Motor Age in May of 2000 and every year since. He has won two International Automotive Media Awards for technical articles published in trade magazines.<\/p><\/li>\r\n<li><p>Has attended hundreds of hours of automotive training from OEMs including GM, Volkswagen, Mazda, Renault, Jeep, Chrysler, as well as additional training at events like KC Vision and MACS (Mobile Air Climate Systems Association).<\/p><\/li>\r\n<li><p>Taught college level auto mechanics for 19 years.<\/p><\/li>\r\n<li><p>Has written for automotive training companies (including course development work for training companies in Canada and the Netherlands) and has been hired to teach professional trade show technician courses at multiple training events in Texas and Alabama.<\/p><\/li>\r\n<li><p>While still teaching at the college level, Richard launched a new automotive program in Geneva, Alabama, setting up a dual enrollment department in a new building, organizing the shop and classroom, teaching morning classes to high school students for 2 years while still teaching at the college in the afternoon.<\/p><\/li>\r\n<li><p>Richard\u2019s college program at Lurleen B. Wallace Community College worked at professional shop speed during his tenure to prepare graduates for production level work in the real world.<\/p><\/li>\r\n<\/ul>"}],"_links":{"self":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/15680","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/comments?post=15680"}],"version-history":[{"count":0,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/posts\/15680\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media\/15704"}],"wp:attachment":[{"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/media?parent=15680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/categories?post=15680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/tags?post=15680"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.carparts.com\/blog\/wp-json\/wp\/v2\/ppma_author?post=15680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}