{"id":73571,"date":"2022-10-09T23:18:28","date_gmt":"2022-10-10T06:18:28","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=73571"},"modified":"2026-04-29T02:39:47","modified_gmt":"2026-04-29T09:39:47","slug":"p0337-crankshaft-position-sensor-a-circuit-low","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0337-crankshaft-position-sensor-a-circuit-low\/","title":{"rendered":"P0337: Crankshaft Position Sensor \u201cA\u201d Circuit Low"},"content":{"rendered":"<!DOCTYPE html PUBLIC \"-\/\/W3C\/\/DTD HTML 4.0 Transitional\/\/EN\" \"http:\/\/www.w3.org\/TR\/REC-html40\/loose.dtd\">\n<html><body><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Reading Time: <\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span><style>.kadence-column73571_b28bf2-61 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column73571_b28bf2-61 > .kt-inside-inner-col,.kadence-column73571_b28bf2-61 > .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-column73571_b28bf2-61 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column73571_b28bf2-61 > .kt-inside-inner-col{flex-direction:column;}.kadence-column73571_b28bf2-61 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column73571_b28bf2-61 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column73571_b28bf2-61{position:relative;}@media all and (max-width: 1024px){.kadence-column73571_b28bf2-61 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column73571_b28bf2-61 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column kadence-column73571_b28bf2-61 inner-column-1 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-a1c957  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-d13c74\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading73571_03f200-1a, .wp-block-kadence-advancedheading.kt-adv-heading73571_03f200-1a[data-kb-block=\"kb-adv-heading73571_03f200-1a\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading73571_03f200-1a mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading73571_03f200-1a[data-kb-block=\"kb-adv-heading73571_03f200-1a\"] 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-heading73571_03f200-1a img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading73571_03f200-1a[data-kb-block=\"kb-adv-heading73571_03f200-1a\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading73571_03f200-1a summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading73571_03f200-1a\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>DTC P0337 stands for &ldquo;Crankshaft Position Sensor &ldquo;A&rdquo; Circuit Low,&rdquo; and it is logged when the PCM detects a problem with the CKP sensor.<\/li>\n\n\n\n<li>Code P0337 is commonly caused by a faulty crankshaft position sensor, a faulty powertrain control module, and wiring issues.<\/li>\n\n\n\n<li>Symptoms of code P0337 include poor engine performance, an engine that cranks but won&rsquo;t start, and poor fuel economy.<\/li>\n<\/ul>\n<\/div><\/div>\n<\/div><\/div><\/div>\n<\/div><\/div>\n\n\n\n\n\n<p>The crankshaft position (CKP) sensor is typically found in distributorless ignition systems. It works the same way as the ignition pickup and trigger wheel, sending timing signals to the <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"powertrain control module\">powertrain control module<\/a> (PCM) and helping the computer determine the correct firing sequence. If a problem with the CKP sensor is detected by the PCM, it will log a P0337 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0337 Code Mean?<\/h2>\n\n\n\n<p><a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Diagnostic trouble code\">Diagnostic trouble code<\/a> (DTC) P0337 stands for &ldquo;Crankshaft Position Sensor &lsquo;A&rsquo; Circuit Low.&rdquo;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"602\" src=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/crankshaft-position-sensor-distributorless-ignition-system-1024x602.jpg\" alt=\"crankshaft position sensor distributorless ignition system\" class=\"wp-image-73844\" style=\"width:1024px;height:602px\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/crankshaft-position-sensor-distributorless-ignition-system-1024x602.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/crankshaft-position-sensor-distributorless-ignition-system-300x176.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/crankshaft-position-sensor-distributorless-ignition-system-768x452.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/crankshaft-position-sensor-distributorless-ignition-system-1536x904.jpg 1536w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/crankshaft-position-sensor-distributorless-ignition-system-150x88.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/crankshaft-position-sensor-distributorless-ignition-system.jpg 1700w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption class=\"wp-element-caption\">In a distributorless ignition system, the CKP sensor replaces the distributor shaft in providing timing signal information.<\/figcaption><\/figure>\n\n\n\n<p>In a distributorless ignition system, the CKP sensor replaces the distributor shaft in providing timing signal information. The signals sent by the sensor to the PCM is used to monitor the engine&rsquo;s <a href=\"https:\/\/www.carparts.com\/blog\/what-does-car-rpm-stand-for\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"revolutions per minute\">revolutions per minute<\/a> (RPMs). Together with the camshaft position sensor, the CKP sensor informs the PCM about valve timing and helps it control the injector and ignition timing.<\/p>\n\n\n\n<p>The CKP sensor is also used to detect abnormalities in the crank speed caused by ignition misfire.<\/p>\n\n\n\n<p>If the CKP sensor&rsquo;s supply voltage is disrupted, it won&rsquo;t be able to send the necessary signals for the PCM to initiate the firing sequence, triggering DTC P0337.<\/p>\n\n\n\n<p><strong><em>Note:<\/em><\/strong><em> The definition of <\/em><em>code P0337 <\/em><em>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 P0337 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.carparts.com\/blog\/the-top-5-bad-crankshaft-position-sensor-symptoms\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty crankshaft position sensor\">Faulty crankshaft position sensor<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/car-pcm-meaning-symptoms-of-failure-and-more\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Faulty powertrain control module\">Faulty powertrain control module<\/a><\/li>\n\n\n\n<li>Wiring issues<\/li>\n\n\n\n<li>Damaged tone ring<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0337 Code?