{"id":71922,"date":"2022-09-06T02:12:31","date_gmt":"2022-09-06T09:12:31","guid":{"rendered":"https:\/\/blogv2prod.wpenginepowered.com\/blog\/?p=71922"},"modified":"2023-09-25T19:16:53","modified_gmt":"2023-09-26T02:16:53","slug":"p0726-code-engine-speed-input-circuit-range-performance","status":"publish","type":"post","link":"https:\/\/www.carparts.com\/blog\/p0726-code-engine-speed-input-circuit-range-performance\/","title":{"rendered":"P0726 Code: Engine Speed Input Circuit Range \/ Performance"},"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_718fa7-24 > .kt-inside-inner-col{border-top-width:0px;border-right-width:0px;border-bottom-width:0px;border-left-width:0px;}.kadence-column_718fa7-24 > .kt-inside-inner-col,.kadence-column_718fa7-24 > .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_718fa7-24 > .kt-inside-inner-col{column-gap:var(--global-kb-gap-sm, 1rem);}.kadence-column_718fa7-24 > .kt-inside-inner-col{flex-direction:column;}.kadence-column_718fa7-24 > .kt-inside-inner-col > .aligncenter{width:100%;}.kadence-column_718fa7-24 > .kt-inside-inner-col:before{opacity:0.3;}.kadence-column_718fa7-24{position:relative;}@media all and (max-width: 1024px){.kadence-column_718fa7-24 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}@media all and (max-width: 767px){.kadence-column_718fa7-24 > .kt-inside-inner-col{flex-direction:column;justify-content:center;}}<\/style>\n<div class=\"wp-block-kadence-column inner-column-1 kadence-column_718fa7-24 qk-look-widget\"><div class=\"kt-inside-inner-col\">\n<div class=\"wp-block-ultimate-post-row ultp-block-1f1a2b  qk-main-wrap\"><div class=\"ultp-row-wrapper\"><div class=\"ultp-row-content\">\n<div class=\"wp-block-ultimate-post-column ultp-block-fb27be\"><div class=\"ultp-column-wrapper\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_08c65a-ae, .wp-block-kadence-advancedheading.kt-adv-heading_08c65a-ae[data-kb-block=\"kb-adv-heading_08c65a-ae\"]{text-align:center;font-size:20px;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_08c65a-ae mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_08c65a-ae[data-kb-block=\"kb-adv-heading_08c65a-ae\"] 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_08c65a-ae img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_08c65a-ae[data-kb-block=\"kb-adv-heading_08c65a-ae\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<div class=\"kt-adv-heading_08c65a-ae summary-title wp-block-kadence-advancedheading\" data-kb-block=\"kb-adv-heading_08c65a-ae\"><span>Summary<\/span><\/div>\n\n\n\n<ul class=\"wp-block-list\"><li>DTC P0726 stands for &ldquo;Engine Speed Input Circuit Range\/Performance,&rdquo; and this code is logged when the TCM doesn&rsquo;t receive the expected engine speed signal.<\/li><li>Code P0726 is commonly caused by faulty CKPs and CMPS, faulty transmission output speed sensors, and worn engine speed sensor reluctor rings.<\/li><li>Symptoms of code P0726 include poor fuel economy, a lit check engine light, and a vehicle stuck in limp mode.<\/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\/camshaft-position-sensor\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"camshaft position sensor (CMP)\">camshaft position sensor (CMP)<\/a> and <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> are important components because they allow the <a href=\"https:\/\/www.carparts.com\/engine-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"engine control module (ECM)\">engine control module (ECM)<\/a> and <a href=\"https:\/\/www.carparts.com\/transmission-control-module\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"transmission control module (TCM)\">transmission control module (TCM)<\/a> to track the engine&rsquo;s RPM. In some cases, problems with these sensors can lead to transmission-related symptoms. Connect a scan tool to check if your vehicle&rsquo;s ECM has stored the P0726 code.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Does the P0726 Code Mean?<\/h2>\n\n\n\n<p>Diagnostic trouble code P0726 is defined as Engine Speed Input Circuit Range\/Performance.<\/p>\n\n\n\n<p>During acceleration, the transmission shifts up the gear range. This allows the vehicle to reach higher speeds with less <a href=\"https:\/\/www.carparts.com\/blog\/what-does-car-rpm-stand-for\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"RPM\">RPM<\/a>, which prevents excessive fuel consumption and engine wear. However, lowering the engine&rsquo;s RPM will result in the driver having less available power and torque.<\/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\/08\/car-cylinder-block-1024x684.jpg\" alt=\"car cylinder block\" class=\"wp-image-71950\" width=\"1024\" height=\"684\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/car-cylinder-block-1024x684.jpg 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/car-cylinder-block-300x200.jpg 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/car-cylinder-block-768x513.jpg 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/car-cylinder-block-600x400.jpg 600w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/car-cylinder-block-1200x800.jpg 1200w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/car-cylinder-block-150x100.jpg 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/car-cylinder-block.jpg 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>The CMP and CKP allow your vehicle&rsquo;s ECM and TCM to track the engine&rsquo;s RPM. If the TCM doesn&rsquo;t receive the expected engine speed signal from the ECM, the code P0726 is set.<\/figcaption><\/figure>\n\n\n\n<p>Depending on the driver&rsquo;s throttle input, the TCM will determine the appropriate shift timing based on variables like engine RPM and vehicle speed. For the transmission to determine the right gear relative to the driver&rsquo;s inputs, it needs to account for engine RPM because it&rsquo;s a major factor in how much power and torque the engine can produce. Engine RPM is measured by the CKP and CMP sensors.