{"id":75841,"date":"2022-10-18T03:40:27","date_gmt":"2022-10-18T10:40:27","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=75841"},"modified":"2024-05-27T21:50:00","modified_gmt":"2024-05-28T04:50:00","slug":"p0338-code-crankshaft-position-sensor-a-circuit-high-input","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0338-code-crankshaft-position-sensor-a-circuit-high-input\/","title":{"rendered":"P0338 Code: Crankshaft Position Sensor \u201cA\u201d Circuit High Input"},"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_520c55-05 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_520c55-05 > .kt-inside-inner-col,.kadence-column_520c55-05 > .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_520c55-05 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_520c55-05 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_520c55-05 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_520c55-05 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_520c55-05{position:relative;}@media all and (max-width: 1024px){.kadence-column_520c55-05 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_520c55-05 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_520c55-05 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-635c9a  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-7b8881\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_3da3e4-fa, .wp-block-kadence-advancedheading.kt-adv-heading_3da3e4-fa[data-kb-block=\"kb-adv-heading_3da3e4-fa\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_3da3e4-fa mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_3da3e4-fa[data-kb-block=\"kb-adv-heading_3da3e4-fa\"] 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_3da3e4-fa img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_3da3e4-fa[data-kb-block=\"kb-adv-heading_3da3e4-fa\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_3da3e4-fa summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_3da3e4-fa\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>Your vehicle might log a P0338 trouble code when the engine computer detects an issue with the crankshaft position sensor.<\/li><li>The P0338 trouble code can trigger a no-start condition if left unresolved.<\/li><li>Aside from an illuminated check engine light, stalling, unusual RPM readings, and poor engine performance are common symptoms of a logged P0338.<\/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\/crankshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"crankshaft position sensor (CKP)\">crankshaft position sensor (CKP)<\/a> sends information to the powertrain control module (PCM) about the crankshaft&rsquo;s position and rotation speed. The engine uses this information along with information from other sensors to determine ignition timing and fuel injector synchronization. If you think your vehicle&rsquo;s CKP is faulty, you should connect a scan tool to check if a <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"diagnostic trouble code (DTC)\">diagnostic trouble code (DTC)<\/a> like the P0338 has been stored.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0338 Code Mean?<\/h2>\n\n\n\n<p>DTC P0338 stands for Crankshaft Position Sensor &ldquo;A&rdquo; Circuit High Input. The PCM triggers this code when it detects a voltage signal from the CKP that is too high.<\/p>\n\n\n\n<p>The CKP sensor scans the grooves of a reluctor ring using a magnet. This reluctor ring spins at the same rate as the crankshaft. Every time a groove passes over the CKP sensor, the magnetic field is interrupted, which then corresponds to signals sent to the PCM. The PCM is programmed to be able to translate this into information on how fast the crankshaft is spinning as well as its position.<\/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\/crankshaft-position-sensor-1024x614.jpg\" alt=\"crankshaft position sensor image\" class=\"wp-image-75854\" width=\"1024\" height=\"614\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/crankshaft-position-sensor-1024x614.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/crankshaft-position-sensor-300x180.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/crankshaft-position-sensor-768x461.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/crankshaft-position-sensor-150x90.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/crankshaft-position-sensor.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The PCM triggers the code P0338 when it detects a voltage signal from the CKP that is too high.<\/figcaption><\/figure>\n\n\n\n<p>This code can be categorized as a severe DTC because it might trigger a no-start condition, which can prevent the engine from being started. Even if the engine starts while this code is triggered, there is a high risk that it might prevent the engine from starting in the future.<\/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><strong><em>Note:<\/em><\/strong><em> The definition of code P0338 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 P0338 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\"><li><a href=\"https:\/\/www.carparts.com\/blog\/the-top-5-bad-crankshaft-position-sensor-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty CKP sensor\">Faulty CKP sensor<\/a><\/li><li>Faulty CKP sensor wiring<\/li><li>Damaged reluctor ring<\/li><li>Failed PCM<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0338 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><a href=\"https:\/\/www.carparts.com\/blog\/my-car-wont-start-what-should-i-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Engine refuses to start\">Engine refuses to start<\/a><\/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=\"Stalling\">Stalling<\/a><\/li><li>Tachometer doesn&rsquo;t register the engine&rsquo;s <a href=\"https:\/\/www.carparts.com\/blog\/what-does-car-rpm-stand-for\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"RPM\">RPM<\/a><\/li><li>Decreased engine performance<\/li><li>Decreased fuel efficiency<\/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\/10\/instrument-panel-with-tachometer-1024x683.jpg\" alt=\"instrument panel with tachometer\" class=\"wp-image-75859\" width=\"1024\" height=\"683\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/instrument-panel-with-tachometer-1024x683.