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Poor engine performance<\/li>\n\n\n\n<li><a href=\"https:\/\/www.carparts.com\/blog\/my-car-wont-start-what-should-i-do\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Engine cranks but won&rsquo;t start\">Engine cranks but won&rsquo;t start<\/a><\/li>\n\n\n\n<li>Decreased fuel economy<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0337 Code<\/h2>\n\n\n\n<p>When diagnosing trouble codes, keep in mind that the steps and protocols for doing so can depend on your vehicle&rsquo;s year, make, and model. One vehicle might require additional steps than another, so make sure you&rsquo;re consulting a vehicle-specific guide before proceeding.<\/p>\n\n\n\n<p>Diagnosing a trouble code such as the P0337 typically involves using a scan tool and oscilloscope, which can be tricky if you&rsquo;re not familiar with how they work. In this case, it might be best to bring your vehicle to your local auto repair shop and have a trained professional diagnose your vehicle for you. But if you&rsquo;re well-versed with the steps on how to diagnose trouble codes, then you can go ahead and do it yourself.<\/p>\n\n\n\n<p>To help you out, here is a video that shows 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-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\nhttps:\/\/www.youtube.com\/watch?v=RtqeOYNgn8A\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0337 Code<\/h2>\n\n\n\n<p>Attempting to fix a P0337 code can be frustrating and confusing especially if you don&rsquo;t have the right tools and automotive know-how. Under these circumstances, it&rsquo;s best to leave the job to a trained professional to ensure that the steps for repairing the problem are being followed correctly.<\/p>\n\n\n\n<p>If you&rsquo;re someone who knows how to work their way around resolving DTCs, make sure to have all the tools and information you need before starting. Guides like those from Chilton or an ALLDATA subscription contain vehicle-specific repair information, so you might want to check those out before you begin.<\/p>\n\n\n\n<div class=\"rsi-card\">\n  <div class=\"rsi-thumb\">\n    <img decoding=\"async\" src=\"https:\/\/cld.partsimg.com\/d_noimage.jpg\/b_white\/e_sharpen,e_auto_brightness,e_auto_contrast\/f_auto\/q_auto:eco,dpr_auto\/w_873,h_873,c_pad\/images\/reph311817_1\">\n  <\/div>\n  <div class=\"rsi-info\">\n    <span class=\"rsi-title\">The Crankshaft Position Sensor Order Sheet: How to Build the Right Cart for One Job<\/span>\n    <span class=\"rsi-desc\">Check out this practical guide to ordering the right crankshaft position sensor, including fitment splits, kit logic, and what to verify before installation.<\/span>\n    <a href=\"https:\/\/www.carparts.com\/blog\/the-crankshaft-position-sensor-order-sheet-build-the-right-cart-for-the-job-quickref\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Discover Your Options\">Discover Your Options<\/a>\n  <\/div>\n<\/div>\n\n\n<h2 class=\"wp-block-heading\">Getting Your Hands on a New Crankshaft Position Sensor to Fix DTC P0337<\/h2>\n\n\n\n<p>There&rsquo;s a good chance that a bad <a href=\"https:\/\/www.carparts.com\/crankshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"crankshaft position sensor\">crankshaft position sensor<\/a> is what&rsquo;s causing the PCM to log P0337 to begin with. Luckily, you can get a replacement that&rsquo;s not only compatible with your vehicle but built to last from <a href=\"https:\/\/www.carparts.com\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CarParts.com\">CarParts.com<\/a>.<\/p>\n\n\n\n<p>The best part? You can order online and get your new crankshaft position sensor shipped straight to your doorstep. We ship orders from strategically located warehouses across the US to ensure fast and efficient shipping.<\/p>\n\n\n\n<p>Simply browse through our selection of high-quality aftermarket parts by using our website&rsquo;s vehicle selector. Shop without any worries thanks to our 60-day return and lifetime replacement guarantees.<\/p>\n\n\n\n<p>Shop and enjoy our best deals 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\"> 3<\/span> <span class=\"rt-label rt-postfix\">minutes<\/span><\/span>The crankshaft position (CKP) sensor is typically found in distributorless ignition systems. It works the same way as the ignition&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0337-crankshaft-position-sensor-a-circuit-low\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":1651,"featured_media":73850,"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":[1623,1323],"ppma_author":[2607,2855],"class_list":{"0":"post-73571","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":"tag-engine-control-module-2","10":"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>P0337: Crankshaft Position Sensor \u201cA\u201d Circuit Low - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Find out what a P0337 code means and the most common causes and symptoms associated with 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\/p0337-crankshaft-position-sensor-a-circuit-low\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"P0337: Crankshaft Position Sensor \u201cA\u201d Circuit Low - In The Garage with CarParts.com\" \/>\n<meta property=\"og:description\" content=\"Find out what a P0337 code means and the most common causes and symptoms associated with this trouble code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.carparts.com\/blog\/p0337-crankshaft-position-sensor-a-circuit-low\/\" \/>\n<meta property=\"og:site_name\" content=\"In The Garage with CarParts.com\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/carpartscom\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-10T06:18:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-04-29T09:39:47+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/09\/mechanic-flashes-light-to-find-crankshaft-position-sensor.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2000\" \/>\n\t<meta property=\"og:image:height\" content=\"1335\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"CarParts.com Research Team, William Guzenski, ASE Certified Master Automobile Technician\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@https:\/\/twitter.com\/CarPartscom\" \/>\n<meta name=\"twitter:site\" content=\"@carpartscom\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CarParts.com Research Team\" \/>\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\\\/p0337-crankshaft-position-sensor-a-circuit-low\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.carparts.com\\\/blog\\\/p0337-crankshaft-position-sensor-a-circuit-low\\\/\"},\"author\":[{\"@type\":\"Person\",\"$id\":\"1651\",\"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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