<\/p>\n\n\n\n<p>In place of a dedicated engine speed sensor, the TCM sometimes receives the engine speed signal from the engine control module (ECM) over the data network.&nbsp; Code P0726 is set when the TCM doesn&rsquo;t receive the expected engine speed signal.<\/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><em><strong>Note: <\/strong>The definition of the P0726 code can 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 P0726 Code?<\/h2>\n\n\n\n<p>The issues that trigger the P0726 code can be caused by the following problems:<\/p>\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\">Faulty CKP<\/a> or <a href=\"https:\/\/www.carparts.com\/blog\/bad-camshaft-position-sensor-symptoms-diagnosis-replacement-cost\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"CMP\">CMP<\/a><\/li><li>Faulty transmission output speed sensor<\/li><li>Damaged or worn engine speed sensor reluctor ring<\/li><li>Mechanical transmission failure that causes transmission slippage<\/li><li>Faulty TCM<\/li><li>Faulty ECM<\/li><li>Circuit problems, such as a damaged <a href=\"https:\/\/www.carparts.com\/blog\/car-wiring\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"wire\">wire<\/a> or poor connection<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What are the Common Symptoms of the P0726 Code?<\/h2>\n\n\n\n<p>Your vehicle might exhibit the following symptoms if the P0707 code has been stored:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Decreased fuel economy<\/li><li>The transmission erratically shifts<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/reasons-why-your-cars-tachometer-is-not-working\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Malfunctioning tachometer\">Malfunctioning tachometer<\/a><\/li><li>Malfunctioning speedometer or odometer<\/li><li>Transmission slippage or delayed engagement<\/li><li><a href=\"https:\/\/www.carparts.com\/blog\/check-engine-light-flashing\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"Check engine light\">Check engine light<\/a><\/li><li>Vehicle stuck in <a href=\"https:\/\/www.carparts.com\/blog\/web-stories\/what-is-limp-mode\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"limp mode\">limp mode<\/a><\/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\/08\/automatic-transmission-output-speed-sensor-1024x537.png\" alt=\"automatic transmission output speed sensor\" class=\"wp-image-71949\" width=\"1024\" height=\"537\" srcset=\"https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automatic-transmission-output-speed-sensor-1024x537.png 1024w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automatic-transmission-output-speed-sensor-300x157.png 300w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automatic-transmission-output-speed-sensor-768x402.png 768w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automatic-transmission-output-speed-sensor-150x79.png 150w, https:\/\/www.carparts.com\/blog\/wp-content\/uploads\/2022\/08\/automatic-transmission-output-speed-sensor.png 1500w\" sizes=\"(max-width: 1024px) 100vw, 1024px\"><figcaption>A faulty transmission output speed sensor can result in a logged P0726 code.<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">How to Diagnose the P0726 Code<\/h2>\n\n\n\n<p>The P0726 code concerns several complex components like the transmission, transmission sensor, and TCM. This code is known to be commonly caused by specific issues, but you should still check if your vehicle has them before proceeding with repairs.<\/p>\n\n\n\n<p>When it comes to troubleshooting any <a href=\"https:\/\/www.carparts.com\/blog\/search-obd2-codes-list\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"diagnostic code\">diagnostic code<\/a>, always remember that procedures vary depending on vehicle specifications. If you aren&rsquo;t familiar with the troubleshooting process, ask a trained mechanic to do the job for you.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Fix the P0726 Code<\/h2>\n\n\n\n<p>Fixing the problems that cause the P0726 code can be quite difficult if you don&rsquo;t have the right tools and knowledge. It might be more convenient to simply bring your vehicle to your local mechanic for repairs. If you think you have the right knowledge and tools, then follow the appropriate steps and protocols to fix the problem without creating complications.<\/p>\n\n\n\n<p>Remember that there isn&rsquo;t any cure-all fix-all solution that can fix a trouble code in all vehicle models. Even mechanics sometimes rely on knowledge banks and <a href=\"https:\/\/www.carparts.com\/blog\/best-online-resources-to-help-you-learn-how-to-fix-cars\/\" target=\"_blank\" rel=\"noreferrer noopener\" aria-label=\"online resources\">online resources<\/a> before conducting repairs. Chilton guides or an ALLDATA subscription contain vehicle-specific repair information, so you might want to check these out before starting the repair process.<\/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 camshaft position sensor (CMP) and crankshaft position sensor (CKP) are important components because they allow the engine control module&#8230; <a href=\"https:\/\/www.carparts.com\/blog\/p0726-code-engine-speed-input-circuit-range-performance\/\" rel=\"nofollow\">Read More<\/a><\/p>\n","protected":false},"author":4,"featured_media":71948,"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":[],"ppma_author":[2607,2855],"class_list":{"0":"post-71922","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-obd-ii-trouble-codes","8":"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>P0726 Code: Engine Speed Input Circuit Range \/ Performance - In The Garage with CarParts.com<\/title>\n<meta name=\"description\" content=\"Learn about the P0726 code\u2019s definition and common problems and symptoms in this article. 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