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/instrument-panel-with-tachometer-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/instrument-panel-with-tachometer-768x512.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/instrument-panel-with-tachometer-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/instrument-panel-with-tachometer-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/instrument-panel-with-tachometer-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/instrument-panel-with-tachometer.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>Your car&rsquo;s tachometer may not be registering the engine&rsquo;s RPM if it has a logged P0338 code.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0338 Code<\/h2>\n\n\n\n<p>Diagnosing a P0338 usually involves using a voltmeter and inspecting the concerned electrical components for damaged or corroded wiring and connectors. The process can have various additional steps, depending on the vehicle&rsquo;s year, make, and model. If you aren&rsquo;t familiar with your vehicle, it&rsquo;s best to have a certified mechanic do the job for you.<\/p>\n\n\n\n<p>But if you think you can handle the task on your own, take a look at the video below to learn more about the diagnostic process.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"CAM or Camshaft Position Sensor Testing\" width=\"500\" height=\"375\" src=\"https:\/\/www.youtube.com\/embed\/itMXO56z1tw?start=39&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 P0338 Code<\/h2>\n\n\n\n<p>Attempting to fix a P0338 code&rsquo;s underlying issues can be a frustrating and confusing task, especially without the right tools and technical information. It might even lead to more issues and a more expensive repair bill if done incorrectly. Under these circumstances, bringing your vehicle to a trained professional might be your best bet to resolve the issue.<\/p>\n\n\n\n<p>But if you&rsquo;re someone who&rsquo;s dealt with trouble codes before, then you probably know that umbrella fixes don&rsquo;t exist. So before you proceed with working on your vehicle, make sure to have the right information. Chilton guides or an ALLDATA subscription contain <a href=\"https:\/\/www.carparts.com\/blog\/why-you-should-always-consult-a-repair-manual\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"vehicle-specific repair information\">vehicle-specific repair information<\/a>, so you might want to check those out before you begin.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Where to Get a New Crankshaft Position Sensor for Your Vehicle<\/h2>\n\n\n\n<p>A damaged crankshaft position sensor definitely takes the fun out of driving. And the longer you put off replacing it, the less time you&rsquo;ll have to enjoy your favorite destinations.<\/p>\n\n\n\n<p>Find the best <a href=\"https:\/\/www.carparts.com\/crankshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"crankshaft position sensor\">crankshaft position sensor<\/a> replacement for your vehicle to resolve the P0338 code here at <a href=\"http:\/\/carparts.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\" aria-label=\"CarParts.com\">CarParts.com<\/a>. Carefully handpicked by a team of industry professionals, our crankshaft position sensors are guaranteed to last a long time.<\/p>\n\n\n\n<p>Start shopping by entering your vehicle&rsquo;s year, make, and model into our vehicle selector. This will narrow down the catalog to compatible crankshaft position sensors for your ride. You can also use the search filters to enjoy a more personalized shopping experience.<\/p>\n\n\n\n<p>It only takes a few minutes to place your order. Shop now, and we&rsquo;ll deliver the part you need straight to your doorstep in as fast as two business days.<\/p>\n\n\n\n<p>Enjoy the best deals on top-notch crankshaft position sensors when you shop from us. All our products come with a low-price and lifetime replacement guarantee, helping you get the best value for your money.<\/p>\n\n\n\n<p>Don&rsquo;t miss out on the best deals on the market, and shop for an OE-grade crankshaft position sensor today!<\/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\"> 4<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The crankshaft position sensor (CKP) sends information to the powertrain control module (PCM) about the crankshaft&rsquo;s position and rotation speed&#8230;. <a href=\"https:\/\/www.carparts.com\/blog\/p0338-code-crankshaft-position-sensor-a-circuit-high-input\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":75849,"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":[1623],"ppma_author":[2607,2855],"class_list":{"0":"post-75841","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"tag-crankshaft-position-sensor-2","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>P0338 Code: Crankshaft Position Sensor \u201cA\u201d Circuit High Input - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Has your vehicle recently logged a P0338 trouble code? Learn about its meaning and common causes and symptoms in this article.\" \/>\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\/p0338-code-crankshaft-position-sensor-a-circuit-high-input\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0338 Code: Crankshaft Position Sensor \u201cA\u201d Circuit High Input - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Has your vehicle recently logged a P0338 trouble code? Learn about its meaning and common causes and symptoms in this article.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0338-code-crankshaft-position-sensor-a-circuit-high-input\/\" \/>\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=\"2022-10-18T10:40:27+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-28T04:50:00+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/10\/car-ckp-image.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1500\" \/>\n\t<meta property=\"og:image:height\" content=\"1067\" \/>\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\\\/p0338-code-crankshaft-position-sensor-a-circuit-high-input\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0338-code-crankshaft-position-sensor-a-circuit-high-input\\\/\"},\"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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